| Abildgaardia ovata | (Burm.f.) Kral | Cyperaceae | 8 |
| Abutilon grandifolium | (Willd.) Sweet | Malvaceae | 8 |
| Abutilon viscosum | (L.) Dorr | Malvaceae | 8 |
| Acaciella angustissima | (Mill.) Britton & Rose | Fabaceae | 8 |
| Acaena alpina | Poepp. ex Walp. | Rosaceae | 8 |
| Acaena magellanica | (Lam.) Vahl | Rosaceae | 8 |
| Acaena ovalifolia | Ruiz & Pav. | Rosaceae | 8 |
| Acaena pinnatifida | Ruiz & Pav. | Rosaceae | 8 |
| Acaena splendens | Hook. & Arn. | Rosaceae | 8 |
| Acalypha communis | Müll.Arg. | Euphorbiaceae | 8 |
| Acalypha poiretii | Spreng. | Euphorbiaceae | 8 |
| Acanthocalycium leucanthum | (Gillies ex Salm-Dyck) Schlumpb. | Cactaceae | 8 |
| Acanthospermum australe | (Loefl.) Kuntze | Asteraceae | 8 |
| Acanthospermum hispidum | DC. | Asteraceae | 8 |
| Acanthostyles buniifolius | (Hook. & Arn.) R.M.King & H.Rob. | Asteraceae | 8 |
| Acanthosyris falcata | Griseb. | Santalaceae | 8 |
| Acaulimalva nubigena | (Walp) Krapov. | Malvaceae | 8 |
| Acicarpha tribuloides | Juss. | Calyceraceae | 8 |
| Acmella decumbens | (Sm.) R.K.Jansen | Asteraceae | 8 |
| Acrocomia totai | Mart. | Arecaceae | 8 |
| Adenaria floribunda | Kunth | Lythraceae | 8 |
| Adesmia corymbosa | Clos | Fabaceae | 8 |
| Adesmia glomerula | Clos | Fabaceae | 8 |
| Adesmia grandiflora | Gillies ex Hook. & Arn. | Fabaceae | 8 |
| Adesmia horrida | Gillies ex Hook. & Arn. | Fabaceae | 8 |
| Adesmia incana | Vogel | Fabaceae | 8 |
| Adesmia longipes | Phil. | Fabaceae | 8 |
| Adesmia miraflorensis | J.Rémy | Fabaceae | 8 |
| Adesmia obovata | Clos | Fabaceae | 8 |
| Adesmia parvifolia | Phil. | Fabaceae | 8 |
| Adesmia pinifolia | Gillies ex Hook. & Arn. | Fabaceae | 8 |
| Adesmia subterranea | Clos | Fabaceae | 8 |
| Adesmia trijuga | Gillies ex Hook. & Arn. | Fabaceae | 8 |
| Adesmia volckmannii | Phil. | Fabaceae | 8 |
| Adiantopsis chlorophylla | (Sw.) Fée | Pteridaceae | 8 |
| Adiantum chilense | Kaulf. | Pteridaceae | 8 |
| Adiantum lorentzii | Hieron. | Pteridaceae | 8 |
| Adiantum poiretii | Wikstr. | Pteridaceae | 8 |
| Adiantum raddianum | C.Presl | Pteridaceae | 8 |
| Aeschynomene americana | L. | Fabaceae | 8 |
| Agalinis communis | (Cham. & Schltdl.) D'Arcy | Orobanchaceae | 8 |
| Agalinis genistifolia | (Cham. & Schltdl.) D'Arcy | Orobanchaceae | 8 |
| Ageratina glechonophylla | (Less.) R.M.King & H.Rob. | Asteraceae | 8 |
| Agrostis perennans | (Walter) Tuck. | Poaceae | 8 |
| Airampoa ayrampo | (Haenke) Doweld | Cactaceae | 8 |
| Airampoa corrugata | (Salm-Dyck) Doweld | Cactaceae | 8 |
| Alchemilla pinnata | Ruiz & Pav. | Rosaceae | 8 |
| Allenrolfea patagonica | (Moq.) Kuntze | Chenopodiaceae | 8 |
| Allenrolfea vaginata | (Griseb.) Kuntze | Chenopodiaceae | 8 |
| Allionia choisyi | Standl. | Nyctaginaceae | 8 |
| Allionia incarnata | L. | Nyctaginaceae | 8 |
| Allophylus edulis | (A.St.-Hil., A.Juss. & Cambess.) Radlk. ex Warm. | Sapindaceae | 8 |
| Alnus acuminata | Kunth | Betulaceae | 8 |
| Alopecurus magellanicus | Lam. | Poaceae | 8 |
| Aloysia citrodora | Paláu | Verbenaceae | 8 |
| Aloysia deserticola | (Phil.) Lu-Irving & N.O'Leary | Verbenaceae | 8 |
| Aloysia gratissima | (Gillies & Hook.) Tronc. | Verbenaceae | 8 |
| Aloysia virgata | (Ruiz & Pav.) Juss. | Verbenaceae | 8 |
| Alstroemeria andina | Phil. | Alstroemeriaceae | 8 |
| Alstroemeria ligtu | L. | Alstroemeriaceae | 8 |
| Alstroemeria psittacina | Lehm. | Alstroemeriaceae | 8 |
| Alstroemeria spathulata | C.Presl | Alstroemeriaceae | 8 |
| Alternanthera caracasana | Kunth | Amaranthaceae | 8 |
| Alternanthera flavescens | Kunth | Amaranthaceae | 8 |
| Alternanthera paronychioides | A.St.-Hil. | Amaranthaceae | 8 |
| Alternanthera philoxeroides | (Mart.) Griseb. | Amaranthaceae | 8 |
| Alternanthera pungens | Kunth | Amaranthaceae | 8 |
| Amaranthus blitum | L. | Amaranthaceae | 8 |
| Amaranthus caudatus | L. | Amaranthaceae | 8 |
| Amaranthus deflexus | L. | Amaranthaceae | 8 |
| Amaranthus hybridus | L. | Amaranthaceae | 8 |
| Amaranthus muricatus | (Moq.) Hieron. | Amaranthaceae | 8 |
| Amaranthus spinosus | L. | Amaranthaceae | 8 |
| Amaranthus viridis | L. | Amaranthaceae | 8 |
| Amauropelta achalensis | (Hieron.) Salino & T.E.Almeida | Thelypteridaceae | 8 |
| Amauropelta argentina | (Hieron.) Salino & T.E.Almeida | Thelypteridaceae | 8 |
| Ambrosia tenuifolia | Spreng. | Asteraceae | 8 |
| Amburana cearensis | (Allemão) A.C.Sm. | Fabaceae | 8 |
| Ammannia auriculata | Willd. | Lythraceae | 8 |
| Ammannia latifolia | L. | Lythraceae | 8 |
| Amphilophium carolinae | (Lindl.) L.G.Lohmann | Bignoniaceae | 8 |
| Amphilophium crucigerum | (L.) L.G.Lohmann | Bignoniaceae | 8 |
| Amphilophium paniculatum | (L.) Kunth | Bignoniaceae | 8 |
| Amphiscirpus nevadensis | (S.Watson) Oteng-Yeb. | Cyperaceae | 8 |
| Amsinckia calycina | (Moris) Chater | Boraginaceae | 8 |
| Amsinckia tessellata | A.Gray | Boraginaceae | 8 |
| Anarthrophyllum rigidum | (Gillies ex Hook. & Arn.) Hieron. | Fabaceae | 8 |
| Anchietea pyrifolia | (Mart.) G.Don | Violaceae | 8 |
| Anemia phyllitidis | (L.) Sw. | Anemiaceae | 8 |
| Anemia tomentosa | (Savigny) Sw. | Anemiaceae | 8 |
| Anemone decapetala | Ard. | Ranunculaceae | 8 |
| Anemone multifida | Poir. | Ranunculaceae | 8 |
| Angelonia integerrima | Spreng. | Plantaginaceae | 8 |
| Annona rugulosa | (Schltdl.) H.Rainer | Annonaceae | 8 |
| Anoda cristata | (L.) Schltdl. | Malvaceae | 8 |
| Anredera cordifolia | (Ten.) Steenis | Basellaceae | 8 |
| Aquarius grandiflorus | (Cham. & Schltdl.) Christenh. & Byng | Alismataceae | 8 |
| Araujia angustifolia | (Hook. & Arn.) Steud. | Apocynaceae | 8 |
| Araujia brachystephana | (Griseb.) Fontella & Goyder | Apocynaceae | 8 |
| Araujia odorata | (Hook. & Arn.) Fontella & Goyder | Apocynaceae | 8 |
| Araujia variegata | (Griseb.) Fontella & Goyder | Apocynaceae | 8 |
| Arenaria digyna | Willd. ex D.F.K.Schltdl. | Caryophyllaceae | 8 |
| Arenaria lanuginosa | (Michx.) Rohrb. | Caryophyllaceae | 8 |
| Argemone subfusiformis | Ownbey | Papaveraceae | 8 |
| Argylia bustillosii | Phil. | Bignoniaceae | 8 |
| Argylia uspallatensis | DC. | Bignoniaceae | 8 |
| Argyrochosma nivea | (Poir.) Windham | Pteridaceae | 8 |
| Aristida adscensionis | L. | Poaceae | 8 |
| Aristida mendocina | Phil. | Poaceae | 8 |
| Aristolochia argentina | Griseb. | Aristolochiaceae | 8 |
| Aristolochia lingua | Malme | Aristolochiaceae | 8 |
| Aristolochia littoralis | Parodi | Aristolochiaceae | 8 |
| Aristotelia chilensis | (Molina) Stuntz | Elaeocarpaceae | 8 |
| Arjona patagonica | Hombr. & Jacquinot ex Decne. | Schoepfiaceae | 8 |
| Armeria curvifolia | Bertero | Plumbaginaceae | 8 |
| Arquita mimosifolia | (Griseb.) Gagnon, G.P.Lewis & C.E.Hughes | Fabaceae | 8 |
| Arquita trichocarpa | (Griseb.) Gagnon, G.P.Lewis & C.E.Hughes | Fabaceae | 8 |
| Artemisia mendozana | DC. | Asteraceae | 8 |
| Asclepias mellodora | A.St.-Hil. | Apocynaceae | 8 |
| Aspidosperma quebracho-blanco | Schltdl. | Apocynaceae | 8 |
| Asplenium monanthes | L. | Aspleniaceae | 8 |
| Asplenium papaverifolium | (Kunze) Viane | Aspleniaceae | 8 |
| Asplenium praemorsum | Sw. | Aspleniaceae | 8 |
| Asplenium resiliens | Kunze | Aspleniaceae | 8 |
| Asplenium serra | Langsd. & Fisch. | Aspleniaceae | 8 |
| Aster squamatus | (Spreng.) Hieron. | Asteraceae | 8 |
| Astraea lobata | (L.) Klotzsch | Euphorbiaceae | 8 |
| Astragalus arnottianus | (Gillies ex Hook. & Arn.) Macloskie | Fabaceae | 8 |
| Astragalus garbancillo | Cav. | Fabaceae | 8 |
| Astragalus pehuenches | Niederl. | Fabaceae | 8 |
| Astragalus peruvianus | Vogel | Fabaceae | 8 |
| Astragalus uniflorus | DC. | Fabaceae | 8 |
| Astrolepis sinuata | (Lag. ex Sw.) D.M.Benham & Windham | Pteridaceae | 8 |
| Atriplex pamparum | Griseb. | Chenopodiaceae | 8 |
| Austroblechnum lechleri | (T.Moore) Gasper & V.A.O.Dittrich | Blechnaceae | 8 |
| Austroblechnum microphyllum | (Goldm.) Gasper & V.A.O.Dittrich | Blechnaceae | 8 |
| Austroblechnum penna-marina | (Poir.) Gasper & V.A.O.Dittrich | Blechnaceae | 8 |
| Austrobrickellia patens | (Hook. & Arn.) R.M.King & H.Rob. | Asteraceae | 8 |
| Austrocactus bertinii | (J.F.Cels) Britton & Rose | Cactaceae | 8 |
| Austrocylindropuntia shaferi | (Britton & Rose) Backeb. | Cactaceae | 8 |
| Austrocylindropuntia vestita | (Salm-Dyck) Backeb. | Cactaceae | 8 |
| Austrolycopodium magellanicum | (P.Beauv.) Holub | Lycopodiaceae | 8 |
| Avenella flexuosa | (L.) Drejer | Poaceae | 8 |
| Axonopus compressus | (Sw.) P.Beauv. | Poaceae | 8 |
| Axonopus fissifolius | (Raddi) Kuhlm. | Poaceae | 8 |
| Ayenia filipes | (Mart. ex K.Schum.) Christenh. & Byng | Malvaceae | 8 |
| Ayenia odonellii | Cristóbal | Malvaceae | 8 |
| Aylostera deminuta | (F.A.C.Weber) Backeb. | Cactaceae | 8 |
| Azolla filiculoides | Lam. | Salviniaceae | 8 |
| Azorella biloba | (Schltdl.) Wedd. | Apiaceae | 8 |
| Azorella compacta | Phil. | Apiaceae | 8 |
| Azorella madreporica | Clos | Apiaceae | 8 |
| Azorella monantha | Clos | Apiaceae | 8 |
| Azorella prolifera | (Cav.) G.M.Plunkett & A.N.Nicolas | Apiaceae | 8 |
| Azorella ruizii | G.M.Plunkett & A.N.Nicolas | Apiaceae | 8 |
| Azorella trifoliolata | Clos | Apiaceae | 8 |
| Azorella trifurcata | Pers. | Apiaceae | 8 |
| Baccharis aliena | (Spreng.) Joch.Müll. | Asteraceae | 8 |
| Baccharis alpina | Kunth | Asteraceae | 8 |
| Baccharis artemisioides | Hook. & Arn. | Asteraceae | 8 |
| Baccharis articulata | Pers. | Asteraceae | 8 |
| Baccharis boliviensis | (Wedd.) Cabrera | Asteraceae | 8 |
| Baccharis caespitosa | Pers. | Asteraceae | 8 |
| Baccharis coridifolia | DC. | Asteraceae | 8 |
| Baccharis darwinii | Hook. & Arn. | Asteraceae | 8 |
| Baccharis dracunculifolia | DC. | Asteraceae | 8 |
| Baccharis genistelloides | (Lam.) Pers. | Asteraceae | 8 |
| Baccharis glutinosa | Pers. | Asteraceae | 8 |
| Baccharis grisebachii | Hieron. | Asteraceae | 8 |
| Baccharis juncea | (Cass.) Desf. | Asteraceae | 8 |
| Baccharis latifolia | (Ruiz & Pav.) Pers. | Asteraceae | 8 |
| Baccharis linearifolia | Pers. | Asteraceae | 8 |
| Baccharis linearis | Pers. | Asteraceae | 8 |
| Baccharis magellanica | (Lam.) Pers. | Asteraceae | 8 |
| Baccharis neaei | DC. | Asteraceae | 8 |
| Baccharis notosergila | Griseb. | Asteraceae | 8 |
| Baccharis punctulata | DC. | Asteraceae | 8 |
| Baccharis salicifolia | (Ruiz & Pav.) Pers. | Asteraceae | 8 |
| Baccharis spicata | (Lam.) Baill. | Asteraceae | 8 |
| Baccharis tola | Phil. | Asteraceae | 8 |
| Baccharis trinervis | Pers. | Asteraceae | 8 |
| Baccharis ulicina | Hook. & Arn. | Asteraceae | 8 |
| Bacopa monnieri | (L.) Wettst. | Plantaginaceae | 8 |
| Barnadesia odorata | Griseb. | Asteraceae | 8 |
| Bauhinia forficata | Link | Fabaceae | 8 |
| Begonia boliviensis | A.DC. | Begoniaceae | 8 |
| Begonia cucullata | Willd. | Begoniaceae | 8 |
| Begonia veitchii | Hook.f. | Begoniaceae | 8 |
| Berberis empetrifolia | Lam. | Berberidaceae | 8 |
| Berberis grevilleana | Gillet | Berberidaceae | 8 |
| Berberis ruscifolia | Lam. | Berberidaceae | 8 |
| Bidens andicola | Kunth | Asteraceae | 8 |
| Bidens laevis | (L.) Britton, Sterns & Poggenb. | Asteraceae | 8 |
| Bidens pilosa | L. | Asteraceae | 8 |
| Bidens subalternans | DC. | Asteraceae | 8 |
| Bidens triplinervia | Kunth | Asteraceae | 8 |
| Bignonia callistegioides | Cham. | Bignoniaceae | 8 |
| Billbergia nutans | H.Wendl. ex Regel | Bromeliaceae | 8 |
| Bixa orellana | L. | Bixaceae | 8 |
| Blechnum hastatum | Kaulf. | Blechnaceae | 8 |
| Blechnum occidentale | L. | Blechnaceae | 8 |
| Blepharocalyx salicifolius | (Kunth) O.Berg | Myrtaceae | 8 |
| Bletia campanulata | Lex. | Orchidaceae | 8 |
| Blumenbachia dissecta | (Hook. & Arn.) Weigend & Grau | Loasaceae | 8 |
| Blumenbachia insignis | Schrad. | Loasaceae | 8 |
| Blumenbachia sylvestris | Poepp. | Loasaceae | 8 |
| Bocconia frutescens | L. | Papaveraceae | 8 |
| Boehmeria caudata | Sw. | Urticaceae | 8 |
| Boerhavia diffusa | L. | Nyctaginaceae | 8 |
| Bolboschoenus maritimus | (L.) Palla | Cyperaceae | 8 |
| Bomarea edulis | (Tussac) Herb. | Alstroemeriaceae | 8 |
| Bomarea macrocephala | Pax | Alstroemeriaceae | 8 |
| Bothriochloa barbinodis | (Lag.) Herter | Poaceae | 8 |
| Bothriochloa laguroides | (DC.) Herter | Poaceae | 8 |
| Bouchetia anomala | (Miers) Britton & Rusby | Solanaceae | 8 |
| Bougainvillea campanulata | Heimerl | Nyctaginaceae | 8 |
| Bougainvillea spinosa | (Cav.) Heimerl | Nyctaginaceae | 8 |
| Bougainvillea stipitata | Griseb. | Nyctaginaceae | 8 |
| Bouteloua aristidoides | (Kunth) Griseb. | Poaceae | 8 |
| Bouteloua barbata | Lag. | Poaceae | 8 |
| Bouteloua curtipendula | (Michx.) Torr. | Poaceae | 8 |
| Bouteloua megapotamica | (Spreng.) Kuntze | Poaceae | 8 |
| Bowlesia incana | Ruiz & Pav. | Apiaceae | 8 |
| Bromelia hieronymi | Mez | Bromeliaceae | 8 |
| Bromelia serra | Griseb. | Bromeliaceae | 8 |
| Bromus brevis | Steud. | Poaceae | 8 |
| Bromus catharticus | Vahl | Poaceae | 8 |
| Brunfelsia uniflora | (Pohl) D.Don | Solanaceae | 8 |
| Buchnera pusilla | Kunth | Orobanchaceae | 8 |
| Buddleja cordobensis | Griseb. | Scrophulariaceae | 8 |
| Buddleja stachyoides | Cham. & Schltdl. | Scrophulariaceae | 8 |
| Buddleja tubiflora | Benth. | Scrophulariaceae | 8 |
| Buddleja tucumanensis | Griseb. | Scrophulariaceae | 8 |
| Bulnesia foliosa | Griseb. | Zygophyllaceae | 8 |
| Caiophora canarinoides | (Lenné & K.Koch) Urb. & Gilg | Loasaceae | 8 |
| Caiophora chuquitensis | (Meyen) Urb. & Gilg | Loasaceae | 8 |
| Caiophora clavata | Urb. & Gilg | Loasaceae | 8 |
| Caiophora coronata | (Gillies ex Arn.) Hook. & Arn. | Loasaceae | 8 |
| Caiophora lateritia | Klotzsch | Loasaceae | 8 |
| Caiophora rosulata | (Wedd.) Urb. & Gilg | Loasaceae | 8 |
| Caladium bicolor | (Aiton) Vent. | Araceae | 8 |
| Calandrinia acaulis | Kunth | Montiaceae | 8 |
| Calandrinia affinis | Gillies ex Arn. | Montiaceae | 8 |
| Calandrinia ciliata | (Ruiz & Pav.) DC. | Montiaceae | 8 |
| Calandrinia graminifolia | Phil. | Montiaceae | 8 |
| Calceolaria corymbosa | Ruiz & Pav. | Calceolariaceae | 8 |
| Calceolaria dentata | Ruiz & Pav. | Calceolariaceae | 8 |
| Calceolaria filicaulis | Clos | Calceolariaceae | 8 |
| Calceolaria germainii | Witasek | Calceolariaceae | 8 |
| Calceolaria glacialis | Wedd. | Calceolariaceae | 8 |
| Calceolaria parviflora | Gillies ex Benth. | Calceolariaceae | 8 |
| Calceolaria pinifolia | Cav. | Calceolariaceae | 8 |
| Calceolaria polyclada | Kraenzl. | Calceolariaceae | 8 |
| Calceolaria polyrhiza | Cav. | Calceolariaceae | 8 |
| Calceolaria schickendantziana | Kraenzl. | Calceolariaceae | 8 |
| Calceolaria teucrioides | Griseb. | Calceolariaceae | 8 |
| Calibrachoa parviflora | (Juss.) D'Arcy | Solanaceae | 8 |
| Callianthe nivea | (Griseb.) Dorr | Malvaceae | 8 |
| Callianthe pauciflora | (A.St.-Hil.) Dorr | Malvaceae | 8 |
| Callisia repens | (Jacq.) L. | Commelinaceae | 8 |
| Callitriche heterophylla | Pursh | Plantaginaceae | 8 |
| Callitriche terrestris | Raf. | Plantaginaceae | 8 |
| Calycera crassifolia | (Miers) Hicken | Calyceraceae | 8 |
| Calycera herbacea | Cav. | Calyceraceae | 8 |
| Calyptocarpus brasiliensis | (Nees & Mart.) B.L.Turner | Asteraceae | 8 |
| Camissonia dentata | Reiche | Onagraceae | 8 |
| Camonea umbellata | (L.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Campuloclinium macrocephalum | DC. | Asteraceae | 8 |
