| Abildgaardia ovata | (Burm.f.) Kral | Cyperaceae | 8 |
| Abutilon grandifolium | (Willd.) Sweet | Malvaceae | 8 |
| Abutilon viscosum | (L.) Dorr | Malvaceae | 8 |
| Acalypha communis | Müll.Arg. | Euphorbiaceae | 8 |
| Acalypha herzogiana | Pax & K.Hoffm. | Euphorbiaceae | 8 |
| Acanthocalycium rhodotrichum | (K.Schum.) Schlumpb. | Cactaceae | 8 |
| Acanthospermum australe | (Loefl.) Kuntze | Asteraceae | 8 |
| Acanthospermum hispidum | DC. | Asteraceae | 8 |
| Acanthostachys strobilacea | (Schult. & Schult.f.) Klotzsch | Bromeliaceae | 8 |
| Acanthosyris falcata | Griseb. | Santalaceae | 8 |
| Acianthera pubescens | (Lindl.) Pridgeon & M.W.Chase | Orchidaceae | 8 |
| Acianthera sonderiana | (Rchb.f.) Pridgeon & M.W.Chase | Orchidaceae | 8 |
| Acicarpha tribuloides | Juss. | Calyceraceae | 8 |
| Acmella decumbens | (Sm.) R.K.Jansen | Asteraceae | 8 |
| Acmella repens | Rich. ex Pers. | Asteraceae | 8 |
| Acrocomia totai | Mart. | Arecaceae | 