| Canavalia bonariensis | Lindl. | Fabaceae | 8 |
| Canna glauca | L. | Cannaceae | 8 |
| Canna indica | L. | Cannaceae | 8 |
| Cantinoa mutabilis | (Rich.) Harley & J.F.B.Pastore | Lamiaceae | 8 |
| Capanemia micromera | Barb.Rodr. | Orchidaceae | 8 |
| Caperonia castaneifolia | (L.) A.St.-Hil. | Euphorbiaceae | 8 |
| Caperonia palustris | A.St.-Hil. | Euphorbiaceae | 8 |
| Capraria biflora | L. | Scrophulariaceae | 8 |
| Capsicum chacoense | Hunz. | Solanaceae | 8 |
| Cardamine glacialis | (G.Forst.) DC. | Brassicaceae | 8 |
| Cardiospermum corindum | L. | Sapindaceae | 8 |
| Cardiospermum grandiflorum | Sw. | Sapindaceae | 8 |
| Cardiospermum halicacabum | L. | Sapindaceae | 8 |
| Carex excelsa | Poepp. ex Kunth | Cyperaceae | 8 |
| Carex fecunda | Steud. | Cyperaceae | 8 |
| Carex gayana | Desv. | Cyperaceae | 8 |
| Carex hamata | Sw. | Cyperaceae | 8 |
| Carex macloviana | d'Urv. | Cyperaceae | 8 |
| Carex melanocystis | É.Desv. | Cyperaceae | 8 |
| Carex microglochin | Wahlenb. | Cyperaceae | 8 |
| Carex phleoides | Cav. | Cyperaceae | 8 |
| Carex polystachya | Sw. ex Wahlenb. | Cyperaceae | 8 |
| Casearia sylvestris | Sw. | Salicaceae | 8 |
| Castela coccinea | Griseb. | Simaroubaceae | 8 |
| Castela tweediei | Planch. | Simaroubaceae | 8 |
| Castilleja arvensis | Schltdl. & Cham. | Orobanchaceae | 8 |
| Cayaponia bonariensis | (Mill.) Mart.Crov. | Cucurbitaceae | 8 |
| Cayaponia citrullifolia | (Griseb.) Cogn. ex Griseb. | Cucurbitaceae | 8 |
| Cayaponia podantha | Cogn. | Cucurbitaceae | 8 |
| Ceiba chodatii | (Hassl.) Ravenna | Malvaceae | 8 |
| Celtis iguanaea | (Jacq.) Sarg. | Cannabaceae | 8 |
| Celtis pallida | Torr. | Cannabaceae | 8 |
| Celtis tala | Gillies ex Planch. | Cannabaceae | 8 |
| Cenchrus echinatus | L. | Poaceae | 8 |
| Cenchrus latifolius | (Spreng.) Morrone | Poaceae | 8 |
| Cenchrus myosuroides | Kunth | Poaceae | 8 |
| Cenchrus spinifex | Cav. | Poaceae | 8 |
| Centella erecta | (L.f.) Fernald | Apiaceae | 8 |
| Centrosema virginianum | (L.) Benth. | Fabaceae | 8 |
| Ceratophyllum demersum | L. | Ceratophyllaceae | 8 |
| Cereus aethiops | Haw. | Cactaceae | 8 |
| Cereus forbesii | C.F.Först. | Cactaceae | 8 |
| Cestrum parqui | (Lam.) L'Hér. | Solanaceae | 8 |
| Cestrum strigilatum | Ruiz & Pav. | Solanaceae | 8 |
| Chaetanthera chilensis | (Willd.) DC. | Asteraceae | 8 |
| Chaetanthera euphrasioides | F.Meigen | Asteraceae | 8 |
| Chaetanthera lanata | I.M.Johnst. | Asteraceae | 8 |
| Chaetanthera lycopodioides | (J.Rémy) Cabrera ex Cabrera | Asteraceae | 8 |
| Chaetanthera villosa | D.Don | Asteraceae | 8 |
| Chamaecrista calycioides | (DC. ex Collad.) Greene | Fabaceae | 8 |
| Chamaecrista nictitans | (L.) Moench | Fabaceae | 8 |
| Chamissoa altissima | Kunth | Amaranthaceae | 8 |
| Chaptalia exscapa | (Pers.) Baker | Asteraceae | 8 |
| Chaptalia integerrima | (Vell.) Burkart | Asteraceae | 8 |
| Chaptalia nutans | (L.) Pol. | Asteraceae | 8 |
| Chascolytrum subaristatum | (Lam.) Desv. | Poaceae | 8 |
| Chiliotrichum diffusum | (G.Forst.) Kuntze | Asteraceae | 8 |
| Chiococca alba | (L.) Hitchc. | Rubiaceae | 8 |
| Chiropetalum griseum | Griseb. | Euphorbiaceae | 8 |
| Chloris pycnothrix | Trin. | Poaceae | 8 |
| Chloris virgata | Sw. | Poaceae | 8 |
| Chromolaena hookeriana | (Griseb.) R.M.King & H.Rob. | Asteraceae | 8 |
| Chromolaena laevigata | (Lam.) R.M.King & H.Rob. | Asteraceae | 8 |
| Chromolaena odorata | (L.) R.M.King & H.Rob. | Asteraceae | 8 |
| Chrysolaena flexuosa | (Sims) H.Rob. | Asteraceae | 8 |
| Chuquiraga avellanedae | Lorentz | Asteraceae | 8 |
| Chuquiraga calchaquina | Cabrera | Asteraceae | 8 |
| Chuquiraga erinacea | D.Don | Asteraceae | 8 |
| Chuquiraga oppositifolia | D.Don | Asteraceae | 8 |
| Cienfuegosia drummondii | (A.Gray) Lewton | Malvaceae | 8 |
| Cinnagrostis viridiflavescens | (Poir.) P.M.Peterson, Soreng, Romasch. & Barberá | Poaceae | 8 |
| Cissampelos pareira | L. | Menispermaceae | 8 |
| Cissus palmata | Poir. | Vitaceae | 8 |
| Cissus verticillata | (L.) Nicolson & C.E.Jarvis | Vitaceae | 8 |
| Cladium mariscus | (L.) Pohl | Cyperaceae | 8 |
| Cleistocactus baumannii | (Lem.) Lem. | Cactaceae | 8 |
| Cleistocactus smaragdiflorus | (F.A.C.Weber) Britton & Rose | Cactaceae | 8 |
| Clematicissus striata | (Ruiz & Pav.) Lombardi | Vitaceae | 8 |
| Clematis campestris | A.St.-Hil. | Ranunculaceae | 8 |
| Clematis haenkeana | C.Presl | Ranunculaceae | 8 |
| Cleome cordobensis | Eichler ex Griseb. | Cleomaceae | 8 |
| Clethra scabra | Pers. | Clethraceae | 8 |
| Clinopodium bolivianum | (Benth.) Kuntze | Lamiaceae | 8 |
| Cnicothamnus lorentzii | Griseb. | Asteraceae | 8 |
| Cnidoscolus urens | (L.) Arthur | Euphorbiaceae | 8 |
| Coccocypselum lanceolatum | (Ruiz & Pav.) Pers. | Rubiaceae | 8 |
| Cochliasanthus caracalla | (L.) Trew | Fabaceae | 8 |
| Collaea argentina | Griseb. | Fabaceae | 8 |
| Colletia spinosissima | J.F.Gmel. | Rhamnaceae | 8 |
| Colliguaja integerrima | Gillies & Hook. | Euphorbiaceae | 8 |
| Collomia biflora | (Ruiz & Pav.) Brand | Polemoniaceae | 8 |
| Colobanthus quitensis | (Kunth) Bartl. | Caryophyllaceae | 8 |
| Colobanthus subulatus | (d'Urv.) Hook.f. | Caryophyllaceae | 8 |
| Cologania broussonetii | (Balb.) DC. | Fabaceae | 8 |
| Commelina erecta | L. | Commelinaceae | 8 |
| Commelina longicaulis | Jacq. | Commelinaceae | 8 |
| Commelina obliqua | Vahl | Commelinaceae | 8 |
| Commelina tuberosa | L. | Commelinaceae | 8 |
| Condalia microphylla | Cav. | Rhamnaceae | 8 |
| Convolvulus bonariensis | Cav. | Convolvulaceae | 8 |
| Convolvulus crenatifolius | Ruiz & Pav. | Convolvulaceae | 8 |
| Convolvulus hermanniae | L'Hér. | Convolvulaceae | 8 |
| Conyza laevigata | (Rich.) Pruski | Asteraceae | 8 |
| Cordia alliodora | (Ruiz & Pav.) Oken | Cordiaceae | 8 |
| Cortaderia hieronymi | (Kuntze) N.P.Barker & H.P.Linder | Poaceae | 8 |
| Cortaderia jubata | (Lemoine) Stapf | Poaceae | 8 |
| Cortaderia selloana | (Schult. & Schult.f.) Asch. & Graebn. | Poaceae | 8 |
| Cottea pappophoroides | Kunth | Poaceae | 8 |
| Cotula mexicana | (DC.) Cabrera | Asteraceae | 8 |
| Cranichis ciliata | Kunth | Orchidaceae | 8 |
| Craniolaria integrifolia | Cham. | Martyniaceae | 8 |
| Crassula connata | A.Berger | Crassulaceae | 8 |
| Cressa truxillensis | Kunth | Convolvulaceae | 8 |
| Crotalaria incana | L. | Fabaceae | 8 |
| Crotalaria micans | Link | Fabaceae | 8 |
| Crotalaria pumila | Ortega | Fabaceae | 8 |
| Crotalaria sagittalis | L. | Fabaceae | 8 |
| Croton bonplandianus | Baill. | Euphorbiaceae | 8 |
| Croton gracilipes | Baill. | Euphorbiaceae | 8 |
| Croton hirtus | L'Hér. | Euphorbiaceae | 8 |
| Croton lanatus | Lam. | Euphorbiaceae | 8 |
| Croton subpannosus | Griseb. | Euphorbiaceae | 8 |
| Cruckshanksia hymenodon | Hook. & Arn. | Rubiaceae | 8 |
| Cruckshanksia macrantha | Phil. | Rubiaceae | 8 |
| Cryptantha maritima | (Greene) Greene | Boraginaceae | 8 |
| Cuatrecasasiella argentina | (Cabrera) H.Rob. | Asteraceae | 8 |
| Cucurbita maxima | Duchesne | Cucurbitaceae | 8 |
| Cucurbitella asperata | (Gillies ex Hook. & Arn.) Walp. | Cucurbitaceae | 8 |
| Cumulopuntia chichensis | (Cárdenas) E.F.Anderson | Cactaceae | 8 |
| Cupania vernalis | Cambess. | Sapindaceae | 8 |
| Cuphea carthagenensis | (Jacq.) J.F.Macbr. | Lythraceae | 8 |
| Cuphea cordata | Ruiz & Pav. | Lythraceae | 8 |
| Cuphea glutinosa | Cham. & Schltdl. | Lythraceae | 8 |
| Cuphea racemosa | (L.f.) Spreng. | Lythraceae | 8 |
| Cybistax antisyphilitica | (Mart.) Mart. | Bignoniaceae | 8 |
| Cyclolepis genistoides | Gillies ex D.Don | Asteraceae | 8 |
| Cyclopogon elatus | (Sw.) Schltr. | Orchidaceae | 8 |
| Cyclosorus interruptus | (Willd.) H.Itô | Thelypteridaceae | 8 |
| Cyclospermum leptophyllum | (Pers.) Sprague | Apiaceae | 8 |
| Cynanchum montevidense | Spreng. | Apocynaceae | 8 |
| Cyperus aggregatus | (Willd.) Endl. | Cyperaceae | 8 |
| Cyperus articulatus | L. | Cyperaceae | 8 |
| Cyperus bipartitus | Torr. | Cyperaceae | 8 |
| Cyperus brevifolius | (Rottb.) Hassk. | Cyperaceae | 8 |
| Cyperus distans | L.f. | Cyperaceae | 8 |
| Cyperus entrerianus | Boeckeler | Cyperaceae | 8 |
| Cyperus eragrostis | Lam. | Cyperaceae | 8 |
| Cyperus esculentus | L. | Cyperaceae | 8 |
| Cyperus giganteus | Vahl | Cyperaceae | 8 |
| Cyperus hermaphroditus | (Jacq.) Standl. | Cyperaceae | 8 |
| Cyperus laevigatus | L. | Cyperaceae | 8 |
| Cyperus luzulae | (L.) Retz. | Cyperaceae | 8 |
| Cyperus manimae | Kunth | Cyperaceae | 8 |
| Cyperus melanostachyus | Kunth | Cyperaceae | 8 |
| Cyperus meyenianus | Kunth | Cyperaceae | 8 |
| Cyperus ochraceus | Vahl | Cyperaceae | 8 |
| Cyperus odoratus | L. | Cyperaceae | 8 |
| Cyperus oxylepis | Nees ex Steud. | Cyperaceae | 8 |
| Cyperus polystachyos | Rottb. | Cyperaceae | 8 |
| Cyperus prolixus | Kunth | Cyperaceae | 8 |
| Cyperus seslerioides | Kunth | Cyperaceae | 8 |
| Cyperus sesquiflorus | (Torr.) Mattf. & Kük. | Cyperaceae | 8 |
| Cyperus squarrosus | L. | Cyperaceae | 8 |
| Cyperus surinamensis | Rottb. | Cyperaceae | 8 |
| Cyperus virens | Michx. | Cyperaceae | 8 |
| Dalea elegans | Gillies ex Hook. | Fabaceae | 8 |
| Dalea leporina | (Aiton) Bullock | Fabaceae | 8 |
| Dalechampia scandens | L. | Euphorbiaceae | 8 |
| Daucus pusillus | Michx. | Apiaceae | 8 |
| Delilia biflora | Kuntze | Asteraceae | 8 |
| Denmoza rhodacantha | (Salm-Dyck) Britton & Rose | Cactaceae | 8 |
| Dennstaedtia glauca | C.Chr. ex Looser | Dennstaedtiaceae | 8 |
| Deschampsia antarctica | É.Desv. | Poaceae | 8 |
| Descurainia erodiifolia | (Phil.) Reiche | Brassicaceae | 8 |
| Descurainia pimpinellifolia | (Barnéoud) O.E.Schulz | Brassicaceae | 8 |
| Desmanthus acuminatus | Benth. | Fabaceae | 8 |
| Desmanthus virgatus | (L.) Willd. | Fabaceae | 8 |
| Desmodium incanum | (Sw.) DC. | Fabaceae | 8 |
| Desmodium procumbens | (Mill.) C.L.Hitchc. | Fabaceae | 8 |
| Desmodium tortuosum | (Sw.) DC. | Fabaceae | 8 |
| Desmodium uncinatum | (Jacq.) DC. | Fabaceae | 8 |
| Deuterocohnia longipetala | (Baker) Mez | Bromeliaceae | 8 |
| Dianthera comata | L. | Acanthaceae | 8 |
| Diastatea micrantha | (Kunth) McVaugh | Campanulaceae | 8 |
| Dichanthelium commutatum | (Schult.) Gould | Poaceae | 8 |
| Dichondra argentea | Humb. & Bonpl. ex Willd. | Convolvulaceae | 8 |
| Dichondra microcalyx | (Hallier f.) Fabris | Convolvulaceae | 8 |
| Dichondra sericea | Sw. | Convolvulaceae | 8 |
| Dichorisandra hexandra | (Aubl.) Standl. | Commelinaceae | 8 |
| Dicliptera squarrosa | Nees | Acanthaceae | 8 |
| Digitaria californica | (Benth.) Henrard | Poaceae | 8 |
| Digitaria filiformis | (L.) Koeler | Poaceae | 8 |
| Digitaria insularis | (L.) Mez ex Ekman | Poaceae | 8 |
| Dioscorea dodecaneura | Vell. | Dioscoreaceae | 8 |
| Diostea juncea | (Gillies & Hook.) Miers | Verbenaceae | 8 |
| Diphasiastrum thyoides | (Willd.) Holub | Lycopodiaceae | 8 |
| Diplachne fusca | (L.) P.Beauv. | Poaceae | 8 |
| Diplolepis nummulariifolia | (Hook. & Arn.) Liede & Rapini | Apocynaceae | 8 |
| Disakisperma dubium | (Kunth) P.M.Peterson & N.Snow | Poaceae | 8 |
| Discaria americana | Gillies & Hook. | Rhamnaceae | 8 |
| Distichia muscoides | Nees & Meyen | Juncaceae | 8 |
| Distichlis humilis | Phil. | Poaceae | 8 |
| Distichlis spicata | (L.) Greene | Poaceae | 8 |
| Distimake aegyptius | (L.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Distimake dissectus | (Jacq.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Ditaxis breviramea | (Müll.Arg.) Pax & K.Hoffm. | Euphorbiaceae | 8 |
| Dodonaea viscosa | Jacq. | Sapindaceae | 8 |
| Dolichandra cynanchoides | Cham. | Bignoniaceae | 8 |
| Dolichandra quadrivalvis | (Jacq.) L.G.Lohmann | Bignoniaceae | 8 |
| Dolichandra unguis-cati | (L.) L.G.Lohmann | Bignoniaceae | 8 |
| Doniophyton weddellii | Katinas & Stuessy | Asteraceae | 8 |
| Doryopteris concolor | (Langsd. & Fisch.) Kuhn & Decken | Pteridaceae | 8 |
| Drymaria glandulosa | Bartl. | Caryophyllaceae | 8 |
| Drymaria villosa | Cham. & Schltdl. | Caryophyllaceae | 8 |
| Dryopteris wallichiana | (Spreng.) Hyl. | Dryopteridaceae | 8 |
| Dunalia brachyacantha | Miers | Solanaceae | 8 |
| Dyschoriste venturii | Leonard | Acanthaceae | 8 |
| Dysphania ambrosioides | (L.) Mosyakin & Clemants | Chenopodiaceae | 8 |
| Dysphania multifida | (L.) Mosyakin & Clemants | Chenopodiaceae | 8 |
| Dyssodia papposa | (Vent.) Hitchc. | Asteraceae | 8 |
| Echinopsis aurea | Britton & Rose | Cactaceae | 8 |
| Eclipta prostrata | (L.) L. | Asteraceae | 8 |
| Ehretia cortesia | Gottschling | Ehretiaceae | 8 |
| Elaphoglossum gayanum | (Fée) T.Moore | Dryopteridaceae | 8 |
| Eleocharis atropurpurea | (Retz.) J.Presl & C.Presl | Cyperaceae | 8 |
| Eleocharis elegans | (Kunth) Roem. & Schult. | Cyperaceae | 8 |
| Eleocharis macrostachya | Britton | Cyperaceae | 8 |
| Eleocharis montana | (Kunth) Roem. & Schult. | Cyperaceae | 8 |
| Eleocharis montevidensis | Kunth | Cyperaceae | 8 |
| Eleocharis quinqueflora | (Hartmann) O.Schwarz | Cyperaceae | 8 |
| Eleocharis rostellata | (Torr.) Torr. | Cyperaceae | 8 |
| Elephantopus mollis | Kunth | Asteraceae | 8 |
| Eleusine tristachya | (Lam.) Lam. | Poaceae | 8 |
| Elionurus muticus | (Spreng.) Kuntze | Poaceae | 8 |
| Elionurus tripsacoides | Willd. | Poaceae | 8 |
| Elytraria imbricata | (Vahl) Pers. | Acanthaceae | 8 |
| Enneapogon desvauxii | P.Beauv. | Poaceae | 8 |
| Enterolobium contortisiliquum | (Vell.) Morong | Fabaceae | 8 |
| Ephedra americana | Humb. & Bonpl. ex Willd. | Ephedraceae | 8 |
| Ephedra chilensis | C.Presl | Ephedraceae | 8 |
| Ephedra ochreata | Miers | Ephedraceae | 8 |
| Ephedra rupestris | Benth. | Ephedraceae | 8 |
| Epidendrum rigidum | Jacq. | Orchidaceae | 8 |
| Epilobium australe | Poepp. & Hausskn. | Onagraceae | 8 |
| Epilobium ciliatum | Raf. | Onagraceae | 8 |
| Epilobium denticulatum | Ruiz & Pav. | Onagraceae | 8 |
| Equisetum bogotense | Kunth | Equisetaceae | 8 |
| Equisetum giganteum | L. | Equisetaceae | 8 |
| Erechtites hieraciifolius | (L.) Raf. ex DC. | Asteraceae | 8 |
| Erigeron bonariensis | L. | Asteraceae | 8 |
| Erigeron floribundus | (Kunth) Sch.Bip. | Asteraceae | 8 |
| Erigeron primulifolium | Juss. ex Cass. | Asteraceae | 8 |
| Erigeron rosulatus | Wedd. | Asteraceae | 8 |
| Erigeron sumatrensis | Retz. | Asteraceae | 8 |
| Erigeron variifolius | S.F.Blake | Asteraceae | 8 |
| Eriolarynx australis | (Griseb.) J.M.H.Shaw | Solanaceae | 8 |
| Erioneuron pilosum | (Buckley) Nash | Poaceae | 8 |
| Eriosyce strausiana | (K.Schum.) Katt. | Cactaceae | 8 |
| Eryngium coronatum | Hook. & Arn. | Apiaceae | 8 |
| Eryngium ebracteatum | Lam. | Apiaceae | 8 |
| Eryngium elegans | Cham. & Schltdl. | Apiaceae | 8 |
| Eryngium horridum | Malme | Apiaceae | 8 |
| Eryngium nudicaule | Lam. | Apiaceae | 8 |
| Erythranthe cuprea | (Dombrain) G.L.Nesom | Phrymaceae | 8 |
| Erythranthe depressa | (Phil.) G.L.Nesom | Phrymaceae | 8 |
| Erythranthe glabrata | (Kunth) G.L.Nesom | Phrymaceae | 8 |
| Erythranthe lutea | (L.) G.L.Nesom | Phrymaceae | 8 |
| Erythrina crista-galli | L. | Fabaceae | 8 |
| Erythrina falcata | Benth. | Fabaceae | 8 |
| Erythrina mulungu | Mart. ex Benth. | Fabaceae | 8 |
| Erythrina poeppigiana | (Walp.) O.F.Cook | Fabaceae | 8 |
| Erythrostemon gilliesii | (Hook.) Klotzsch | Fabaceae | 8 |
| Escallonia cordobensis | (Kuntze) Hosseus | Escalloniaceae | 8 |
| Escallonia myrtilloides | L.f. | Escalloniaceae | 8 |
| Escallonia myrtoidea | Bertero ex DC. | Escalloniaceae | 8 |
| Escallonia virgata | (Ruiz & Pav.) Pers. | Escalloniaceae | 8 |
| Eugenia uniflora | L. | Myrtaceae | 8 |
| Euphorbia berteroana | Balb. ex Spreng. | Euphorbiaceae | 8 |
| Euphorbia eichleri | Müll.Arg. | Euphorbiaceae | 8 |
| Euphorbia graminea | Jacq. | Euphorbiaceae | 8 |
| Euphorbia heterophylla | L. | Euphorbiaceae | 8 |
| Euphorbia hirta | L. | Euphorbiaceae | 8 |
| Euphorbia hypericifolia | L. | Euphorbiaceae | 8 |
| Euphorbia hyssopifolia | L. | Euphorbiaceae | 8 |
| Euphorbia lasiocarpa | Klotzsch | Euphorbiaceae | 8 |
| Euphorbia ophthalmica | Pers. | Euphorbiaceae | 8 |
| Euphorbia oranensis | (Croizat) Subils | Euphorbiaceae | 8 |
| Euphorbia portulacoides | L. | Euphorbiaceae | 8 |
| Euphorbia prostrata | Aiton | Euphorbiaceae | 8 |
| Euphorbia serpens | Kunth | Euphorbiaceae | 8 |
| Euphorbia serpillifolia | Pers. | Euphorbiaceae | 8 |
| Euphorbia thymifolia | L. | Euphorbiaceae | 8 |
| Euploca mendocina | (Phil.) Diane & Hilger | Heliotropiaceae | 8 |
| Euploca procumbens | (Mill.) Diane & Hilger | Heliotropiaceae | 8 |
| Evolvulus alsinoides | (L.) L. | Convolvulaceae | 8 |
| Evolvulus arizonicus | A.Gray | Convolvulaceae | 8 |
| Evolvulus nummularius | (L.) L. | Convolvulaceae | 8 |
| Evolvulus sericeus | Sw. | Convolvulaceae | 8 |
| Evolvulus tenuis | Mart. ex Choisy | Convolvulaceae | 8 |
| Exostigma notobellidiastrum | (Griseb.) G.Sancho | Asteraceae | 8 |
| Fabiana denudata | Miers | Solanaceae | 8 |
| Fabiana imbricata | Ruiz & Pav. | Solanaceae | 8 |
| Facelis retusa | (Lam.) Sch.Bip. | Asteraceae | 8 |
| Festuca chrysophylla | Phil. | Poaceae | 8 |
| Festuca octoflora | Walter | Poaceae | 8 |
| Fimbristylis autumnalis | (L.) Roem. & Schult. | Cyperaceae | 8 |
| Fimbristylis complanata | (Retz.) Link | Cyperaceae | 8 |
| Flaveria bidentis | (L.) Kuntze | Asteraceae | 8 |
| Frangula sphaerosperma | (Sw.) Kartesz & Gandhi | Rhamnaceae | 8 |
| Frankenia triandra | J.Rémy | Frankeniaceae | 8 |
| Fuchsia boliviana | Carrière | Onagraceae | 8 |
| Funastrum clausum | (Jacq.) Schltr. | Apocynaceae | 8 |
| Gaillardia megapotamica | Baker | Asteraceae | 8 |
| Galactia striata | (Jacq.) Urb. | Fabaceae | 8 |
| Galactia texana | (Scheele) A.Gray | Fabaceae | 8 |
| Galinsoga parviflora | Cav. | Asteraceae | 8 |
| Galinsoga quadriradiata | Ruiz & Pav. | Asteraceae | 8 |
| Galium hypocarpium | (L.) Endl. ex Griseb. | Rubiaceae | 8 |
| Gamocarpha scapigera | (J.Rémy) S.Denham & Pozner | Calyceraceae | 8 |
| Gamochaeta americana | (Mill.) Wedd. | Asteraceae | 8 |
| Gamochaeta calviceps | (Fernald) Cabrera | Asteraceae | 8 |
| Gamochaeta pensylvanica | (Willd.) Cabrera | Asteraceae | 8 |
| Gaultheria erecta | Vent. | Ericaceae | 8 |
| Gaultheria myrsinoides | Kunth | Ericaceae | 8 |
| Gaultheria pumila | (L.f.) D.J.Middleton | Ericaceae | 8 |
| Gaya parviflora | (Phil.) Krapov. | Malvaceae | 8 |
| Gentianella magellanica | (Gaudich.) Fabris | Gentianaceae | 8 |
| Gentianella multicaulis | (Gillies ex Griseb.) Fabris | Gentianaceae | 8 |
| Gentianella ottonis | (Phil.) Muñoz | Gentianaceae | 8 |
| Geoffroea decorticans | (Gillies ex Hook. & Arn.) Burkart | Fabaceae | 8 |
| Geranium core-core | Steud. | Geraniaceae | 8 |
| Geranium sessiliflorum | Cav. | Geraniaceae | 8 |
| Gilia crassifolia | Benth. | Polemoniaceae | 8 |
| Gilia laciniata | Ruiz & Pav. | Polemoniaceae | 8 |
| Gilliesia graminea | Lindl. | Amaryllidaceae | 8 |
| Gleditsia amorphoides | (Griseb.) Taub. | Fabaceae | 8 |
| Glinus radiatus | (Ruiz & Pav.) Rohrb. | Molluginaceae | 8 |
| Gloxinia erinoides | (DC.) Roalson & Boggan | Gesneriaceae | 8 |
| Gochnatia glutinosa | D.Don ex Hook. & Arn. | Asteraceae | 8 |
| Gomesa bifolia | (Sims) M.W.Chase & N.H.Williams | Orchidaceae | 8 |
| Gomesa flexuosa | (G.Lodd.) M.W.Chase & N.H.Williams | Orchidaceae | 8 |
| Gomphrena celosioides | Mart. | Amaranthaceae | 8 |
| Gomphrena elegans | Mart. | Amaranthaceae | 8 |
| Gomphrena martiana | Gillies ex Moq. | Amaranthaceae | 8 |
| Gomphrena meyeniana | Walp. | Amaranthaceae | 8 |
| Gomphrena perennis | L. | Amaranthaceae | 8 |
| Gomphrena pulchella | Mart. | Amaranthaceae | 8 |
| Gonolobus rostratus | (Vahl) Schult. | Apocynaceae | 8 |
| Grahamia bracteata | Gillies ex Hook. & Arn. | Anacampserotaceae | 8 |
| Grindelia chiloensis | (Cornel.) Cabrera | Asteraceae | 8 |
| Grindelia pulchella | Dunal | Asteraceae | 8 |
| Guilleminea densa | (Humb. & Bonpl. ex Schult.) Moq. | Amaranthaceae | 8 |
| Guindilia trinervis | Gillies ex Hook. & Arn. | Sapindaceae | 8 |
| Gutierrezia baccharoides | Sch.Bip. | Asteraceae | 8 |
| Gutierrezia gilliesii | Griseb. | Asteraceae | 8 |
| Gymnocalycium gibbosum | (Haw.) Pfeiff. ex Mittler | Cactaceae | 8 |
| Gymnocalycium monvillei | (Lem.) Pfeiff. ex Britton & Rose | Cactaceae | 8 |
| Gymnocalycium pflanzii | (Vaupel) Werderm. | Cactaceae | 8 |
| Gymnocoronis spilanthoides | DC. | Asteraceae | 8 |
| Gynerium sagittatum | (Aubl.) P.Beauv. | Poaceae | 8 |
| Habenaria gourlieana | Gillies ex Lindl. | Orchidaceae | 8 |
| Habenaria hexaptera | Lindl. | Orchidaceae | 8 |
| Habenaria trifida | Kunth | Orchidaceae | 8 |
| Habranthus robustus | Herb. | Amaryllidaceae | 8 |
| Halerpestes cymbalaria | Greene | Ranunculaceae | 8 |
| Halerpestes uniflora | (Phil. ex Reiche) Emadzade, Lehnebach, P.J.Lockh. & Hörandl | Ranunculaceae | 8 |
| Hamadryas delfinii | Phil. ex Reiche | Ranunculaceae | 8 |
| Hamelia patens | Jacq. | Rubiaceae | 8 |
| Handroanthus impetiginosus | (Mart. ex DC.) Mattos | Bignoniaceae | 8 |
| Handroanthus ochraceus | (Cham.) Mattos | Bignoniaceae | 8 |
| Harrisia bonplandii | (Parm. ex Pfeiff.) Britton & Rose | Cactaceae | 8 |
| Harrisia pomanensis | (F.A.C.Weber ex K.Schum.) Britton & Rose | Cactaceae | 8 |
| Heimia salicifolia | Link | Lythraceae | 8 |
| Heliconia farinosa | Raddi | Heliconiaceae | 8 |
| Heliconia subulata | Ruiz & Pav. | Heliconiaceae | 8 |
| Heliocarpus americanus | L. | Malvaceae | 8 |
| Heliotropium amplexicaule | Vahl | Heliotropiaceae | 8 |
| Heliotropium curassavicum | L. | Heliotropiaceae | 8 |
| Heliotropium elongatum | (Lehm.) Gürke | Heliotropiaceae | 8 |
| Heliotropium indicum | L. | Heliotropiaceae | 8 |
| Heliotropium nicotianifolium | Poir. | Heliotropiaceae | 8 |
| Herbertia lahue | (Molina) Goldblatt | Iridaceae | 8 |
| Herbertia pulchella | Sweet | Iridaceae | 8 |
| Herissantia crispa | (L.) Brizicky | Malvaceae | 8 |
| Heteranthera limosa | (Sw.) Willd. | Pontederiaceae | 8 |
| Heteranthera reniformis | Ruiz & Pav. | Pontederiaceae | 8 |
| Heteropogon contortus | (L.) P.Beauv. ex Roem. & Schult. | Poaceae | 8 |
| Heteropogon melanocarpus | (Elliott) Benth. | Poaceae | 8 |
| Heteropterys glabra | Hook. & Arn. | Malpighiaceae | 8 |
| Heterosperma ovatifolium | Cav. | Asteraceae | 8 |
| Hibiscus striatus | Cav. | Malvaceae | 8 |
| Hieronymiella argentina | (Pax) Hunz. & S.C.Arroyo | Amaryllidaceae | 8 |
| Hippeastrum cybister | (Herb.) Benth. ex Baker | Amaryllidaceae | 8 |
| Hippeastrum petiolatum | Pax | Amaryllidaceae | 8 |
| Hippocratea volubilis | L. | Celastraceae | 8 |
| Hoffmannseggia doellii | Phil. | Fabaceae | 8 |
| Hoffmannseggia erecta | Phil. | Fabaceae | 8 |
| Hoffmannseggia glauca | (Ortega) Eifert | Fabaceae | 8 |
| Holocheilus hieracioides | (D.Don) Cabrera | Asteraceae | 8 |
| Hualania colletioides | Phil. | Polygalaceae | 8 |
| Hyalis argentea | D.Don ex Hook. & Arn. | Asteraceae | 8 |
| Hydrocharis laevigata | (Humb. & Bonpl. ex Willd.) Byng & Christenh. | Hydrocharitaceae | 8 |
| Hydrocleys nymphoides | (Humb. & Bonpl. ex Willd.) Buchenau | Alismataceae | 8 |
| Hydrocotyle bonariensis | Comm. ex Lam. | Araliaceae | 8 |
| Hydrocotyle ranunculoides | L.f. | Araliaceae | 8 |
| Hydrocotyle verticillata | Thunb. | Araliaceae | 8 |
| Hydrolea spinosa | L. | Hydroleaceae | 8 |
| Hymenachne amplexicaulis | (Rudge) Nees | Poaceae | 8 |
| Hymenoxys anthemoides | Cass. | Asteraceae | 8 |
| Hypericum connatum | Lam. | Hypericaceae | 8 |
| Hypericum silenoides | Juss. | Hypericaceae | 8 |
| Hypochaeris albiflora | (Kuntze) Azevêdo-Gonç. & Matzenb. | Asteraceae | 8 |
| Hypochaeris chillensis | (Kunth) Britton | Asteraceae | 8 |
| Hypochaeris meyeniana | (Walp.) Benth. & Hook.f. ex Griseb. | Asteraceae | 8 |
| Hypochaeris taraxacoides | Ball | Asteraceae | 8 |
| Hypoxis decumbens | L. | Hypoxidaceae | 8 |
| Hypseocharis pimpinellifolia | J.Rémy | Geraniaceae | 8 |
| Hyptis lappacea | Benth. | Lamiaceae | 8 |
| Hysterionica bakeri | Hicken | Asteraceae | 8 |
| Hysterionica jasionoides | Willd. | Asteraceae | 8 |
| Ibicella lutea | (Lindl.) Van Eselt. | Martyniaceae | 8 |
| Ichnanthus pallens | (Sw.) Munro ex Benth. | Poaceae | 8 |
| Indigofera suffruticosa | Mill. | Fabaceae | 8 |
| Inga edulis | Mart. | Fabaceae | 8 |
| Inga marginata | Willd. | Fabaceae | 8 |
| Ipomoea alba | L. | Convolvulaceae | 8 |
| Ipomoea amnicola | Morong | Convolvulaceae | 8 |
| Ipomoea aristolochiifolia | G.Don | Convolvulaceae | 8 |
| Ipomoea carnea | Jacq. | Convolvulaceae | 8 |
| Ipomoea crinicalyx | S.Moore | Convolvulaceae | 8 |
| Ipomoea dumetorum | Willd. | Convolvulaceae | 8 |
| Ipomoea grandifolia | (Dammer) O'Donell | Convolvulaceae | 8 |
| Ipomoea hederifolia | L. | Convolvulaceae | 8 |
| Ipomoea hieronymi | (Kuntze) O'Donell | Convolvulaceae | 8 |
| Ipomoea indica | (Burm.) Merr. | Convolvulaceae | 8 |
| Ipomoea muricata | (L.) Jacq. | Convolvulaceae | 8 |
| Ipomoea nil | (L.) Roth | Convolvulaceae | 8 |
| Ipomoea platensis | Herb. ex Ker Gawl. | Convolvulaceae | 8 |
| Ipomoea plummerae | A.Gray | Convolvulaceae | 8 |
| Ipomoea pubescens | Lam. | Convolvulaceae | 8 |
| Ipomoea purpurea | (L.) Roth | Convolvulaceae | 8 |
| Ipomoea rubriflora | O'Donell | Convolvulaceae | 8 |
| Iresine diffusa | Humb. & Bonpl. ex Willd. | Amaranthaceae | 8 |
| Isochilus linearis | (Jacq.) R.Br. | Orchidaceae | 8 |
| Isolepis cernua | (Vahl) Roem. & Schult. | Cyperaceae | 8 |
| Jaborosa bergii | Hieron. | Solanaceae | 8 |
| Jaborosa caulescens | Gillies & Hook. | Solanaceae | 8 |
| Jaborosa integrifolia | Lam. | Solanaceae | 8 |
| Jaborosa leucotricha | (Speg.) Hunz. | Solanaceae | 8 |
| Jaborosa reflexa | Phil. | Solanaceae | 8 |
| Jaborosa rotacea | (Lillo) Hunz. & Barboza | Solanaceae | 8 |
| Jacaranda mimosifolia | D.Don | Bignoniaceae | 8 |
| Jacquemontia evolvuloides | Meisn. | Convolvulaceae | 8 |
| Jaegeria hirta | (Lag.) Less. | Asteraceae | 8 |
| Janusia guaranitica | (A.St.-Hil.) A.Juss. | Malpighiaceae | 8 |
| Jarava ichu | Ruiz & Pav. | Poaceae | 8 |
| Jarava leptostachya | (Griseb.) F.Rojas | Poaceae | 8 |
| Jatropha curcas | L. | Euphorbiaceae | 8 |
| Jatropha gossypiifolia | L. | Euphorbiaceae | 8 |
| Jatropha grossidentata | Pax & K.Hoffm. | Euphorbiaceae | 8 |
| Jatropha macrocarpa | Griseb. | Euphorbiaceae | 8 |
| Jodina rhombifolia | (Hook. & Arn.) Hook. & Arn. ex Reissek | Santalaceae | 8 |
| Johnstonella albida | (Kunth) M.E.Mabry & M.G.Simpson | Boraginaceae | 8 |
| Juglans australis | Griseb. | Juglandaceae | 8 |
| Juncus acutus | L. | Juncaceae | 8 |
| Juncus balticus | Willd. | Juncaceae | 8 |
| Juncus biflorus | Elliott | Juncaceae | 8 |
| Juncus bufonius | L. | Juncaceae | 8 |
| Juncus dichotomus | Elliott | Juncaceae | 8 |
| Juncus imbricatus | Laharpe | Juncaceae | 8 |
| Juncus microcephalus | Kunth | Juncaceae | 8 |
| Junellia crithmifolia | (Gillies & Hook.) N.O'Leary & P.Peralta | Verbenaceae | 8 |
| Junellia juniperina | (Lag.) Moldenke | Verbenaceae | 8 |
| Junellia micrantha | (Phil.) Moldenke | Verbenaceae | 8 |
| Junellia minima | (Meyen) Moldenke | Verbenaceae | 8 |
| Junellia seriphioides | (Gillies & Hook.) Moldenke | Verbenaceae | 8 |
| Junellia spathulata | (Gillies & Hook.) Moldenke | Verbenaceae | 8 |
| Jungia polita | Griseb. | Asteraceae | 8 |
| Justicia goudotii | V.A.W.Graham | Acanthaceae | 8 |
| Justicia squarrosa | Griseb. | Acanthaceae | 8 |
| Justicia xylosteoides | Griseb. | Acanthaceae | 8 |
| Kageneckia lanceolata | Ruiz & Pav. | Rosaceae | 8 |
| Kallstroemia tucumanensis | Descole, O'Donell & Lourteig | Zygophyllaceae | 8 |
| Krameria lappacea | (Dombey) Burdet & B.B.Simpson | Krameriaceae | 8 |
| Krapovickasia flavescens | (Cav.) Fryxell | Malvaceae | 8 |
| Lacistema aggregatum | (P.J.Bergius) Rusby | Lacistemataceae | 8 |
| Laennecia sophiifolia | (Kunth) G.L.Nesom | Asteraceae | 8 |
| Lagascea mollis | Cav. | Asteraceae | 8 |
| Lantana achyranthifolia | Desf. | Verbenaceae | 8 |
| Lantana canescens | Kunth | Verbenaceae | 8 |
| Lantana fucata | Lindl. | Verbenaceae | 8 |
| Lantana grisebachii | Stuck. ex Seckt | Verbenaceae | 8 |
| Lantana horrida | Kunth | Verbenaceae | 8 |
| Lantana montevidensis | (Spreng.) Briq. | Verbenaceae | 8 |
| Lantana trifolia | L. | Verbenaceae | 8 |
| Lappula occidentalis | (S.Watson) Greene | Boraginaceae | 8 |
| Larrea cuneifolia | Cav. | Zygophyllaceae | 8 |
| Larrea divaricata | Cav. | Zygophyllaceae | 8 |
| Larrea nitida | Cav. | Zygophyllaceae | 8 |
| Lasiacis divaricata | (L.) Hitchc. | Poaceae | 8 |
| Lathyrus magellanicus | Lam. | Fabaceae | 8 |
| Lecanophora heterophylla | (Cav.) Krapov. | Malvaceae | 8 |
| Leersia hexandra | Sw. | Poaceae | 8 |
| Lemna gibba | L. | Araceae | 8 |
| Lemna minuta | Kunth | Araceae | 8 |
| Lepechinia floribunda | (Benth.) Epling | Lamiaceae | 8 |
| Lepechinia meyenii | (Walp.) Epling | Lamiaceae | 8 |
| Lepidium bonariense | L. | Brassicaceae | 8 |
| Lepidium didymum | L. | Brassicaceae | 8 |
| Lepismium lumbricoides | (Lem.) Barthlott | Cactaceae | 8 |
| Leptochloa crinita | (Lag.) P.M.Peterson & N.Snow | Poaceae | 8 |
| Leptochloa panicea | (Retz.) Ohwi | Poaceae | 8 |
| Leptochloa pluriflora | (E.Fourn.) P.M.Peterson & N.Snow | Poaceae | 8 |
| Leptoglossis linifolia | (Miers) Benth. & Hook.f. ex Griseb. | Solanaceae | 8 |
| Leptospron adenanthum | (G.Mey.) A.Delgado | Fabaceae | 8 |
| Lessingianthus rubricaulis | (Humb. & Bonpl.) H.Rob. | Asteraceae | 8 |
| Leucheria floribunda | DC. | Asteraceae | 8 |
| Leucheria gayana | (J.Rémy) Reiche | Asteraceae | 8 |
| Leucheria rosea | Poepp. ex Less. | Asteraceae | 8 |
| Leucostele atacamensis | (Phil.) Schlumpb. | Cactaceae | 8 |
| Leucostele terscheckii | (J.Parm. ex Pfeiff.) Schlumpb. | Cactaceae | 8 |
| Libidibia paraguariensis | (D.Parodi) G.P.Lewis | Fabaceae | 8 |
| Ligaria cuneifolia | (Ruiz & Pav.) Tiegh. | Loranthaceae | 8 |
| Lilaeopsis carolinensis | J.M.Coult. & Rose | Apiaceae | 8 |
| Lilaeopsis occidentalis | J.M.Coult. & Rose | Apiaceae | 8 |
| Limnocharis flava | (L.) Buchenau | Alismataceae | 8 |
| Limonium brasiliense | (Boiss.) Kuntze | Plumbaginaceae | 8 |
| Limosella australis | R.Br. | Plantaginaceae | 8 |
| Lippia alba | (Mill.) N.E.Br. ex Britton & P.Wilson | Verbenaceae | 8 |
| Lippia junelliana | (Moldenke) Tronc. | Verbenaceae | 8 |
| Lippia turbinata | Griseb. | Verbenaceae | 8 |
| Lithraea molleoides | (Vell.) Engl. | Anacardiaceae | 8 |
| Loasa insons | Poepp. | Loasaceae | 8 |
| Loasa sigmoidea | Urb. & Gilg | Loasaceae | 8 |
| Loasa tricolor | Ker Gawl. | Loasaceae | 8 |
| Lobelia nana | Kunth | Campanulaceae | 8 |
| Lobelia oligophylla | (Wedd.) Lammers | Campanulaceae | 8 |
| Lomariocycas tabularis | (Thunb.) Gasper & A.R.Sm. | Blechnaceae | 8 |
| Lucilia acutifolia | (Poir.) Cass. | Asteraceae | 8 |
| Ludwigia bonariensis | (Micheli) H.Hara | Onagraceae | 8 |
| Ludwigia decurrens | Walter | Onagraceae | 8 |
| Ludwigia grandiflora | (Michx.) Greuter & Burdet | Onagraceae | 8 |
| Ludwigia hexapetala | (Hook. & Arn.) Zardini, H.Y.Gu & P.H.Raven | Onagraceae | 8 |
| Ludwigia longifolia | (DC.) H.Hara | Onagraceae | 8 |
| Ludwigia peploides | (Kunth) P.H.Raven | Onagraceae | 8 |
| Ludwigia peruviana | (L.) H.Hara | Onagraceae | 8 |
| Lupinus microcarpus | Sims | Fabaceae | 8 |
| Lycium americanum | Jacq. | Solanaceae | 8 |
| Lycium boerhaviifolium | L.f. | Solanaceae | 8 |
| Lycium cestroides | Schltdl. | Solanaceae | 8 |
| Lycium chanar | Phil. | Solanaceae | 8 |
| Lycium chilense | Bertero | Solanaceae | 8 |
| Lycium ciliatum | Schltdl. | Solanaceae | 8 |
| Lycium infaustum | Miers | Solanaceae | 8 |
| Lycium tenuispinosum | Miers | Solanaceae | 8 |
| Lysimachia amoena | (Sol. ex Gaertn.) Hassemer, Funez & R.Trevis. | Primulaceae | 8 |
| Lysimachia minima | (L.) U.Manns & Anderb. | Primulaceae | 8 |
| Lythrum maritimum | Kunth | Lythraceae | 8 |
| Maclura tinctoria | (L.) D.Don ex G.Don | Moraceae | 8 |
| Macroptilium bracteatum | (Nees & Mart.) Maréchal & Baudet | Fabaceae | 8 |
| Macroptilium prostratum | (Benth.) Urb. | Fabaceae | 8 |
| Madia sativa | Molina | Asteraceae | 8 |
| Maihuenia patagonica | (Phil.) Britton & Rose | Cactaceae | 8 |
| Maihueniopsis glomerata | (Haw.) R.Kiesling | Cactaceae | 8 |
| Maihueniopsis hickenii | (Britton & Rose) D.R.Hunt | Cactaceae | 8 |
| Maihueniopsis molfinoi | Speg. | Cactaceae | 8 |
| Maihueniopsis ovata | (Pfeiff.) F.Ritter | Cactaceae | 8 |
| Maihueniopsis platyacantha | (Pfeiff.) D.R.Hunt | Cactaceae | 8 |
| Malesherbia lactea | Phil. | Passifloraceae | 8 |
| Malesherbia lirana | Gay | Passifloraceae | 8 |
| Malvastrum coromandelianum | (L.) Garcke | Malvaceae | 8 |
| Malvella leprosa | (Ortega) Krapov. | Malvaceae | 8 |
| Mandevilla laxa | (Ruiz & Pav.) Woodson | Apocynaceae | 8 |
| Mandevilla pentlandiana | Woodson | Apocynaceae | 8 |
| Mandevilla petraea | (A.St.-Hil.) Pichon | Apocynaceae | 8 |
| Manettia cordifolia | Mart. | Rubiaceae | 8 |
| Manihot grahamii | Hook. | Euphorbiaceae | 8 |
| Margyricarpus pinnatus | (Lam.) Kuntze | Rosaceae | 8 |
| Maytenus boaria | Molina | Celastraceae | 8 |
| Maytenus ilicifolia | Mart. ex Reissek | Celastraceae | 8 |
| Maytenus spinosa | (Griseb.) Lourteig & O'Donell | Celastraceae | 8 |
| Maytenus vitis-idaea | Griseb. | Celastraceae | 8 |
| Mecardonia procumbens | (Mill.) Small | Plantaginaceae | 8 |
| Melanthera latifolia | (Gardner) Cabrera | Asteraceae | 8 |
| Melica macra | Nees | Poaceae | 8 |
| Melochia pyramidata | L. | Malvaceae | 8 |
| Melosperma andicola | Benth. | Plantaginaceae | 8 |
| Melothria pendula | L. | Cucurbitaceae | 8 |
| Meniscium serratum | Cav. | Thelypteridaceae | 8 |
| Menodora decemfida | (Gillies ex Hook. & Arn.) A.Gray | Oleaceae | 8 |
| Menodora integrifolia | (Cham. & Schltdl.) Steud. | Oleaceae | 8 |
| Menonvillea cuneata | (Gillies & Hook.) Rollins | Brassicaceae | 8 |
| Mentzelia albescens | (Gillies ex Arn.) Benth. & Hook.f. ex Griseb. | Loasaceae | 8 |
| Mentzelia aspera | L. | Loasaceae | 8 |
| Mentzelia parvifolia | Urb. & Gilg ex Kurtz | Loasaceae | 8 |
| Mentzelia scabra | Kunth | Loasaceae | 8 |
| Mentzelia solieri | (Gay) Urb. & Gilg | Loasaceae | 8 |
| Mesechites trifidus | (Jacq.) Müll.Arg. | Apocynaceae | 8 |
| Miconia calvescens | DC. | Melastomataceae | 8 |
| Micranthemum umbrosum | (J.F.Gmel.) S.F.Blake | Linderniaceae | 8 |
| Microgramma mortoniana | de la Sota | Polypodiaceae | 8 |
| Microgramma squamulosa | (Kaulf.) de la Sota | Polypodiaceae | 8 |
| Microsteris gracilis | (Hook.) Greene | Polemoniaceae | 8 |
| Mikania cordifolia | (L.f.) Willd. | Asteraceae | 8 |
| Mikania micrantha | Kunth | Asteraceae | 8 |
| Mikania periplocifolia | Hook. & Arn. | Asteraceae | 8 |
| Mimosa strigillosa | Torr. & A.Gray | Fabaceae | 8 |
| Mimosa velloziana | Mart. | Fabaceae | 8 |
| Mionandra argentea | Griseb. | Malpighiaceae | 8 |
| Mirabilis ovata | F.Meigen | Nyctaginaceae | 8 |
| Mitracarpus hirtus | (L.) DC. | Rubiaceae | 8 |
| Mniodes kunthiana | (DC.) S.E.Freire, Chemisquy, Anderb. & Urtubey | Asteraceae | 8 |
| Mniodes pickeringii | (A.Gray) S.E.Freire, Chemisquy, Anderb. & Urtubey | Asteraceae | 8 |
| Mniodes piptolepis | (Wedd.) S.E.Freire, Chemisquy, Anderb. & Urtubey | Asteraceae | 8 |
| Modiola caroliniana | (L.) G.Don | Malvaceae | 8 |
| Modiolastrum gilliesii | (Steud.) Krapov. | Malvaceae | 8 |
| Modiolastrum malvifolium | (Griseb.) K.Schum. | Malvaceae | 8 |
| Mollugo verticillata | L. | Molluginaceae | 8 |
| Monnina dictyocarpa | Griseb. | Polygalaceae | 8 |
| Monnina wrightii | A.Gray | Polygalaceae | 8 |
| Montia fontana | L. | Montiaceae | 8 |
| Montiopsis andicola | (Gillies) D.I.Ford | Montiaceae | 8 |
| Montiopsis gayana | (Barnéoud) D.I.Ford | Montiaceae | 8 |
| Monttea aphylla | (Miers) Hauman | Plantaginaceae | 8 |
| Monttea schickendantzii | Griseb. | Plantaginaceae | 8 |
| Morisonia atamisquea | (Kuntze) Christenh. & Byng | Capparaceae | 8 |
| Morisonia flexuosa | L. | Capparaceae | 8 |
| Morisonia speciosa | (Griseb.) Christenh. & Byng | Capparaceae | 8 |
| Morisonia tweedieana | (Eichler) Christenh. & Byng | Capparaceae | 8 |
| Muehlenbeckia hastulata | (Sm.) I.M.Johnst. | Polygonaceae | 8 |
| Muehlenbeckia sagittifolia | (Ortega) Meisn. | Polygonaceae | 8 |
| Muehlenbeckia tamnifolia | (Kunth) Meisn. | Polygonaceae | 8 |
| Muhlenbergia alopecuroides | (Griseb.) P.M.Peterson & Columbus | Poaceae | 8 |
| Muhlenbergia arenicola | Buckley | Poaceae | 8 |
| Muhlenbergia asperifolia | (Nees & Meyen ex Trin.) Parodi | Poaceae | 8 |
| Muhlenbergia paniculata | (Nutt.) P.M.Peterson | Poaceae | 8 |
| Muhlenbergia peruviana | (P.Beauv.) Steud. | Poaceae | 8 |
| Muhlenbergia phalaroides | (Kunth) P.M.Peterson | Poaceae | 8 |
| Muhlenbergia rigida | (Kunth) Kunth | Poaceae | 8 |
| Muhlenbergia schreberi | J.F.Gmel. | Poaceae | 8 |
| Muhlenbergia torreyi | (Kunth) Hitchc. ex Bush | Poaceae | 8 |
| Mulguraea aspera | (Gillies & Hook.) N.O'Leary & P.Peralta | Verbenaceae | 8 |
| Muntingia calabura | L. | Muntingiaceae | 8 |
| Mutisia acuminata | Ruiz & Pav. | Asteraceae | 8 |
| Mutisia orbignyana | Wedd. | Asteraceae | 8 |
| Mutisia retrorsa | Cav. | Asteraceae | 8 |
| Mutisia sinuata | Cav. | Asteraceae | 8 |
| Myrcianthes cisplatensis | (Cambess.) O.Berg | Myrtaceae | 8 |
| Myrcianthes pungens | (O.Berg) D.Legrand | Myrtaceae | 8 |
| Myriophyllum aquaticum | (Vell.) Verdc. | Haloragaceae | 8 |
| Myriophyllum quitense | Kunth | Haloragaceae | 8 |
| Myriopteris aurea | (Poir.) Grusz & Windham | Pteridaceae | 8 |
| Myriopteris microphylla | (Sw.) Grusz & Windham | Pteridaceae | 8 |
| Myriopteris myriophylla | J.Sm. | Pteridaceae | 8 |
| Myriopus rubicundus | (Salzm. ex DC.) Luebert | Heliotropiaceae | 8 |
| Myriopus salzmannii | (DC.) Diane & Hilger | Heliotropiaceae | 8 |
| Myrrhinium atropurpureum | Schott | Myrtaceae | 8 |
| Myrsine coriacea | (Sw.) R.Br. ex Roem. & Schult. | Primulaceae | 8 |
| Myrsine laetevirens | (Mez) Arechav. | Primulaceae | 8 |
| Najas guadalupensis | (Spreng.) Magnus | Hydrocharitaceae | 8 |
| Najas marina | L. | Hydrocharitaceae | 8 |
| Nama dichotoma | (Ruiz & Pav.) Choisy | Namaceae | 8 |
| Nama jamaicensis | L. | Namaceae | 8 |
| Nanogalactia heterophylla | (Gillies ex Hook.) L.P.Queiroz | Fabaceae | 8 |
| Nassauvia axillaris | D.Don | Asteraceae | 8 |
| Nassauvia cumingii | Hook. & Arn. | Asteraceae | 8 |
| Nassauvia glomerulosa | (Lag. ex Lindl.) D.Don ex Ball | Asteraceae | 8 |
| Nassauvia lagascae | (D.Don) F.Meigen | Asteraceae | 8 |
| Nassauvia revoluta | D.Don | Asteraceae | 8 |
| Nassella neesiana | (Trin. & Rupr.) Barkworth | Poaceae | 8 |
| Nassella tenuissima | (Trin.) Barkworth | Poaceae | 8 |
| Nassella trichotoma | (Nees) Hack. & Arechav. | Poaceae | 8 |
| Neltuma alba | (Griseb.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma alpataco | (Phil.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma caldenia | (Burkart) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma chilensis | (Molina) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma denudans | (Benth.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma flexuosa | (DC.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma kuntzei | (Harms) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma nigra | (Griseb.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma ruscifolia | (Griseb.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma sericantha | (Gillies ex Hook.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neoblechnum brasiliense | (Desv.) Gasper & V.A.O.Dittrich | Blechnaceae | 8 |
| Neptunia pubescens | Benth. | Fabaceae | 8 |
| Neuontobotrys tarapacanus | (Phil.) Al-Shehbaz | Brassicaceae | 8 |
| Nicandra physalodes | (L.) Gaertn. | Solanaceae | 8 |
| Nicotiana acuminata | (Graham) Hook. | Solanaceae | 8 |
| Nicotiana corymbosa | J.Rémy | Solanaceae | 8 |
| Nicotiana glauca | Graham | Solanaceae | 8 |
| Nicotiana longiflora | Cav. | Solanaceae | 8 |
| Nicotiana noctiflora | Hook. | Solanaceae | 8 |
| Nicotiana otophora | Griseb. | Solanaceae | 8 |
| Nicotiana sylvestris | Speg. | Solanaceae | 8 |
| Nierembergia aristata | D.Don | Solanaceae | 8 |
| Nierembergia browallioides | Griseb. | Solanaceae | 8 |
| Nierembergia linariifolia | Graham | Solanaceae | 8 |
| Nierembergia rigida | Miers | Solanaceae | 8 |
| Nierembergia rivularis | Miers | Solanaceae | 8 |
| Nierembergia tucumanensis | Millán | Solanaceae | 8 |
| Niphidium crassifolium | (L.) Lellinger | Polypodiaceae | 8 |
| Nissolia fruticosa | Jacq. | Fabaceae | 8 |
| Nothoscordum gracile | (Aiton) Stearn | Amaryllidaceae | 8 |
| Noticastrum diffusum | (Pers.) Cabrera | Asteraceae | 8 |
| Noticastrum marginatum | (Kunth) Cuatrec. | Asteraceae | 8 |
| Nuttallanthus canadensis | (L.) D.A.Sutton | Plantaginaceae | 8 |
| Nymphoides humboldtiana | (Kunth) Kuntze | Menyanthaceae | 8 |
| Ochetophila nana | (Clos) Kellermann, Medan & Aagesen | Rhamnaceae | 8 |
| Ochetophila trinervis | (Gillies ex Hook.) Poepp. ex Endl. | Rhamnaceae | 8 |
| Ocimum campechianum | Mill. | Lamiaceae | 8 |
| Ocimum carnosum | (Spreng.) Link & Otto ex Benth. | Lamiaceae | 8 |
| Ocotea puberula | (Rich.) Nees | Lauraceae | 8 |
| Oenothera affinis | Cambess. | Onagraceae | 8 |
| Oenothera indecora | Cambess. | Onagraceae | 8 |
| Oenothera odorata | Jacq. | Onagraceae | 8 |
| Oenothera rosea | Aiton | Onagraceae | 8 |
| Oldenlandiopsis callitrichoides | (Griseb.) Terrell & W.H.Lewis | Rubiaceae | 8 |
| Olsynium acaule | (Klatt) Goldblatt | Iridaceae | 8 |
| Olsynium junceum | (E.Mey. ex C.Presl) Goldblatt | Iridaceae | 8 |
| Onoseris alata | Rusby | Asteraceae | 8 |
| Ophioglossum crotalophoroides | Walter | Ophioglossaceae | 8 |
| Oplismenus compositus | (L.) P.Beauv. | Poaceae | 8 |
| Oplismenus hirtellus | (L.) P.Beauv. | Poaceae | 8 |
| Opuntia elata | Link & Otto ex Salm-Dyck | Cactaceae | 8 |
| Opuntia megapotamica | Arechav. | Cactaceae | 8 |
| Opuntia quimilo | K.Schum. | Cactaceae | 8 |
| Opuntia retrorsa | Speg. | Cactaceae | 8 |
| Opuntia sulphurea | Gillies ex Salm-Dyck | Cactaceae | 8 |
| Oreocereus celsianus | (Lem. ex Salm-Dyck) A.Berger ex Riccob. | Cactaceae | 8 |
| Oreocereus trollii | (Kupper) Backeb. | Cactaceae | 8 |
| Oreopolus glacialis | (Poepp.) Ricardi | Rubiaceae | 8 |
| Orobanche chilensis | (Phil.) Beck | Orobanchaceae | 8 |
| Osmorhiza berteroi | DC. | Apiaceae | 8 |
| Osmunda spectabilis | Willd. | Osmundaceae | 8 |
| Ourisia alpina | Poepp. & Endl. | Plantaginaceae | 8 |
| Ourisia microphylla | Poepp. & Endl. | Plantaginaceae | 8 |
| Oxalis adenophylla | Gillies ex Hook. & Arn. | Oxalidaceae | 8 |
| Oxalis articulata | Savigny | Oxalidaceae | 8 |
| Oxalis bisfracta | Turcz. | Oxalidaceae | 8 |
| Oxalis compacta | Gillies ex Hook. & Arn. | Oxalidaceae | 8 |
| Oxalis conorrhiza | Jacq. | Oxalidaceae | 8 |
| Oxalis erythrorhiza | Gillies ex Hook. & Arn. | Oxalidaceae | 8 |
| Oxalis frutescens | L. | Oxalidaceae | 8 |
| Oxalis latifolia | Kunth | Oxalidaceae | 8 |
| Oxalis laxa | Hook. & Arn. | Oxalidaceae | 8 |
| Oxalis niederleinii | R.Knuth | Oxalidaceae | 8 |
| Oxalis spiralis | Ruiz & Pav. ex G.Don | Oxalidaceae | 8 |
| Oxalis triangularis | A.St.-Hil. | Oxalidaceae | 8 |
| Oxychloe andina | Phil. | Juncaceae | 8 |
| Oxypetalum arnottianum | H.Buek | Apocynaceae | 8 |
| Oxypetalum coccineum | Griseb. | Apocynaceae | 8 |
| Oxytheca dendroidea | Nutt. | Polygonaceae | 8 |
| Pachylaena atriplicifolia | D.Don ex Hook. & Arn. | Asteraceae | 8 |
| Pachystachys dubiosa | (Lindau) A.L.A.Côrtes | Acanthaceae | 8 |
| Palicourea argentinensis | (Bacigalupo) C.M.Taylor | Rubiaceae | 8 |
| Pappophorum mucronulatum | Nees | Poaceae | 8 |
| Pappophorum pappiferum | (Lam.) Kuntze | Poaceae | 8 |
| Pappophorum philippianum | Parodi | Poaceae | 8 |
| Pappostipa speciosa | (Trin. & Rupr.) Romasch. | Poaceae | 8 |
| Parablechnum chilense | (Kaulf.) Gasper & Salino | Blechnaceae | 8 |
| Parasenegalia visco | (Lorentz ex Griseb.) Seigler & Ebinger | Fabaceae | 8 |
| Parastrephia lucida | (Meyen) Cabrera | Asteraceae | 8 |
| Parastrephia quadrangularis | (Meyen) Cabrera | Asteraceae | 8 |
| Parietaria floridana | Nutt. | Urticaceae | 8 |
| Parkinsonia aculeata | L. | Fabaceae | 8 |
| Parkinsonia andicola | (Griseb.) Varjão & Mansano | Fabaceae | 8 |
| Parkinsonia praecox | (Ruiz & Pav.) Hawkins | Fabaceae | 8 |
| Parodia maassii | (Heese) A.Berger | Cactaceae | 8 |
| Parodia mammulosa | (Lem.) N.P.Taylor | Cactaceae | 8 |
| Parthenium hysterophorus | L. | Asteraceae | 8 |
| Paspalum acuminatum | Raddi | Poaceae | 8 |
| Paspalum conjugatum | P.J.Bergius | Poaceae | 8 |
| Paspalum denticulatum | Trin. | Poaceae | 8 |
| Paspalum dilatatum | Poir. | Poaceae | 8 |
| Paspalum distichum | L. | Poaceae | 8 |
| Paspalum mandiocanum | Trin. | Poaceae | 8 |
| Paspalum notatum | Flüggé | Poaceae | 8 |
| Paspalum plicatulum | Michx. | Poaceae | 8 |
| Paspalum quadrifarium | Lam. | Poaceae | 8 |
| Paspalum urvillei | Steud. | Poaceae | 8 |
| Paspalum vaginatum | Sw. | Poaceae | 8 |
| Passiflora caerulea | L. | Passifloraceae | 8 |
| Passiflora cincinnata | Mast. | Passifloraceae | 8 |
| Passiflora foetida | L. | Passifloraceae | 8 |
| Passiflora misera | Kunth | Passifloraceae | 8 |
| Passiflora mooreana | Hook.f. | Passifloraceae | 8 |
| Passiflora morifolia | Mast. | Passifloraceae | 8 |
| Passiflora suberosa | L. | Passifloraceae | 8 |
| Passiflora tucumanensis | Hook. | Passifloraceae | 8 |
| Patosia clandestina | (Phil.) Buchenau | Juncaceae | 8 |
| Pavonia aurigloba | Krapov. | Malvaceae | 8 |
| Pavonia hastata | Cav. | Malvaceae | 8 |
| Pavonia sepium | A.St.-Hil. | Malvaceae | 8 |
| Pectis odorata | Griseb. | Asteraceae | 8 |
| Pectocarya linearis | (Ruiz & Pav.) DC. | Boraginaceae | 8 |
| Pellaea ovata | Weath. | Pteridaceae | 8 |
| Pellaea ternifolia | (Cav.) Link | Pteridaceae | 8 |
| Peperomia increscens | Miq. | Piperaceae | 8 |
| Peperomia pellucida | (L.) Kunth | Piperaceae | 8 |
| Peperomia tetraphylla | (G.Forst.) Hook. & Arn. | Piperaceae | 8 |
| Pereskia sacharosa | Griseb. | Cactaceae | 8 |
| Perezia carthamoides | Hook. & Arn. | Asteraceae | 8 |
| Perezia ciliosa | Reiche | Asteraceae | 8 |
| Perezia coerulescens | Wedd. | Asteraceae | 8 |
| Perezia multiflora | (Bonpl.) Less. | Asteraceae | 8 |
| Perezia pilifera | Hook. & Arn. | Asteraceae | 8 |
| Perezia recurvata | Less. | Asteraceae | 8 |
| Persicaria acuminata | (Kunth) M.Gómez | Polygonaceae | 8 |
| Persicaria glabra | (Willd.) M.Gómez | Polygonaceae | 8 |
| Persicaria hydropiperoides | (Michx.) Small | Polygonaceae | 8 |
| Persicaria punctata | Small | Polygonaceae | 8 |
| Persicaria setacea | Small | Polygonaceae | 8 |
| Petiveria alliacea | L. | Petiveriaceae | 8 |
| Petunia axillaris | (Lam.) Britton, Sterns & Poggenb. | Solanaceae | 8 |
| Pfaffia glomerata | (Spreng.) Pedersen | Amaranthaceae | 8 |
| Pfaffia gnaphalioides | (L.f.) Mart. | Amaranthaceae | 8 |
| Pfeiffera ianthothele | (Monv.) F.A.C.Weber | Cactaceae | 8 |
| Phacelia brachyantha | Benth. | Hydrophyllaceae | 8 |
| Phacelia cumingii | (Benth.) A.Gray | Hydrophyllaceae | 8 |
| Phacelia pinnatifida | Griseb. ex Wedd. | Hydrophyllaceae | 8 |
| Phacelia secunda | J.F.Gmel. | Hydrophyllaceae | 8 |
| Pharus lappulaceus | Aubl. | Poaceae | 8 |
| Phaseolus vulgaris | L. | Fabaceae | 8 |
| Phenax hirtus | (Sw.) Wedd. | Urticaceae | 8 |
| Philibertia gilliesii | Hook. & Arn. | Apocynaceae | 8 |
| Philibertia latiflora | (Griseb.) Goyder | Apocynaceae | 8 |
| Philibertia lysimachioides | (Wedd.) T.Mey. | Apocynaceae | 8 |
| Phlebodium pseudoaureum | (Cav.) Lellinger | Polypodiaceae | 8 |
| Phleum alpinum | L. | Poaceae | 8 |
| Phoradendron bathyoryctum | Eichler | Santalaceae | 8 |
| Phoradendron quadrangulare | (Kunth) Griseb. | Santalaceae | 8 |
| Phragmites australis | (Cav.) Steud. | Poaceae | 8 |
| Phyla nodiflora | (L.) Greene | Verbenaceae | 8 |
| Phyllanthus niruri | L. | Phyllanthaceae | 8 |
| Phylloscirpus deserticola | (Phil.) Dhooge & Goetgh. | Cyperaceae | 8 |
| Physalis angulata | L. | Solanaceae | 8 |
| Physalis pubescens | L. | Solanaceae | 8 |
| Physalis viscosa | L. | Solanaceae | 8 |
| Phytolacca bogotensis | Kunth | Phytolaccaceae | 8 |
| Phytolacca dioica | L. | Phytolaccaceae | 8 |
| Phytolacca octandra | L. | Phytolaccaceae | 8 |
| Phytolacca rivinoides | Kunth & C.D.Bouché | Phytolaccaceae | 8 |
| Picradeniopsis multiflora | (Hook. & Arn.) B.G.Baldwin | Asteraceae | 8 |
| Picrosia longifolia | D.Don | Asteraceae | 8 |
| Pilostyles berteroi | Guill. | Apodanthaceae | 8 |
| Pinnasa bergii | (Hieron.) Weigend & R.H.Acuña | Loasaceae | 8 |
| Piper aduncum | L. | Piperaceae | 8 |
| Piper amalago | L. | Piperaceae | 8 |
| Pisonia aculeata | L. | Nyctaginaceae | 8 |
| Pisoniella arborescens | (Lag. & Rodr.) Standl. | Nyctaginaceae | 8 |
| Pitraea cuneato-ovata | (Cav.) Caro | Verbenaceae | 8 |
| Pityrogramma austroamericana | Domin | Pteridaceae | 8 |
| Pityrogramma calomelanos | (L.) Link | Pteridaceae | 8 |
| Pityrogramma trifoliata | (L.) R.M.Tryon | Pteridaceae | 8 |
| Plantago australis | Lam. | Plantaginaceae | 8 |
| Plantago barbata | G.Forst. | Plantaginaceae | 8 |
| Plantago maritima | L. | Plantaginaceae | 8 |
| Plantago patagonica | Jacq. | Plantaginaceae | 8 |
| Plantago sericea | Ruiz & Pav. | Plantaginaceae | 8 |
| Plantago tomentosa | Lam. | Plantaginaceae | 8 |
| Plantago tubulosa | Decne. | Plantaginaceae | 8 |
| Plazia daphnoides | Wedd. | Asteraceae | 8 |
| Pleopeltis hirsutissima | (Raddi) de la Sota | Polypodiaceae | 8 |
| Pleopeltis macrocarpa | (Bory ex Willd.) Kaulf. | Polypodiaceae | 8 |
| Pleopeltis minima | (Bory) J.Prado & R.Y.Hirai | Polypodiaceae | 8 |
| Pluchea sagittalis | (Lam.) Cabrera | Asteraceae | 8 |
| Plumbago caerulea | Kunth | Plumbaginaceae | 8 |
| Plumbago zeylanica | L. | Plumbaginaceae | 8 |
| Podocarpus parlatorei | Pilg. | Podocarpaceae | 8 |
| Podocoma hieraciifolia | (Poir.) Cass. | Asteraceae | 8 |
| Pogonopus tubulosus | (A.Rich. ex DC.) K.Schum. | Rubiaceae | 8 |
| Poikilacanthus tweedieanus | (Nees) Lindau | Acanthaceae | 8 |
| Poiretia latifolia | Vogel | Fabaceae | 8 |
| Poissonia heterantha | (Griseb.) Lavin | Fabaceae | 8 |
| Poissonia hypoleuca | (Speg.) Lillo | Fabaceae | 8 |
| Polemonium micranthum | Benth. | Polemoniaceae | 8 |
| Polylepis australis | Bitter | Rosaceae | 8 |
| Polypogon interruptus | Kunth | Poaceae | 8 |
| Polystachya concreta | (Jacq.) Garay & H.R.Sweet | Orchidaceae | 8 |
| Polystachya foliosa | (Hook.) Rchb.f. | Orchidaceae | 8 |
| Polystichum plicatum | Hicken ex Hosseus | Dryopteridaceae | 8 |
| Pombalia bigibbosa | (A.St.-Hil.) Paula-Souza | Violaceae | 8 |
| Pombalia communis | (A.St.-Hil.) Paula-Souza | Violaceae | 8 |
| Pombalia parviflora | (L.f.) Paula-Souza | Violaceae | 8 |
| Pontederia cordata | L. | Pontederiaceae | 8 |
| Pontederia crassipes | Mart. | Pontederiaceae | 8 |
| Porophyllum ruderale | (Jacq.) Cass. | Asteraceae | 8 |
| Portulaca amilis | Speg. | Portulacaceae | 8 |
| Portulaca cryptopetala | Speg. | Portulacaceae | 8 |
| Portulaca gilliesii | Hook. | Portulacaceae | 8 |
| Portulaca grandiflora | Hook. | Portulacaceae | 8 |
| Portulaca obtusa | Poelln. | Portulacaceae | 8 |
| Portulaca umbraticola | Kunth | Portulacaceae | 8 |
| Potamogeton pusillus | L. | Potamogetonaceae | 8 |
| Pozoa coriacea | Lag. | Apiaceae | 8 |
| Praxelis clematidea | R.M.King & H.Rob. | Asteraceae | 8 |
| Presliophytum malesherbioides | (Phil.) R.H.Acuña & Weigend | Loasaceae | 8 |
| Pristimera celastroides | (Kunth) A.C.Sm. | Celastraceae | 8 |
| Prosopanche americana | (R.Br.) Baill. | Aristolochiaceae | 8 |
| Proustia cuneifolia | D.Don | Asteraceae | 8 |
| Pseudalbizzia inundata | (Mart.) E.J.M.Koenen & Duno | Fabaceae | 8 |
| Pseudelephantopus spiralis | (Less.) Cronquist | Asteraceae | 8 |
| Pseudognaphalium gaudichaudianum | (DC.) Anderb. | Asteraceae | 8 |
| Pseudogynoxys cabrerae | H.Rob. & Cuatrec. | Asteraceae | 8 |
| Psidium guineense | Sw. | Myrtaceae | 8 |
| Psidium oligospermum | Mart. ex DC. | Myrtaceae | 8 |
| Psidium salutare | (Kunth) O.Berg | Myrtaceae | 8 |
| Psilotum nudum | (L.) P.Beauv. | Psilotaceae | 8 |
| Psychotria carthagenensis | Jacq. | Rubiaceae | 8 |
| Psychrophila sagittata | (Cav.) Bercht. & J.Presl | Ranunculaceae | 8 |
| Pteridium esculentum | (G.Forst.) Cockayne | Dennstaedtiaceae | 8 |
| Pteris deflexa | Link | Pteridaceae | 8 |
| Pterocactus tuberosus | (Pfeiff.) Britton & Rose | Cactaceae | 8 |
| Pterocaulon balansae | Chodat | Asteraceae | 8 |
| Pterocaulon lorentzii | Malme | Asteraceae | 8 |
| Pterocaulon virgatum | (L.) DC. | Asteraceae | 8 |
| Pterogyne nitens | Tul. | Fabaceae | 8 |
| Puya spathacea | (Griseb.) Mez | Bromeliaceae | 8 |
| Pycnophyllum bryoides | Rohrb. | Caryophyllaceae | 8 |
| Pycnophyllum molle | J.Rémy | Caryophyllaceae | 8 |
| Quechuapteris pruinata | (Kaulf.) Windham | Pteridaceae | 8 |
| Quiabentia verticillata | (Vaupel) Vaupel ex A.Berger | Cactaceae | 8 |
| Quinchamalium chilense | Molina | Schoepfiaceae | 8 |
| Ranunculus apiifolius | Pers. | Ranunculaceae | 8 |
| Ranunculus aristatus | (B.Boivin) Christenh. & Byng | Ranunculaceae | 8 |
| Ranunculus fuegianus | Speg. | Ranunculaceae | 8 |
| Ranunculus parviflorus | L. | Ranunculaceae | 8 |
| Ranunculus peduncularis | Sm. | Ranunculaceae | 8 |
| Ranunculus platensis | Spreng. | Ranunculaceae | 8 |
| Ranunculus trichophyllus | Chaix | Ranunculaceae | 8 |
| Rhipsalis baccifera | (Sol. ex J.S.Muell.) Stearn | Cactaceae | 8 |
| Rhipsalis floccosa | Salm-Dyck ex Pfeiff. | Cactaceae | 8 |
| Rhodolirium montanum | Phil. | Amaryllidaceae | 8 |
| Rhynchosia edulis | Griseb. | Fabaceae | 8 |
| Rhynchosia minima | (L.) DC. | Fabaceae | 8 |
| Rhynchosia senna | Gillies ex Hook. & Arn. | Fabaceae | 8 |
| Rhynchosida physocalyx | (A.Gray) Fryxell | Malvaceae | 8 |
| Rhynchospora corymbosa | (L.) Britton | Cyperaceae | 8 |
| Ribes punctatum | Ruiz & Pav. | Grossulariaceae | 8 |
| Richardia brasiliensis | Gomes | Rubiaceae | 8 |
| Richardia scabra | L. | Rubiaceae | 8 |
| Richardia stellaris | (Cham. & Schltdl.) Steud. | Rubiaceae | 8 |
| Rivina humilis | L. | Petiveriaceae | 8 |
| Ruellia brevifolia | (Pohl) C.Ezcurra | Acanthaceae | 8 |
| Ruellia ciliatiflora | Hook. | Acanthaceae | 8 |
| Ruellia erythropus | (Nees) Lindau | Acanthaceae | 8 |
| Ruellia longipedunculata | Lindau | Acanthaceae | 8 |
| Ruellia macrosolen | Lillo ex C.Ezcurra | Acanthaceae | 8 |
| Ruellia morongii | Britton | Acanthaceae | 8 |
| Ruellia simplex | C.Wright | Acanthaceae | 8 |
| Rumex maritimus | L. | Polygonaceae | 8 |
| Ruppia cirrhosa | (Petagna) Grande | Ruppiaceae | 8 |
| Ruppia maritima | L. | Ruppiaceae | 8 |
| Ruprechtia apetala | Wedd. | Polygonaceae | 8 |
| Sacoila lanceolata | (Aubl.) Garay | Orchidaceae | 8 |
| Sagittaria montevidensis | Cham. & Schltdl. | Alismataceae | 8 |
| Salicornia perennis | Mill. | Chenopodiaceae | 8 |
| Salix humboldtiana | Willd. | Salicaceae | 8 |
| Salmonopuntia salmiana | (Pfeiff.) P.V.Heath | Cactaceae | 8 |
| Salpichroa origanifolia | (Lam.) Baill. | Solanaceae | 8 |
| Salpichroa scandens | Dammer | Solanaceae | 8 |
| Salpichroa tristis | Miers | Solanaceae | 8 |
| Salpiglossis sinuata | Ruiz & Pav. | Solanaceae | 8 |
| Salta triflora | (Griseb.) Adr.Sanchez | Polygonaceae | 8 |
| Salvia coccinea | Buc'hoz ex Etl. | Lamiaceae | 8 |
| Salvia cuspidata | Ruiz & Pav. | Lamiaceae | 8 |
| Salvia guaranitica | Dusén | Lamiaceae | 8 |
| Salvia pallida | Benth. | Lamiaceae | 8 |
| Salvia personata | Epling | Lamiaceae | 8 |
| Salvia stachydifolia | Benth. | Lamiaceae | 8 |
| Salvia uliginosa | Benth. | Lamiaceae | 8 |
| Salvinia minima | Baker | Salviniaceae | 8 |
| Sambucus peruviana | Kunth | Viburnaceae | 8 |
| Samolus parviflorus | Raf. | Primulaceae | 8 |
| Sanicula crassicaulis | Poepp. ex DC. | Apiaceae | 8 |
| Sanicula graveolens | Poepp. ex DC. | Apiaceae | 8 |
| Sapindus saponaria | L. | Sapindaceae | 8 |
| Sapium glandulosum | (L.) Morong | Euphorbiaceae | 8 |
| Sapium haematospermum | Müll.Arg. | Euphorbiaceae | 8 |
| Sarcomphalus mistol | (Griseb.) Hauenschild | Rhamnaceae | 8 |
| Saxifraga magellanica | Poir. | Saxifragaceae | 8 |
| Sceptridium australe | (R.Br.) Lyon | Ophioglossaceae | 8 |
| Schaefferia argentinensis | Speg. | Celastraceae | 8 |
| Schinopsis balansae | Engl. | Anacardiaceae | 8 |
| Schinopsis lorentzii | (Griseb.) Engl. | Anacardiaceae | 8 |
| Schinus fasciculata | (Griseb.) I.M.Johnst. | Anacardiaceae | 8 |
| Schinus johnstonii | F.A.Barkley | Anacardiaceae | 8 |
| Schinus longifolia | Speg. | Anacardiaceae | 8 |
| Schinus odonellii | F.A.Barkley | Anacardiaceae | 8 |
| Schinus patagonica | (Phil.) I.M.Johnst. ex Cabrera | Anacardiaceae | 8 |
| Schinus pilifera | I.M.Johnst. | Anacardiaceae | 8 |
| Schinus polygama | (Cav.) Cabrera | Anacardiaceae | 8 |
| Schistocarpha eupatorioides | (Fenzl) Kuntze | Asteraceae | 8 |
| Schizachyrium microstachyum | (Desv.) Roseng., B.R.Arrill. & Izag. | Poaceae | 8 |
| Schizachyrium sanguineum | (Retz.) Alston | Poaceae | 8 |
| Schizanthus grahamii | Gillies | Solanaceae | 8 |
| Schizanthus hookeri | Gillies ex Graham | Solanaceae | 8 |
| Schkuhria pinnata | (Lam.) Kuntze ex Thell. | Asteraceae | 8 |
| Schoenoplectus americanus | (Pers.) Volkart | Cyperaceae | 8 |
| Schoenoplectus californicus | (C.A.Mey.) Soják | Cyperaceae | 8 |
| Schoenoplectus pungens | (Vahl) Palla | Cyperaceae | 8 |
| Schoenoplectus tabernaemontani | (C.C.Gmel.) Palla | Cyperaceae | 8 |
| Scleropogon brevifolius | Phil. | Poaceae | 8 |
| Scoparia dulcis | L. | Plantaginaceae | 8 |
| Scoparia montevidensis | (Spreng.) R.E.Fr. | Plantaginaceae | 8 |
| Scutellaria racemosa | Pers. | Lamiaceae | 8 |
| Scutia buxifolia | Reissek | Rhamnaceae | 8 |
| Sebastiania ramosissima | (A.St.-Hil.) A.L.Melo & M.F.Sales | Euphorbiaceae | 8 |
| Seemannia gymnostoma | (Griseb.) Toursark. | Gesneriaceae | 8 |
| Seemannia nematanthodes | (Kuntze) K.Schum. | Gesneriaceae | 8 |
| Selaginella convoluta | (Arn.) Spring | Selaginellaceae | 8 |
| Selaginella peruviana | Hieron. | Selaginellaceae | 8 |
| Selaginella sellowii | Hieron. | Selaginellaceae | 8 |
| Senecio candollei | Wedd. | Asteraceae | 8 |
| Senecio ceratophylloides | Griseb. | Asteraceae | 8 |
| Senecio clivicola | Wedd. | Asteraceae | 8 |
| Senecio covasii | Cabrera | Asteraceae | 8 |
| Senecio filaginoides | DC. | Asteraceae | 8 |
| Senecio lithostaurus | Cabrera | Asteraceae | 8 |
| Senecio nutans | Sch.Bip. | Asteraceae | 8 |
| Senecio pampeanus | Cabrera | Asteraceae | 8 |
| Senecio patagonicus | Hook. & Arn. | Asteraceae | 8 |
| Senecio scorzonerifolius | Meyen & Walp. | Asteraceae | 8 |
| Senecio serratifolius | (Meyen & Walp.) Cuatrec. | Asteraceae | 8 |
| Senecio subulatus | Don ex Hook. & Arn. | Asteraceae | 8 |
| Senecio subumbellatus | Phil. | Asteraceae | 8 |
| Senegalia bonariensis | (Gillies ex Hook. & Arn.) Seigler & Ebinger | Fabaceae | 8 |
| Senegalia gilliesii | (Steud.) Seigler & Ebinger | Fabaceae | 8 |
| Senegalia praecox | (Griseb.) Seigler & Ebinger | Fabaceae | 8 |
| Senna aphylla | (Cav.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna arnottiana | (Gillies) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna chloroclada | (Harms) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna corymbosa | (Lam.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna crassiramea | (Benth.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna hirsuta | (L.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna morongii | (Britton) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna obtusifolia | (L.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna occidentalis | (L.) Link | Fabaceae | 8 |
| Senna pendula | (Humb. & Bonpl. ex Willd.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Serjania glabrata | Kunth | Sapindaceae | 8 |
| Serjania meridionalis | Cambess. | Sapindaceae | 8 |
| Serpocaulon triseriale | (Sw.) A.R.Sm. | Polypodiaceae | 8 |
| Sesbania virgata | (Cav.) Poir. | Fabaceae | 8 |
| Sesuvium portulacastrum | (L.) L. | Aizoaceae | 8 |
| Setaria leucopila | (Scribn. & Merr.) K.Schum. | Poaceae | 8 |
| Setaria magna | Griseb. | Poaceae | 8 |
| Setaria parviflora | (Poir.) Kerguélen | Poaceae | 8 |
| Sibthorpia repens | (Mutis ex L.) Kuntze | Plantaginaceae | 8 |
| Sicyos malvifolius | Griseb. | Cucurbitaceae | 8 |
| Sida cordifolia | L. | Malvaceae | 8 |
| Sida poeppigiana | (K.Schum.) Fryxell | Malvaceae | 8 |
| Sida spinosa | L. | Malvaceae | 8 |
| Sigesbeckia serrata | DC. | Asteraceae | 8 |
| Silene mandonii | (Rohrb.) Bocquet | Caryophyllaceae | 8 |
| Siphocampylus argentinus | (Griseb.) Hieron. ex E.Wimm. | Campanulaceae | 8 |
| Siphocampylus foliosus | Griseb. | Campanulaceae | 8 |
| Siphocampylus nemoralis | Griseb. | Campanulaceae | 8 |
| Siphocampylus orbignianus | A.DC. | Campanulaceae | 8 |
| Sisyrinchium arenarium | Poepp. | Iridaceae | 8 |
| Sisyrinchium chilense | Hook. | Iridaceae | 8 |
| Sisyrinchium laetum | (Ravenna) J.M.Watson & A.R.Flores | Iridaceae | 8 |
| Sisyrinchium micranthum | Cav. | Iridaceae | 8 |
| Sisyrinchium pachyrhizum | Baker | Iridaceae | 8 |
| Sisyrinchium striatum | Sm. | Iridaceae | 8 |
| Smilax campestris | Griseb. | Smilacaceae | 8 |
| Soehrensia formosa | (Pfeiff.) Backeb. | Cactaceae | 8 |
| Soehrensia schickendantzii | (F.A.C.Weber) Schlumpb. | Cactaceae | 8 |
| Soehrensia spachiana | (Lem.) Schlumpb. | Cactaceae | 8 |
| Solanum abutiloides | (Griseb.) Bitter & Lillo | Solanaceae | 8 |
| Solanum aligerum | Schltdl. | Solanaceae | 8 |
| Solanum americanum | Mill. | Solanaceae | 8 |
| Solanum amygdalifolium | Steud. | Solanaceae | 8 |
| Solanum angustifidum | Bitter | Solanaceae | 8 |
| Solanum betaceum | Cav. | Solanaceae | 8 |
| Solanum chacoense | Bitter | Solanaceae | 8 |
| Solanum elaeagnifolium | Cav. | Solanaceae | 8 |
| Solanum glaucophyllum | Desf. | Solanaceae | 8 |
| Solanum juvenale | Thell. | Solanaceae | 8 |
| Solanum maglia | Schltdl. | Solanaceae | 8 |
| Solanum nitidibaccatum | Bitter | Solanaceae | 8 |
| Solanum palinacanthum | Dunal | Solanaceae | 8 |
| Solanum pilcomayense | Morong | Solanaceae | 8 |
| Solanum pseudocapsicum | L. | Solanaceae | 8 |
| Solanum riparium | Pers. | Solanaceae | 8 |
| Solanum salicifolium | Phil. | Solanaceae | 8 |
| Solanum sarrachoides | Sendtn. | Solanaceae | 8 |
| Solanum schlechtendalianum | Walp. | Solanaceae | 8 |
| Solanum sisymbriifolium | Lam. | Solanaceae | 8 |
| Solanum triflorum | Nutt. | Solanaceae | 8 |
| Solanum tuberosum | L. | Solanaceae | 8 |
| Solidago chilensis | Meyen | Asteraceae | 8 |
| Soliva anthemifolia | (Juss.) Sweet | Asteraceae | 8 |
| Soliva sessilis | Ruiz & Pav. | Asteraceae | 8 |
| Sorghastrum setosum | (Griseb.) Hitchc. | Poaceae | 8 |
| Spathantheum orbignyanum | Schott | Araceae | 8 |
| Spergularia marina | (L.) Besser | Caryophyllaceae | 8 |
| Spergularia villosa | (Pers.) Cambess. | Caryophyllaceae | 8 |
| Spermacoce confusa | Rendle | Rubiaceae | 8 |
| Spermacoce dasycephala | (Cham. & Schltdl.) Delprete | Rubiaceae | 8 |
| Spermacoce densiflora | (DC.) Alain | Rubiaceae | 8 |
| Spermacoce exilis | (L.O.Williams) C.D.Adams ex W.C.Burger & C.M.Taylor | Rubiaceae | 8 |
| Spermacoce remota | Lam. | Rubiaceae | 8 |
| Spermacoce verticillata | L. | Rubiaceae | 8 |
| Sphaeralcea bonariensis | (Cav.) Griseb. | Malvaceae | 8 |
| Sphaeralcea cordobensis | Krapov. | Malvaceae | 8 |
| Sphaeralcea mendocina | Phil. | Malvaceae | 8 |
| Sphaeralcea miniata | (Cav.) Spach | Malvaceae | 8 |
| Spigelia humboldtiana | Cham. & Schltdl. | Loganiaceae | 8 |
| Spirodela punctata | (G.Mey.) C.H.Thomps. | Araceae | 8 |
| Sporobolus indicus | (L.) R.Br. | Poaceae | 8 |
| Sporobolus montevidensis | (Arechav.) P.M.Peterson & Saarela | Poaceae | 8 |
| Sporobolus pyramidatus | (Lam.) Hitchc. | Poaceae | 8 |
| Stachytarpheta cayennensis | (Rich.) Vahl | Verbenaceae | 8 |
| Stanhopea graveolens | Lindl. | Orchidaceae | 8 |
| Stapfochloa canterae | (Arechav.) P.M.Peterson | Poaceae | 8 |
| Stapfochloa ciliata | (Sw.) P.M.Peterson | Poaceae | 8 |
| Steinchisma hians | (Elliott) Nash | Poaceae | 8 |
| Stellaria cuspidata | D.F.K.Schltdl. | Caryophyllaceae | 8 |
| Stemodia verticillata | (Mill.) Hassl. | Plantaginaceae | 8 |
| Stenandrium dulce | (Cav.) Nees | Acanthaceae | 8 |
| Stenotaphrum secundatum | (Walter) Kuntze | Poaceae | 8 |
| Stetsonia coryne | (Salm-Dyck) Britton & Rose | Cactaceae | 8 |
| Strombocarpa ferox | (Griseb.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Strombocarpa strombulifera | (Lam.) A.Gray | Fabaceae | 8 |
| Strombocarpa torquata | (Lag.) Hutch. ex C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Stuckenia filiformis | (Pers.) Börner | Potamogetonaceae | 8 |
| Stylosanthes guianensis | (Aubl.) Sw. | Fabaceae | 8 |
| Stylosanthes scabra | Vogel | Fabaceae | 8 |
| Suaeda divaricata | Moq. | Chenopodiaceae | 8 |
| Synandrospadix vermitoxicus | (Griseb.) Engl. | Araceae | 8 |
| Tabebuia aurea | (Silva Manso) Benth. & Hook.f. ex S.Moore | Bignoniaceae | 8 |
| Tabebuia nodosa | (Griseb.) Griseb. | Bignoniaceae | 8 |
| Tagetes filifolia | Lag. | Asteraceae | 8 |
| Tagetes minuta | L. | Asteraceae | 8 |
| Tagetes multiflora | Kunth | Asteraceae | 8 |
| Talinum fruticosum | (L.) Juss. | Talinaceae | 8 |
| Talinum paniculatum | (Jacq.) Gaertn. | Talinaceae | 8 |
| Talinum polygaloides | Gillies ex Arn. | Talinaceae | 8 |
| Tanaecium dichotomum | (Jacq.) Kaehler & L.G.Lohmann | Bignoniaceae | 8 |
| Tarasa capitata | (Cav.) D.M.Bates | Malvaceae | 8 |
| Tarasa tenella | (Cav.) Krapov. | Malvaceae | 8 |
| Tarenaya aculeata | (L.) Soares Neto & Roalson | Cleomaceae | 8 |
| Tarenaya houtteana | (Schltdl.) Soares Neto & Roalson | Cleomaceae | 8 |
| Tecoma fulva | (Cav.) G.Don | Bignoniaceae | 8 |
| Tecoma stans | (L.) Juss. | Bignoniaceae | 8 |
| Tectaria incisa | Cav. | Tectariaceae | 8 |
| Tephrocactus articulatus | (Pfeiff.) Backeb. | Cactaceae | 8 |
| Tephrocactus molinensis | (Speg.) Backeb. | Cactaceae | 8 |
| Tephrosia cinerea | (L.) Pers. | Fabaceae | 8 |
| Tessaria absinthioides | (Hook. & Arn.) DC. | Asteraceae | 8 |
| Tessaria fastigiata | (Griseb.) Cabrera | Asteraceae | 8 |
| Tetraglochin alata | (Gillies ex Hook. & Arn.) Kuntze | Rosaceae | 8 |
| Tetraglochin cristata | (Britton) Rothm. | Rosaceae | 8 |
| Teucrium cubense | Jacq. | Lamiaceae | 8 |
| Teucrium vesicarium | Mill. | Lamiaceae | 8 |
| Thalia geniculata | L. | Marantaceae | 8 |
| Thelesperma megapotamicum | (Spreng.) Kuntze | Asteraceae | 8 |
| Thymophylla pentachaeta | (DC.) Small | Asteraceae | 8 |
| Tillandsia aeranthos | (Loisel.) Desf. | Bromeliaceae | 8 |
| Tillandsia argentina | C.H.Wright | Bromeliaceae | 8 |
| Tillandsia capillaris | Ruiz & Pav. | Bromeliaceae | 8 |
| Tillandsia didisticha | (É.Morren) Baker | Bromeliaceae | 8 |
| Tillandsia duratii | Vis. | Bromeliaceae | 8 |
| Tillandsia ixioides | Griseb. | Bromeliaceae | 8 |
| Tillandsia loliacea | Mart. ex Schult. & Schult.f. | Bromeliaceae | 8 |
| Tillandsia lorentziana | Griseb. | Bromeliaceae | 8 |
| Tillandsia pedicellata | (Mez) A.Cast. | Bromeliaceae | 8 |
| Tillandsia recurvata | (L.) L. | Bromeliaceae | 8 |
| Tillandsia recurvifolia | Hook. | Bromeliaceae | 8 |
| Tillandsia tenuifolia | L. | Bromeliaceae | 8 |
| Tillandsia tricholepis | Baker | Bromeliaceae | 8 |
| Tillandsia usneoides | (L.) L. | Bromeliaceae | 8 |
| Tillandsia virescens | Ruiz & Pav. | Bromeliaceae | 8 |
| Tinantia erecta | (Jacq.) Fenzl | Commelinaceae | 8 |
| Tipuana tipu | (Benth.) Kuntze | Fabaceae | 8 |
| Tiquilia nuttallii | (Hook.) A.T.Richardson | Ehretiaceae | 8 |
| Tourrettia lappacea | (L'Hér.) Willd. | Bignoniaceae | 8 |
| Tradescantia fluminensis | Vell. | Commelinaceae | 8 |
| Trianthema portulacastrum | L. | Aizoaceae | 8 |
| Trichocline reptans | Hieron. | Asteraceae | 8 |
| Trichogalium corymbosum | (Ruiz & Pav.) Kadereit & Schneew. | Rubiaceae | 8 |
| Trichogalium eriocarpum | (Bartl. ex DC.) Kadereit & Schneew. | Rubiaceae | 8 |
| Trichogalium latoramosum | (Clos) Kadereit & Schneew. | Rubiaceae | 8 |
| Trichostigma octandrum | (L.) H.Walter | Petiveriaceae | 8 |
| Tricomaria usillo | Hook. & Arn. | Malpighiaceae | 8 |
| Tridax procumbens | L. | Asteraceae | 8 |
| Trifolium amabile | Kunth | Fabaceae | 8 |
| Triglochin maritima | L. | Juncaginaceae | 8 |
| Triglochin palustris | L. | Juncaginaceae | 8 |
| Triglochin striata | Ruiz & Pav. | Juncaginaceae | 8 |
| Trihesperus glaucus | (Ruiz & Pav.) Herb. | Asparagaceae | 8 |
| Triodanis perfoliata | (L.) Nieuwl. | Campanulaceae | 8 |
| Tripodanthus acutifolius | (Ruiz & Pav.) Tiegh. | Loranthaceae | 8 |
| Tripodanthus flagellaris | Tiegh. | Loranthaceae | 8 |
| Tripogandra purpurascens | (S.Schauer) Handlos | Commelinaceae | 8 |
| Tripogonella spicata | (Nees) P.M.Peterson & Romasch. | Poaceae | 8 |
| Tristagma patagonicum | (Baker) Traub | Amaryllidaceae | 8 |
| Tristerix verticillatus | (Ruiz & Pav.) Barlow & Wiens | Loranthaceae | 8 |
| Trithrinax campestris | (Burmeist.) Drude & Griseb. | Arecaceae | 8 |
| Triumfetta semitriloba | Jacq. | Malvaceae | 8 |
| Trixis cacalioides | D.Don | Asteraceae | 8 |
| Tropaeolum leptophyllum | G.Don | Tropaeolaceae | 8 |
| Tropaeolum polyphyllum | Cav. | Tropaeolaceae | 8 |
| Tropaeolum tuberosum | Ruiz & Pav. | Tropaeolaceae | 8 |
| Turnera grandiflora | (Urb.) Arbo | Passifloraceae | 8 |
| Turnera sidoides | L. | Passifloraceae | 8 |
| Tweedia brunonis | Hook. & Arn. | Apocynaceae | 8 |
| Typha domingensis | Pers. | Typhaceae | 8 |
| Typha latifolia | L. | Typhaceae | 8 |
| Urera baccifera | (L.) Gaudich. ex Wedd. | Urticaceae | 8 |
| Urera caracasana | (Jacq.) Gaudich. ex Griseb. | Urticaceae | 8 |
| Urmenetea atacamensis | Phil. | Asteraceae | 8 |
| Urochloa platyphylla | (Munro ex C.Wright) R.D.Webster | Poaceae | 8 |
| Urolepis hecatantha | (DC.) R.M.King & H.Rob. | Asteraceae | 8 |
| Urtica chamaedryoides | Pursh | Urticaceae | 8 |
| Urtica flabellata | Kunth | Urticaceae | 8 |
| Urtica gracilis | Aiton | Urticaceae | 8 |
| Urvillea ulmacea | Kunth | Sapindaceae | 8 |
| Utricularia gibba | L. | Lentibulariaceae | 8 |
| Utricularia platensis | Speg. | Lentibulariaceae | 8 |
| Vaccinium floribundum | Kunth | Ericaceae | 8 |
| Vachellia aroma | (Gillies ex Hook. & Arn.) Seigler & Ebinger | Fabaceae | 8 |
| Vachellia caven | (Molina) Seigler & Ebinger | Fabaceae | 8 |
| Vachellia macracantha | (Humb. & Bonpl. ex Willd.) Seigler & Ebinger | Fabaceae | 8 |
| Valeriana carnosa | Sm. | Caprifoliaceae | 8 |
| Valeriana clematitis | Kunth | Caprifoliaceae | 8 |
| Valeriana nivalis | Wedd. | Caprifoliaceae | 8 |
| Valeriana pycnantha | A.Gray | Caprifoliaceae | 8 |
| Valeriana scandens | L. | Caprifoliaceae | 8 |
| Vallea stipularis | L.f. | Elaeocarpaceae | 8 |
| Vallesia glabra | (Cav.) Link | Apocynaceae | 8 |
| Varronia curassavica | Jacq. | Cordiaceae | 8 |
| Varronia dichotoma | Ruiz & Pav. | Cordiaceae | 8 |
| Vasconcellea quercifolia | A.St.-Hil. | Caricaceae | 8 |
| Vassobia breviflora | (Sendtn.) Hunz. | Solanaceae | 8 |
| Verbena araucana | Phil. | Verbenaceae | 8 |
| Verbena aristigera | S.Moore | Verbenaceae | 8 |
| Verbena bonariensis | L. | Verbenaceae | 8 |
| Verbena brasiliensis | Vell. | Verbenaceae | 8 |
| Verbena hispida | Ruiz & Pav. | Verbenaceae | 8 |
| Verbena incompta | P.W.Michael | Verbenaceae | 8 |
| Verbena litoralis | Kunth | Verbenaceae | 8 |
| Verbena mendocina | Phil. | Verbenaceae | 8 |
| Verbena parodii | (Covas & Schnack) Moldenke | Verbenaceae | 8 |
| Verbena peruviana | (L.) Britton | Verbenaceae | 8 |
| Verbena platensis | Spreng. | Verbenaceae | 8 |
| Verbena rigida | Spreng. | Verbenaceae | 8 |
| Verbena tenera | Spreng. | Verbenaceae | 8 |
| Verbena tweedieana | Niven ex Hook. | Verbenaceae | 8 |
| Verbena venturii | Moldenke | Verbenaceae | 8 |
| Verbesina suncho | S.F.Blake | Asteraceae | 8 |
| Vernonanthura nudiflora | (Less.) H.Rob. | Asteraceae | 8 |
| Vernonanthura squamulosa | (Hook. & Arn.) H.Rob. | Asteraceae | 8 |
| Vernonia incana | Less. | Asteraceae | 8 |
| Veronica peregrina | L. | Plantaginaceae | 8 |
| Vigna luteola | (Jacq.) Benth. | Fabaceae | 8 |
| Viguiera tucumanensis | (Hook. & Arn.) Griseb. | Asteraceae | 8 |
| Viola atropurpurea | Leyb. | Violaceae | 8 |
| Viola congesta | Gillies | Violaceae | 8 |
| Viola cotyledon | Ging. | Violaceae | 8 |
| Viola microphylla | Phil. | Violaceae | 8 |
| Viola montagnei | Gay | Violaceae | 8 |
| Viola pygmaea | Juss. ex Poir. | Violaceae | 8 |
| Viola subandina | J.M.Watson | Violaceae | 8 |
| Vittaria lineata | (L.) Sm. | Pteridaceae | 8 |
| Viviania marifolia | Cav. | Francoaceae | 8 |
| Vriesea friburgensis | Mez | Bromeliaceae | 8 |
| Wahlenbergia linarioides | (Lam.) A.DC. | Campanulaceae | 8 |
| Waltheria indica | L. | Malvaceae | 8 |
| Wedelia glauca | (Ortega) Hoffm. | Asteraceae | 8 |
| Wissadula gymnanthemum | (Griseb.) K.Schum. | Malvaceae | 8 |
| Wolffia brasiliensis | Wedd. | Araceae | 8 |
| Wolffia columbiana | H.Karst. | Araceae | 8 |
| Xanthium orientale | L. | Asteraceae | 8 |
| Xanthium spinosum | L. | Asteraceae | 8 |
| Ximenia americana | L. | Olacaceae | 8 |
| Zannichellia palustris | L. | Potamogetonaceae | 8 |
| Zanthoxylum coco | Gillies ex Hook. & Arn. | Rutaceae | 8 |
| Zanthoxylum fagara | Sarg. | Rutaceae | 8 |
| Zanthoxylum petiolare | A.St.-Hil. & Tul. | Rutaceae | 8 |
| Zanthoxylum rhoifolium | Lam. | Rutaceae | 8 |
| Zapoteca formosa | (Kunth) H.M.Hern. | Fabaceae | 8 |
| Zephyranthes andina | (R.E.Fr.) Traub | Amaryllidaceae | 8 |
| Zephyranthes mesochloa | Herb. | Amaryllidaceae | 8 |
| Zinnia peruviana | (L.) L. | Asteraceae | 8 |
| Zornia latifolia | Sm. | Fabaceae | 8 |
| Zuccagnia punctata | Cav. | Fabaceae | 8 |
| Abobra tenuifolia | Naudin | Cucurbitaceae | 7 |
| Arenaria rivularis | Phil. | Caryophyllaceae | 7 |
| Astragalus diminutivus | (Phil.) Gómez-Sosa | Fabaceae | 7 |
| Baccharis retamoides | Phil. | Asteraceae | 7 |
| Blumenbachia latifolia | Cambess. | Loasaceae | 7 |
| Buddleja aromatica | J.Rémy | Scrophulariaceae | 7 |
| Caiophora pulchella | Urb. & Gilg | Loasaceae | 7 |
| Calceolaria parvifolia | Wedd. | Calceolariaceae | 7 |
| Carex bonariensis | Desf. ex Poir. | Cyperaceae | 7 |
| Catasetum macrocarpum | Rich. ex Kunth | Orchidaceae | 7 |
| Centrosema sagittatum | (Humb. & Bonpl. ex Willd.) Brandegee | Fabaceae | 7 |
| Christella hispidula | (Decne.) Holttum | Thelypteridaceae | 7 |
| Chrysanthellum indicum | DC. | Asteraceae | 7 |
| Cinnagrostis recta | (Kunth) P.M.Peterson, Soreng, Romasch. & Barberá | Poaceae | 7 |
| Cinnagrostis vicunarum | (Wedd.) P.M.Peterson, Soreng, Romasch. & Barberá | Poaceae | 7 |
| Commelina elliptica | Kunth | Commelinaceae | 7 |
| Croton hieronymi | Griseb. | Euphorbiaceae | 7 |
| Cyperus hortensis | (Salzm. ex Steud.) Dorr | Cyperaceae | 7 |
| Desmodium cuneatum | Hook. & Arn. | Fabaceae | 7 |
| Desmodium subsericeum | Malme | Fabaceae | 7 |
| Deuterocohnia abstrusa | (A.Cast.) N.Schuetz | Bromeliaceae | 7 |
| Dinoseris salicifolia | Griseb. | Asteraceae | 7 |
| Draba gilliesii | Hook. & Arn. | Brassicaceae | 7 |
| Eleocharis bonariensis | Nees | Cyperaceae | 7 |
| Ephedra triandra | Tul. | Ephedraceae | 7 |
| Eriochloa acuminata | (J.Presl) Kunth | Poaceae | 7 |
| Eryngium agavifolium | Griseb. | Apiaceae | 7 |
| Eudema monimocalyx | (O.E.Schulz) Al-Shehbaz, Salariato, A.Cano & Zuloaga | Brassicaceae | 7 |
| Evolvulus convolvuloides | (Willd.) Stearn | Convolvulaceae | 7 |
| Grimolobium higuerilla | (Gillies ex Hook. & Arn.) A.N.Egan & C.H.Stirt. | Fabaceae | 7 |
| Grindelia brachystephana | Griseb. | Asteraceae | 7 |
| Gutierrezia mandonii | (Sch.Bip.) Solbrig | Asteraceae | 7 |
| Gymnocalycium striglianum | Jeggle ex H.Till | Cactaceae | 7 |
| Gyptis tanacetifolia | (Gillies ex Hook. & Arn.) D.J.N.Hind & Flann | Asteraceae | 7 |
| Hypochaeris hookeri | Phil. | Asteraceae | 7 |
| Ipomoea setosa | Ker Gawl. | Convolvulaceae | 7 |
| Jaborosa kurtzii | Hunz. & Barboza | Solanaceae | 7 |
| Jaborosa laciniata | (Miers) Hunz. & Barboza | Solanaceae | 7 |
| Laennecia artemisiifolia | (Meyen & Walp.) G.L.Nesom | Asteraceae | 7 |
| Latace andina | (Poepp.) Sassone | Amaryllidaceae | 7 |
| Lepidium meyenii | Walp. | Brassicaceae | 7 |
| Leucheria runcinata | D.Don | Asteraceae | 7 |
| Lycium gilliesianum | Miers | Solanaceae | 7 |
| Maihueniopsis clavarioides | (Otto ex Pfeiff.) E.F.Anderson | Cactaceae | 7 |
| Malaxis excavata | (Lindl.) Kuntze | Orchidaceae | 7 |
| Microliabum polymnioides | (R.E.Fr.) H.Rob. | Asteraceae | 7 |
| Morisonia salicifolia | (Griseb.) Christenh. & Byng | Capparaceae | 7 |
| Mutisia subspinosa | Cav. | Asteraceae | 7 |
| Neosparton aphyllum | (Gillies & Hook.) Kuntze | Verbenaceae | 7 |
| Ophioglossum nudicaule | L.f. | Ophioglossaceae | 7 |
| Orthosia retinaculata | (Schltr.) Liede & Meve | Apocynaceae | 7 |
| Passiflora tenuifila | Killip | Passifloraceae | 7 |
| Plectrocarpa rougesii | Descole, O'Donell & Lourteig | Zygophyllaceae | 7 |
| Plectrocarpa tetracantha | Gillies ex Hook. & Arn. | Zygophyllaceae | 7 |
| Porophyllum lanceolatum | DC. | Asteraceae | 7 |
| Portulaca confertifolia | Hauman | Portulacaceae | 7 |
| Prestonia quinquangularis | (Jacq.) Spreng. | Apocynaceae | 7 |
| Pseudognaphalium cheiranthifolium | (Lam.) Hilliard & B.L.Burtt | Asteraceae | 7 |
| Rhabdadenia ragonesei | Woodson | Apocynaceae | 7 |
| Ribes cucullatum | Hook. & Arn. | Grossulariaceae | 7 |
| Rubus urticifolius | Poir. | Rosaceae | 7 |
| Senecio adenophyllus | Walp. | Asteraceae | 7 |
| Sibthorpia conspicua | Diels | Plantaginaceae | 7 |
| Sicyos polyacanthos | Cogn. | Cucurbitaceae | 7 |
| Sisyrinchium palmifolium | L. | Iridaceae | 7 |
| Sisyrinchium tinctorium | Kunth | Iridaceae | 7 |
| Solanum stuckertii | Bitter | Solanaceae | 7 |
| Solanum symmetricum | Rusby | Solanaceae | 7 |
| Staelia virgata | (Willd.) K.Schum. | Rubiaceae | 7 |
| Stevia mandonii | Sch.Bip. | Asteraceae | 7 |
| Tecoma tenuiflora | (DC.) Fabris | Bignoniaceae | 7 |
| Tephrocactus alexanderi | (Britton & Rose) Backeb. | Cactaceae | 7 |
| Tephrocactus verschaffeltii | (Cels ex F.A.C.Weber) D.R.Hunt & Ritz | Cactaceae | 7 |
| Tillandsia andicola | Gillies ex Baker | Bromeliaceae | 7 |
| Tillandsia bandensis | Baker | Bromeliaceae | 7 |
| Tillandsia minutiflora | Donadio | Bromeliaceae | 7 |
| Tillandsia xiphioides | Ker Gawl. | Bromeliaceae | 7 |
| Valeriana macrorhiza | Poepp. ex DC. | Caprifoliaceae | 7 |
| Verbena intermedia | Gillies & Hook. | Verbenaceae | 7 |
| Aa weddelliana | (Rchb.f.) Schltr. | Orchidaceae | 6 |
| Alternanthera albida | (Moq.) Griseb. | Amaranthaceae | 6 |
| Araujia stormiana | Morong | Apocynaceae | 6 |
| Asclepias candida | Vell. | Apocynaceae | 6 |
| Ayenia cordobensis | Hieron. | Malvaceae | 6 |
| Ayenia lingulata | Griseb. | Malvaceae | 6 |
| Azorella trisecta | (H.Wolff) Mart.Fernández & C.I.Calviño | Apiaceae | 6 |
| Bacopa rotundifolia | (Michx.) Wettst. | Plantaginaceae | 6 |
| Banisteriopsis caapi | (Spruce ex Griseb.) C.V.Morton | Malpighiaceae | 6 |
| Begonia micranthera | Griseb. | Begoniaceae | 6 |
| Calandrinia compacta | Barnéoud | Montiaceae | 6 |
| Callianthe jujuiensis | (Hassl.) Donnell | Malvaceae | 6 |
| Carex antucensis | Kunze ex Kunth | Cyperaceae | 6 |
| Carex boliviensis | Van Heurck & Müll.Arg. | Cyperaceae | 6 |
| Carex firmicaulis | Kalela | Cyperaceae | 6 |
| Castilleja pumila | (Benth.) Wedd. | Orobanchaceae | 6 |
| Chaetanthera gnaphalioides | (J.Rémy) I.M.Johnst. | Asteraceae | 6 |
| Chaptalia sinuata | Vent. ex Steud. | Asteraceae | 6 |
| Chenopodium quinoa | Willd. | Chenopodiaceae | 6 |
| Chevreulia acuminata | Less. | Asteraceae | 6 |
| Chloraea praecincta | Speg. & Kraenzl. | Orchidaceae | 6 |
| Cleistocactus hyalacanthus | (K.Schum.) Rol.-Goss. | Cactaceae | 6 |
| Convolvulus laciniatus | Desr. | Convolvulaceae | 6 |
| Croton argenteus | L. | Euphorbiaceae | 6 |
| Cuphea calophylla | Cham. & Schltdl. | Lythraceae | 6 |
| Cyclanthera pedata | (L.) Schrad. | Cucurbitaceae | 6 |
| Dicliptera scutellata | Griseb. | Acanthaceae | 6 |
| Doryopteris triphylla | (Lam.) Christ | Pteridaceae | 6 |
| Ephedra multiflora | Phil. ex Stapf | Ephedraceae | 6 |
| Funastrum gracile | (Decne.) Schltr. | Apocynaceae | 6 |
| Grindelia cabrerae | Ariza | Asteraceae | 6 |
| Habenaria pumila | Poepp. | Orchidaceae | 6 |
| Haplopappus anthylloides | Meyen & Walp. | Asteraceae | 6 |
| Heliotropium microstachyum | Ruiz & Pav. | Heliotropiaceae | 6 |
| Hypochaeris acaulis | (J.Rémy) Britton | Asteraceae | 6 |
| Jaborosa odonelliana | Hunz. | Solanaceae | 6 |
| Jarava plumosa | (Spreng.) S.W.L.Jacobs & J.Everett | Poaceae | 6 |
| Junellia pappigera | (Phil.) N.O'Leary & P.Peralta | Verbenaceae | 6 |
| Kurzamra pulchella | (Clos) Kuntze | Lamiaceae | 6 |
| Leucheria candidissima | Gillies ex D.Don | Asteraceae | 6 |
| Leucheria scrobiculata | Gillies ex Don | Asteraceae | 6 |
| Lobelia xalapensis | Kunth | Campanulaceae | 6 |
| Lycianthes repens | (Spreng.) Bitter | Solanaceae | 6 |
| Lycium elongatum | Miers | Solanaceae | 6 |
| Lycium humile | Phil. | Solanaceae | 6 |
| Marsilea mollis | B.L.Rob. & Fernald | Marsileaceae | 6 |
| Microchloa kunthii | Desv. | Poaceae | 6 |
| Mimosa detinens | Benth. | Fabaceae | 6 |
| Mimosa farinosa | Griseb. | Fabaceae | 6 |
| Mitracarpus megapotamicus | (Spreng.) Kuntze | Rubiaceae | 6 |
| Montiopsis umbellata | (Ruiz & Pav.) D.I.Ford | Montiaceae | 6 |
| Neltuma humilis | (Gillies ex Hook.) C.E.Hughes & G.P.Lewis | Fabaceae | 6 |
| Neowerdermannia vorwerkii | Frič | Cactaceae | 6 |
| Nicotiana paa | Mart.Crov. | Solanaceae | 6 |
| Nissolia brasiliensis | (Vogel) T.M.Moura & Fort.-Perez | Fabaceae | 6 |
| Nothoscordum andicola | Kunth | Amaryllidaceae | 6 |
| Noticastrum argenteum | Cabrera | Asteraceae | 6 |
| Oenothera parodiana | Munz | Onagraceae | 6 |
| Ophryosporus piquerioides | (DC.) Benth. ex Baker | Asteraceae | 6 |
| Oziroe acaulis | (Baker) Speta | Asparagaceae | 6 |
| Passiflora chrysophylla | Chodat | Passifloraceae | 6 |
| Peperomia aceroana | C.DC. | Piperaceae | 6 |
| Peperomia hispidula | (Sw.) A.Dietr. | Piperaceae | 6 |
| Phalaris angusta | Nees ex Trin. | Poaceae | 6 |
| Poa ligularis | Nees ex Steud. | Poaceae | 6 |
| Polystichum montevidense | (Spreng.) Rosenst. | Dryopteridaceae | 6 |
| Prockia crucis | P.Browne ex L. | Salicaceae | 6 |
| Pterocaulon cordobense | Kuntze | Asteraceae | 6 |
| Salmea scandens | (L.) DC. | Asteraceae | 6 |
| Salvia rypara | Briq. | Lamiaceae | 6 |
| Sanvitalia versicolor | Griseb. | Asteraceae | 6 |
| Schinus roigii | Ruíz Leal & Cabrera | Anacardiaceae | 6 |
| Senecio algens | Wedd. | Asteraceae | 6 |
| Senecio expansus | Wedd. | Asteraceae | 6 |
| Senecio uspallatensis | Hook. & Arn. | Asteraceae | 6 |
| Senegalia tucumanensis | (Griseb.) Seigler & Ebinger | Fabaceae | 6 |
| Senna pachyrrhiza | (L.Bravo) H.S.Irwin & Barneby | Fabaceae | 6 |
| Sisyrinchium macrocarpum | Hieron. | Iridaceae | 6 |
| Solanum hieronymi | Kuntze | Solanaceae | 6 |
| Sphaeralcea crispa | Hook. ex Baker f. | Malvaceae | 6 |
| Sphaeralcea philippiana | Krapov. | Malvaceae | 6 |
| Tagetes argentina | Cabrera | Asteraceae | 6 |
| Tarasa humilis | (Gillies ex Hook. & Arn.) Krapov. | Malvaceae | 6 |
| Tephrocactus aoracanthus | (Lem.) Lem. | Cactaceae | 6 |
| Thalictrum venturii | B.Boivin | Ranunculaceae | 6 |
| Tillandsia australis | Mez | Bromeliaceae | 6 |
| Tillandsia sphaerocephala | Baker | Bromeliaceae | 6 |
| Tragia volubilis | L. | Euphorbiaceae | 6 |
| Trichocline dealbata | (Hook. & Arn.) Griseb. | Asteraceae | 6 |
| Trichocline sinuata | (D.Don) Cabrera | Asteraceae | 6 |
| Tripogandra glandulosa | (Seub.) Rohweder | Commelinaceae | 6 |
| Trixis grisebachii | Kuntze | Asteraceae | 6 |
| Verbena santiaguensis | (Covas & Schnack) Moldenke | Verbenaceae | 6 |
| Viguiera pazensis | Rusby | Asteraceae | 6 |
| Viola frigida | Phil. | Violaceae | 6 |
| Xenophyllum incisum | (Phil.) V.A.Funk | Asteraceae | 6 |
| Achatocarpus praecox | Griseb. | Achatocarpaceae | 5 |
| Adesmia capitellata | (Clos) Hauman | Fabaceae | 5 |
| Adesmia jilesiana | Burkart | Fabaceae | 5 |
| Aeschynomene denticulata | Rudd | Fabaceae | 5 |
| Aloysia trifida | (Gay) Lu-Irving & N.O'Leary | Verbenaceae | 5 |
| Baccharis microdonta | DC. | Asteraceae | 5 |
| Baccharis tenella | Hook. & Arn. | Asteraceae | 5 |
| Bocconia integrifolia | Bonpl. | Papaveraceae | 5 |
| Bothriochloa springfieldii | (Gould) Parodi | Poaceae | 5 |
| Bowlesia tropaeolifolia | Gillies & Hook. | Apiaceae | 5 |
| Calandrinia caespitosa | Gillies ex Arn. | Montiaceae | 5 |
| Calceolaria plectranthifolia | Walp. | Calceolariaceae | 5 |
| Calceolaria santolinoides | Kraenzl. | Calceolariaceae | 5 |
| Calceolaria umbellata | Wedd. | Calceolariaceae | 5 |
| Callaeum psilophyllum | (A.Juss.) D.M.Johnson | Malpighiaceae | 5 |
| Canavalia ensiformis | (L.) DC. | Fabaceae | 5 |
| Carex banksii | Boott | Cyperaceae | 5 |
| Carex chilensis | Brongn. | Cyperaceae | 5 |
| Carex fuscula | d'Urv. | Cyperaceae | 5 |
| Carex polysticha | Boeckeler | Cyperaceae | 5 |
| Carex subdivulsa | (Kük.) G.A.Wheeler | Cyperaceae | 5 |
| Chaetanthera dioica | (J.Rémy) B.L.Rob. | Asteraceae | 5 |
| Chaetanthera spathulifolia | Cabrera | Asteraceae | 5 |
| Cinnagrostis rigescens | (J.Presl) P.M.Peterson, Soreng, Romasch. & Barberá | Poaceae | 5 |
| Cleome gigantea | L. | Cleomaceae | 5 |
| Condalia buxifolia | Reissek | Rhamnaceae | 5 |
| Cordia americana | (L.) Gottschling & J.S.Mill. | Cordiaceae | 5 |
| Cordia trichotoma | (Vell.) Steud. | Cordiaceae | 5 |
| Cortaderia rudiuscula | Stapf | Poaceae | 5 |
| Crotalaria maypurensis | Kunth | Fabaceae | 5 |
| Cyclopogon apricus | (Lindl.) Schltr. | Orchidaceae | 5 |
| Cyclopogon congestus | (Vell.) Hoehne | Orchidaceae | 5 |
| Cyperus laxus | Lam. | Cyperaceae | 5 |
| Cyperus reflexus | Vahl | Cyperaceae | 5 |
| Dalea boliviana | Britton | Fabaceae | 5 |
| Denisophytum stuckertii | (Hassl.) Gagnon & G.P.Lewis | Fabaceae | 5 |
| Desmodium affine | Schltdl. | Fabaceae | 5 |
| Dyckia floribunda | Griseb. | Bromeliaceae | 5 |
| Echinopepon racemosus | (Steud.) C.Jeffrey | Cucurbitaceae | 5 |
| Euphorbia klotzschii | Oudejans | Euphorbiaceae | 5 |
| Euploca campestris | (Griseb.) Diane & Hilger | Heliotropiaceae | 5 |
| Galeandra beyrichii | Rchb.f. | Orchidaceae | 5 |
| Galianthe laxa | (Cham. & Schltdl.) E.L.Cabral | Rubiaceae | 5 |
| Gamochaeta falcata | (Lam.) Cabrera | Asteraceae | 5 |
| Gentiana gayi | Griseb. | Gentianaceae | 5 |
| Grausa lateritia | (Gillies ex Arn.) Weigend & R.H.Acuña | Loasaceae | 5 |
| Gymnocalycium spegazzinii | Britton & Rose | Cactaceae | 5 |
| Hieronymiella clidanthoides | Pax | Amaryllidaceae | 5 |
| Hippeastrum argentinum | (Pax) Hunz. | Amaryllidaceae | 5 |
| Ipomoea bonariensis | Hook. | Convolvulaceae | 5 |
| Ixorhea tschudiana | Fenzl | Heliotropiaceae | 5 |
| Jatropha excisa | Griseb. | Euphorbiaceae | 5 |
| Junellia origenes | (Phil.) N.O'Leary & P.Peralta | Verbenaceae | 5 |
| Junellia uniflora | (Phil.) Moldenke | Verbenaceae | 5 |
| Justicia kuntzei | Lindau | Acanthaceae | 5 |
| Kaunia saltensis | (Hieron.) R.M.King & H.Rob. | Asteraceae | 5 |
| Linum selaginoides | Lam. | Linaceae | 5 |
| Lippia turnerifolia | Cham. | Verbenaceae | 5 |
| Loasa mendocina | (Urb. & Gilg) R.H.Acuña, Weigend & D.H.Cohen | Loasaceae | 5 |
| Lorentzianthus viscidus | (Hook. & Arn.) R.M.King & H.Rob. | Asteraceae | 5 |
| Manihot anisophylla | Müll.Arg. | Euphorbiaceae | 5 |
| Melochia anomala | Griseb. | Malvaceae | 5 |
| Mimozyganthus carinatus | (Griseb.) Burkart | Fabaceae | 5 |
| Montiopsis gilliesii | (Hook. & Arn.) D.I.Ford | Montiaceae | 5 |
| Mostacillastrum orbignyanum | (E.Fourn.) Al-Shehbaz | Brassicaceae | 5 |
| Mulguraea asparagoides | (Gillies & Hook.) N.O'Leary & P.Peralta | Verbenaceae | 5 |
| Mutisia acerosa | Poepp. ex Less. | Asteraceae | 5 |
| Mutisia hamata | Reiche | Asteraceae | 5 |
| Mutisia kurtzii | R.E.Fr. | Asteraceae | 5 |
| Mutisia linearifolia | Cav. | Asteraceae | 5 |
| Nassauvia pyramidalis | Meyen | Asteraceae | 5 |
| Nicotiana petunioides | (Griseb.) Millán | Solanaceae | 5 |
| Nicotiana undulata | Ruiz & Pav. | Solanaceae | 5 |
| Nierembergia veitchii | Hook. | Solanaceae | 5 |
| Novenia acaulis | (Benth. & Hook.f. ex B.D.Jacks.) S.E.Freire & F.H.Hellw. | Asteraceae | 5 |
| Oxalis cinerea | Zucc. | Oxalidaceae | 5 |
| Passiflora umbilicata | (Griseb.) Harms | Passifloraceae | 5 |
| Pavonia glechomoides | A.St.-Hil. | Malvaceae | 5 |
| Persicaria hispida | (Kunth) M.Gómez | Polygonaceae | 5 |
| Pinnasa kurtzii | (Urb. & Gilg) R.H.Acuña, D.H.Cohen & Weigend | Loasaceae | 5 |
| Plantago nubicola | (Decne.) Rahn | Plantaginaceae | 5 |
| Prunus tucumanensis | Lillo | Rosaceae | 5 |
| Pseudabutilon virgatum | (Cav.) Fryxell | Malvaceae | 5 |
| Pseudechinolaena polystachya | (Kunth) Stapf | Poaceae | 5 |
| Pterocaulon purpurascens | Malme | Asteraceae | 5 |
| Ramorinoa girolae | Speg. | Fabaceae | 5 |
| Ranunculus flagelliformis | Sm. | Ranunculaceae | 5 |
| Rhynchospora rugosa | (Vahl) Gale | Cyperaceae | 5 |
| Rytidosperma virescens | (É.Desv.) Nicora | Poaceae | 5 |
| Schizopetalon rupestre | Reiche | Brassicaceae | 5 |
| Senecio dryophyllus | Meyen & Walp. | Asteraceae | 5 |
| Senecio leucostachys | Baker | Asteraceae | 5 |
| Senecio pinnatus | Poir. | Asteraceae | 5 |
| Senna birostris | (Dombey ex Vogel) H.S.Irwin & Barneby | Fabaceae | 5 |
| Sida glabra | Mill. | Malvaceae | 5 |
| Solanum acaule | Bitter | Solanaceae | 5 |
| Solanum aloysiifolium | Dunal | Solanaceae | 5 |
| Sphaeralcea brevipes | (Phil.) Krapov. | Malvaceae | 5 |
| Sporobolus rigens | (Trin.) É.Desv. | Poaceae | 5 |
| Struthanthus uraguensis | (Hook. & Arn.) G.Don | Loranthaceae | 5 |
| Symphyotrichum glabrifolium | (DC.) G.L.Nesom | Asteraceae | 5 |
| Tillandsia muhriae | W.Weber | Bromeliaceae | 5 |
| Trichomanes anadromum | Rosenst. | Hymenophyllaceae | 5 |
| Tropaeolum slanisii | Bulacio | Tropaeolaceae | 5 |
| Urtica circularis | (Hicken) Sorarú | Urticaceae | 5 |
| Vachellia astringens | (Gillies ex Hook. & Arn.) Speg. | Fabaceae | 5 |
| Verbena gracilescens | (Cham.) Herter | Verbenaceae | 5 |
| Waltheria communis | A.St.-Hil. | Malvaceae | 5 |
| Xenophyllum poposum | (Phil.) V.A.Funk | Asteraceae | 5 |
| Abutilon terminale | (Cav.) A.St.-Hil. | Malvaceae | 4 |
| Adenostemma brasilianum | (Pers.) Cass. | Asteraceae | 4 |
| Adesmia occulta | (R.E.Fr.) Burkart | Fabaceae | 4 |
| Agrostis mertensii | Trin. | Poaceae | 4 |
| Agrostis montevidensis | Spreng. ex Nees | Poaceae | 4 |
| Alshehbazia friesii | (O.E.Schulz) Salariato, Zuloaga & Al-Shehbaz | Brassicaceae | 4 |
| Alstroemeria umbellata | Meyen | Alstroemeriaceae | 4 |
| Amelichloa brachychaeta | (Godr.) Arriaga & Barkworth | Poaceae | 4 |
| Annona emarginata | (Schltdl.) H.Rainer | Annonaceae | 4 |
| Aphyllocladus spartioides | Wedd. | Asteraceae | 4 |
| Aralia soratensis | Marchal | Araliaceae | 4 |
| Aristolochia esperanzae | Kuntze | Aristolochiaceae | 4 |
| Astragalus vesiculosus | Clos | Fabaceae | 4 |
| Athyrium dombeyi | Desv. | Athyriaceae | 4 |
| Ayenia eliae | Cristóbal | Malvaceae | 4 |
| Azorella cryptantha | (Clos) Reiche | Apiaceae | 4 |
| Baccharis acaulis | (R.E.Fr.) Cabrera | Asteraceae | 4 |
| Baccharis gilliesii | A.Gray | Asteraceae | 4 |
| Baccharis neorupestris | Deble & A.S.Oliveira | Asteraceae | 4 |
| Balbisia miniata | (I.M.Johnst.) Descole, O'Donell & Lourteig | Francoaceae | 4 |
| Begonia wollnyi | Herzog | Begoniaceae | 4 |
| Berberis commutata | Eichler | Berberidaceae | 4 |
| Bouteloua simplex | Lag. | Poaceae | 4 |
| Brachyclados lycioides | D.Don | Asteraceae | 4 |
| Brachyotum microdon | (Naudin) Triana | Melastomataceae | 4 |
| Calceolaria brunellifolia | Phil. | Calceolariaceae | 4 |
| Campovassouria cruciata | (Vell.) R.M.King & H.Rob. | Asteraceae | 4 |
| Carex argentina | Barros | Cyperaceae | 4 |
| Carex brongniartii | Kunth | Cyperaceae | 4 |
| Cenchrus nervosus | (Nees) Kuntze | Poaceae | 4 |
| Cerradicola praeandina | (Burkart) L.P.Queiroz | Fabaceae | 4 |
| Chaerophyllum andicola | (Kunth) K.F.Chung | Apiaceae | 4 |
| Chersodoma candida | Phil. | Asteraceae | 4 |
| Chromolaena arnottiana | (Griseb.) R.M.King & H.Rob. | Asteraceae | 4 |
| Chromolaena christieana | (Baker) R.M.King & H.Rob. | Asteraceae | 4 |
| Chuquiraga longiflora | (Griseb.) Hieron. | Asteraceae | 4 |
| Cistanthe picta | (Gillies ex Arn.) Carolin ex Hershk. | Montiaceae | 4 |
| Cuscuta americana | L. | Convolvulaceae | 4 |
| Deinacanthon urbanianum | (Mez) Mez | Bromeliaceae | 4 |
| Dendrophorbium peregrinum | (Griseb.) C.Jeffrey | Asteraceae | 4 |
| Erigeron myosotis | Pers. | Asteraceae | 4 |
| Eubrachion ambiguum | (Hook. & Arn.) Engl. | Santalaceae | 4 |
| Fabiana patagonica | Speg. | Solanaceae | 4 |
| Fridericia truncata | (Sprague) L.G.Lohmann | Bignoniaceae | 4 |
| Gaga marginata | (Kunth) Fay W.Li & Windham | Pteridaceae | 4 |
| Gamochaeta capitata | Wedd. | Asteraceae | 4 |
| Gamochaeta simplicicaulis | (Willd. ex Spreng.) Cabrera | Asteraceae | 4 |
| Giliastrum foetidum | (Gillies ex Benth.) J.M.Porter | Polemoniaceae | 4 |
| Gymnocalycium anisitsii | (K.Schum.) Britton & Rose | Cactaceae | 4 |
| Gymnocalycium saglionis | (Cels) Britton & Rose | Cactaceae | 4 |
| Hatschbachiella tweedieana | (Hook. ex Arn.) R.M.King & H.Rob. | Asteraceae | 4 |
| Heliotropium lilloi | (I.M.Johnst.) Luebert | Heliotropiaceae | 4 |
| Heteranthera zosterifolia | Mart. | Pontederiaceae | 4 |
| Heteropterys dumetorum | (Griseb.) Nied. | Malpighiaceae | 4 |
| Hoffmannseggia minor | (Phil.) Ulibarri | Fabaceae | 4 |
| Hordeum muticum | J.Presl | Poaceae | 4 |
| Hypochaeris tenuifolia | (Hook. & Arn.) Griseb. | Asteraceae | 4 |
| Jatropha hieronymi | Kuntze | Euphorbiaceae | 4 |
| Junellia tridactylites | (Lag.) Moldenke | Verbenaceae | 4 |
| Lepidaploa remotiflora | (Rich.) H.Rob. | Asteraceae | 4 |
| Lobivia ancistrophora | (Speg.) Schlumpb. | Cactaceae | 4 |
| Macroptilium erythroloma | (Mart. ex Benth.) Urb. | Fabaceae | 4 |
| Mastigostyla spathacea | (Griseb.) Ravenna | Iridaceae | 4 |
| Melica sarmentosa | Nees | Poaceae | 4 |
| Menonvillea scapigera | (Phil.) Rollins | Brassicaceae | 4 |
| Morisonia retusa | (Griseb.) Christenh. & Byng | Capparaceae | 4 |
| Muhlenbergia ramulosa | (Kunth) Swallen | Poaceae | 4 |
| Mulguraea scoparia | (Gillies & Hook.) N.O'Leary & P.Peralta | Verbenaceae | 4 |
| Munnozia hastifolia | (Poepp.) H.Rob. & Brettell | Asteraceae | 4 |
| Mutisia ledifolia | Decne. ex Wedd. | Asteraceae | 4 |
| Myrcianthes pseudomato | (D.Legrand) McVaugh | Myrtaceae | 4 |
| Nassauvia aculeata | Poepp. & Endl. | Asteraceae | 4 |
| Nassauvia argentea | Phil. | Asteraceae | 4 |
| Nassauvia glomerata | Wedd. | Asteraceae | 4 |
| Neltuma ruizlealii | (Burkart) C.E.Hughes & G.P.Lewis | Fabaceae | 4 |
| Neobartsia elongata | (Wedd.) Uribe-Convers & Tank | Orobanchaceae | 4 |
| Philibertia speciosa | (Malme) Goyder | Apocynaceae | 4 |
| Phyllostylon rhamnoides | (J.Poiss.) Taub. | Ulmaceae | 4 |
| Podocoma hirsuta | Baker | Asteraceae | 4 |
| Polylepis tomentella | Wedd. | Rosaceae | 4 |
| Porophyllum obscurum | (Spreng.) DC. | Asteraceae | 4 |
| Prosopanche bonacinae | Speg. | Aristolochiaceae | 4 |
| Prosopidastrum globosum | (Gillies ex Hook. & Arn.) Burkart | Fabaceae | 4 |
| Pterocactus fischeri | Britton & Rose | Cactaceae | 4 |
| Puya dyckioides | (Baker) Mez | Bromeliaceae | 4 |
| Quechualia fulta | (Griseb.) H.Rob. | Asteraceae | 4 |
| Rubus imperialis | Cham. & Schltdl. | Rosaceae | 4 |
| Ruprechtia laxiflora | Meisn. | Polygonaceae | 4 |
| Sceptridium schaffneri | (Underw.) Lyon | Ophioglossaceae | 4 |
| Schinus gracilipes | I.M.Johnst. | Anacardiaceae | 4 |
| Schinus talampaya | Fabbroni & M.A.Zapater | Anacardiaceae | 4 |
| Scutellaria purpurascens | Sw. | Lamiaceae | 4 |
| Senna subulata | (Griseb.) H.S.Irwin & Barneby | Fabaceae | 4 |
| Setaria macrostachya | Kunth | Poaceae | 4 |
| Soehrensia angelesiae | (R.Kiesling) Schlumpb. | Cactaceae | 4 |
| Solanum albidum | Dunal | Solanaceae | 4 |
| Solanum leucocarpon | Dunal | Solanaceae | 4 |
| Solanum physalidicalyx | Bitter | Solanaceae | 4 |
| Stachys albicaulis | Lindl. | Lamiaceae | 4 |
| Steinchisma laxum | (Sw.) Zuloaga | Poaceae | 4 |
| Stenandrium mandioccanum | Nees | Acanthaceae | 4 |
| Stevia sanguinea | Hieron. | Asteraceae | 4 |
| Strombocarpa reptans | (Benth.) A.Gray | Fabaceae | 4 |
| Tagetes campanulata | Griseb. | Asteraceae | 4 |
| Tanaecium selloi | (Spreng.) L.G.Lohmann | Bignoniaceae | 4 |
| Tillandsia gilliesii | Baker | Bromeliaceae | 4 |
| Tillandsia pohliana | Mez | Bromeliaceae | 4 |
| Trichophorum rigidum | (Steud.) Goetgh., Muasya & D.A.Simpson | Cyperaceae | 4 |
| Tristagma ameghinoi | (Speg.) Speg. | Amaryllidaceae | 4 |
| Trixis antimenorrhoea | (Schrank) Kuntze | Asteraceae | 4 |
| Urera aurantiaca | Wedd. | Urticaceae | 4 |
| Urtica echinata | Benth. | Urticaceae | 4 |
| Vachellia albicorticata | (Burkart) Seigler & Ebinger | Fabaceae | 4 |
| Verbena sulphurea | D.Don | Verbenaceae | 4 |
| Vicia pampicola | Burkart | Fabaceae | 4 |
| Viola tectiflora | W.Becker | Violaceae | 4 |
| Aa achalensis | Schltr. | Orchidaceae | 3 |
| Abutilon umbelliflorum | A.St.-Hil. | Malvaceae | 3 |
| Acanthocalycium spiniflorum | (K.Schum.) Backeb. | Cactaceae | 3 |
| Achyrocline flaccida | (Weinm.) DC. | Asteraceae | 3 |
| Adesmia coronilloides | Gillies ex Hook. & Arn. | Fabaceae | 3 |
| Adesmia erinacea | Phil. | Fabaceae | 3 |
| Adesmia hemisphaerica | Hauman | Fabaceae | 3 |
| Adiantum deflectens | Mart. | Pteridaceae | 3 |
| Alstroemeria exerens | Meyen | Alstroemeriaceae | 3 |
| Alternanthera lanceolata | (Benth.) Schinz | Amaranthaceae | 3 |
| Andropogon tener | (Nees) Kunth | Poaceae | 3 |
| Annona nutans | (R.E.Fr.) R.E.Fr. | Annonaceae | 3 |
| Apodanthera sagittifolia | (Griseb.) Mart.Crov. | Cucurbitaceae | 3 |
| Arachis duranensis | Krapov. & W.C.Greg. | Fabaceae | 3 |
| Aspidosperma triternatum | Rojas Acosta | Apocynaceae | 3 |
| Astragalus micranthellus | Wedd. | Fabaceae | 3 |
| Astragalus pusillus | Vogel | Fabaceae | 3 |
| Azorella nivalis | Phil. | Apiaceae | 3 |
| Baccharis pentlandii | DC. | Asteraceae | 3 |
| Baccharis scandens | Pers. | Asteraceae | 3 |
| Bidens mandonii | (Sherff) Cabrera | Asteraceae | 3 |
| Botrychium dusenii | (Christ) Alston | Ophioglossaceae | 3 |
| Bromus setifolius | J.Presl | Poaceae | 3 |
| Caiophora cernua | (Griseb.) Urb. & Gilg ex Kurtz | Loasaceae | 3 |
| Caiophora hibiscifolia | (Griseb.) Urb. & Gilg | Loasaceae | 3 |
| Calceolaria elatior | Griseb. | Calceolariaceae | 3 |
| Calycophyllum multiflorum | Griseb. | Rubiaceae | 3 |
| Capsicum baccatum | L. | Solanaceae | 3 |
| Carex ecuadorica | Kük. | Cyperaceae | 3 |
| Carex uruguensis | Boeckeler | Cyperaceae | 3 |
| Cedrela angustifolia | Moc. & Sessé ex DC. | Meliaceae | 3 |
| Celtis chichape | (Wedd.) Miq. | Cannabaceae | 3 |
| Cenostigma pluviosum | (DC.) Gagnon & G.P.Lewis | Fabaceae | 3 |
| Chaptalia similis | R.E.Fr. | Asteraceae | 3 |
| Chevreulia sarmentosa | (Pers.) S.F.Blake | Asteraceae | 3 |
| Chloroleucon tenuiflorum | (Benth.) Barneby & J.W.Grimes | Fabaceae | 3 |
| Chuquiraga atacamensis | Kuntze | Asteraceae | 3 |
| Cienfuegosia hispida | R.E.Fr. | Malvaceae | 3 |
| Cinnagrostis velutina | (Nees & Meyen) P.M.Peterson, Soreng, Romasch. & Barberá | Poaceae | 3 |
| Clinopodium gilliesii | (Benth.) Kuntze | Lamiaceae | 3 |
| Corchorus hirtus | L. | Malvaceae | 3 |
| Cosmos peucedanifolius | Wedd. | Asteraceae | 3 |
| Cristaria andicola | Gay | Malvaceae | 3 |
| Cristaria dissecta | Hook. & Arn. | Malvaceae | 3 |
| Croton argentinus | Müll.Arg. | Euphorbiaceae | 3 |
| Cumulopuntia pentlandii | (Salm-Dyck) F.Ritter | Cactaceae | 3 |
| Cyclanthera hystrix | Arn. | Cucurbitaceae | 3 |
| Cyperus rigens | J.Presl & C.Presl | Cyperaceae | 3 |
| Daucus montanus | Humb. & Bonpl. ex Schult. | Apiaceae | 3 |
| Descurainia myriophylla | (Humb., Bonpl. & Kunth) R.E.Fr. | Brassicaceae | 3 |
| Deuterocohnia schreiteri | A.Cast. | Bromeliaceae | 3 |
| Dimerostemma aspilioides | (Griseb.) M.D.Moraes | Asteraceae | 3 |
| Echeandia ciliata | (Kunth) Cruden | Asparagaceae | 3 |
| Ennealophus euryandrus | (Griseb.) Ravenna | Iridaceae | 3 |
| Ephedra boelckei | F.A.Roig | Ephedraceae | 3 |
| Ephedra breana | Phil. | Ephedraceae | 3 |
| Erythroxylum cuneifolium | (Mart.) O.E.Schulz | Erythroxylaceae | 3 |
| Euphorbia catamarcensis | (Croizat) Subils | Euphorbiaceae | 3 |
| Eustachys distichophylla | (Lag.) Nees | Poaceae | 3 |
| Geranium parodii | I.M.Johnst. | Geraniaceae | 3 |
| Gomphrena mendocina | (Phil.) R.E.Fr. | Amaranthaceae | 3 |
| Gorgonidium vermicidum | (Speg.) Bogner & Nicolson | Araceae | 3 |
| Gouania polygama | (Jacq.) Urb. | Rhamnaceae | 3 |
| Grindelia boliviana | Rusby | Asteraceae | 3 |
| Habenaria bractescens | Lindl. | Orchidaceae | 3 |
| Habenaria parviflora | Lindl. | Orchidaceae | 3 |
| Habenaria petalodes | Lindl. | Orchidaceae | 3 |
| Hedeoma multiflora | Benth. | Lamiaceae | 3 |
| Heliotropium geissei | F.Phil. | Heliotropiaceae | 3 |
| Heliotropium paronychioides | A.DC. | Heliotropiaceae | 3 |
| Heterophyllaea pustulata | Hook.f. | Rubiaceae | 3 |
| Heterostachys ritteriana | (Moq.) Ung.-Sternb. | Chenopodiaceae | 3 |
| Hordeum comosum | J.Presl | Poaceae | 3 |
| Hyaloseris rubicunda | Griseb. | Asteraceae | 3 |
| Hymenoxys robusta | (Rusby) K.F.Parker | Asteraceae | 3 |
| Hypericum brevistylum | Choisy | Hypericaceae | 3 |
| Hypochaeris echegarayi | Hieron. | Asteraceae | 3 |
| Hypochaeris microcephala | (Sch.Bip.) Cabrera | Asteraceae | 3 |
| Indigofera parodiana | Burkart | Fabaceae | 3 |
| Junellia toninii | (Kuntze) Moldenke | Verbenaceae | 3 |
| Kallstroemia tribuloides | (Mart.) Steud. | Zygophyllaceae | 3 |
| Knowltonia major | (Phil.) Christenh. & Byng | Ranunculaceae | 3 |
| Lathyrus nervosus | Lam. | Fabaceae | 3 |
| Lecanophora ameghinoi | (Speg.) Speg. | Malvaceae | 3 |
| Lepismium lorentzianum | (Griseb.) Barthlott | Cactaceae | 3 |
| Leucheria glacialis | Reiche | Asteraceae | 3 |
| Lippia suffruticosa | (Griseb.) Kuntze | Verbenaceae | 3 |
| Loasa heterophylla | Hook. & Arn. | Loasaceae | 3 |
| Lupinus heptaphyllus | (Vell.) Hassl. | Fabaceae | 3 |
| Melica lilloi | Bech. | Poaceae | 3 |
| Melpomene peruviana | (Desv.) Reider & R.C.Moran | Polypodiaceae | 3 |
| Microphyes minima | (Miers ex Colla) Briq. | Caryophyllaceae | 3 |
| Muhlenbergia fastigiata | (J.Presl) Henrard | Poaceae | 3 |
| Mulguraea ligustrina | (Lag.) N.O'Leary & P.Peralta | Verbenaceae | 3 |
| Myracrodruon urundeuva | Allemão | Anacardiaceae | 3 |
| Myrcianthes minimifolia | (McVaugh) McVaugh | Myrtaceae | 3 |
| Nama undulata | Kunth | Namaceae | 3 |
| Nassauvia pinnigera | D.Don | Asteraceae | 3 |
| Nassella nardoides | (Phil.) Barkworth | Poaceae | 3 |
| Neobartsia peruviana | (Walp.) Uribe-Convers & Tank | Orobanchaceae | 3 |
| Neuontobotrys frutescens | (Gillies ex Hook. & Arn.) Al-Shehbaz | Brassicaceae | 3 |
| Nototriche glauca | A.W.Hill | Malvaceae | 3 |
| Nymphaea jamesoniana | Planch. | Nymphaeaceae | 3 |
| Oenothera nana | Griseb. | Onagraceae | 3 |
| Ophioglossum reticulatum | L. | Ophioglossaceae | 3 |
| Oxalis famatinae | R.Knuth | Oxalidaceae | 3 |
| Oxalis hypsophila | Phil. | Oxalidaceae | 3 |
| Panicum urvilleanum | Kunth | Poaceae | 3 |
| Pappostipa humilis | (Cav.) Romasch. | Poaceae | 3 |
| Paspalum malacophyllum | Trin. | Poaceae | 3 |
| Pavonia revoluta | Krapov. | Malvaceae | 3 |
| Pectocarya boliviana | I.M.Johnst. | Boraginaceae | 3 |
| Pelexia bonariensis | (Lindl.) Schltr. | Orchidaceae | 3 |
| Peperomia comarapana | C.DC. | Piperaceae | 3 |
| Peperomia parvifolia | C.DC. | Piperaceae | 3 |
| Phacelia artemisioides | Griseb. | Hydrophyllaceae | 3 |
| Philibertia barbata | (Malme) Goyder | Apocynaceae | 3 |
| Philibertia parviflora | (Malme) Goyder | Apocynaceae | 3 |
| Phoradendron mucronatum | (DC.) Krug & Urb. | Santalaceae | 3 |
| Phyllanthus acuminatus | Vahl | Phyllanthaceae | 3 |
| Plectrocarpa bonariensis | (Griseb.) Christenh. & Byng | Zygophyllaceae | 3 |
| Plectrocarpa sarmientoi | (Lorentz ex Griseb.) Christenh. & Byng | Zygophyllaceae | 3 |
| Poa lepidula | (Nees & Meyen) Soreng & L.J.Gillespie | Poaceae | 3 |
| Ponthieva mandonii | Rchb.f. | Orchidaceae | 3 |
| Portulaca eruca | Hauman | Portulacaceae | 3 |
| Pterocaulon alopecuroides | (Lam.) DC. | Asteraceae | 3 |
| Rhipidocladum racemiflorum | (Steud.) McClure | Poaceae | 3 |
| Rhynchosia burkartii | Fortunato | Fabaceae | 3 |
| Sacoila argentina | (Griseb.) Garay | Orchidaceae | 3 |
| Sclerophylax kurtzii | Di Fulvio | Solanaceae | 3 |
| Senecio breviscapus | DC. | Asteraceae | 3 |
| Senecio epiphyticus | Kuntze | Asteraceae | 3 |
| Senecio kingii | Hook.f. | Asteraceae | 3 |
| Senecio ragonesei | Cabrera | Asteraceae | 3 |
| Senna burkartiana | (Villa) H.S.Irwin & Barneby | Fabaceae | 3 |
| Sida argentina | K.Schum. | Malvaceae | 3 |
| Sideroxylon obtusifolium | (Roem. & Schult.) T.D.Penn. | Sapotaceae | 3 |
| Silene andicola | Gillies | Caryophyllaceae | 3 |
| Sinningia tubiflora | (Hook.) Fritsch | Gesneriaceae | 3 |
| Solanum echegarayi | Hieron. | Solanaceae | 3 |
| Solanum endoadenium | Bitter | Solanaceae | 3 |
| Solanum euacanthum | Phil. | Solanaceae | 3 |
| Solanum palitans | C.V.Morton | Solanaceae | 3 |
| Solanum uncinellum | Lindl. | Solanaceae | 3 |
| Sorghastrum pellitum | (Hack.) Parodi | Poaceae | 3 |
| Spergularia depauperata | (Naudin) Rohrb. | Caryophyllaceae | 3 |
| Spergularia ramosa | Cambess. | Caryophyllaceae | 3 |
| Stemodia lanceolata | Benth. | Plantaginaceae | 3 |
| Stylosanthes hippocampoides | Mohlenbr. | Fabaceae | 3 |
| Tagetes terniflora | Kunth | Asteraceae | 3 |
| Thalictrum decipiens | B.Boivin | Ranunculaceae | 3 |
| Tillandsia retorta | Griseb. ex Baker | Bromeliaceae | 3 |
| Trichocline boecheri | Cabrera | Asteraceae | 3 |
| Valeriana wandae | (Graebn. & Tessend.) Christenh. & Byng | Caprifoliaceae | 3 |
| Verbena lilloana | Moldenke | Verbenaceae | 3 |
| Verbena scrobiculata | Griseb. | Verbenaceae | 3 |
| Verbesina lilloi | S.F.Blake | Asteraceae | 3 |
| Vicia andicola | Kunth | Fabaceae | 3 |
| Viguiera gilliesii | Hieron. | Asteraceae | 3 |
| Vriesea maxoniana | (L.B.Sm.) L.B.Sm. | Bromeliaceae | 3 |
| Zephyranthes filifolia | Kraenzl. | Amaryllidaceae | 3 |
| Zygostigma australe | (Cham. & Schltdl.) Griseb. | Gentianaceae | 3 |
Abildgaardia ovataflatspike sedge
Abutilon grandifoliumhairy Indian mallow
Abutilon viscosumviscid mallow
Acaciella angustissimaprairie acacia
Acaena alpina
Acaena magellanica
Acaena ovalifolia
Acaena pinnatifidaArgentinian biddy-biddy
Acaena splendens
Acalypha communis
Acalypha poiretiiPoiret's copperleaf
Acanthocalycium leucanthum
Acanthospermum australeParaguayan starbur
Acanthospermum hispidumhispid starbur
Acanthostyles buniifolius
Acanthosyris falcata
Acaulimalva nubigena
Acicarpha tribuloidesmadam gorgon
Acmella decumbenscreeping spotflower
Acrocomia totaigrugru palm
Adenaria floribunda
Adesmia corymbosa
Adesmia glomerula
Adesmia grandiflora
Adesmia horrida
Adesmia incana
Adesmia longipes
Adesmia miraflorensis
Adesmia obovata
Adesmia parvifolia
Adesmia pinifolia
Adesmia subterranea
Adesmia trijuga
Adesmia volckmannii
Adiantopsis chlorophylla
Adiantum chilense
Adiantum lorentzii
Adiantum poiretii
Adiantum raddianumdelta maidenhair
Aeschynomene americanashyleaf
Agalinis communis
Agalinis genistifolia
Ageratina glechonophylla
Agrostis perennansupland bentgrass
Airampoa ayrampo
Airampoa corrugata
Alchemilla pinnata
Allenrolfea patagonica
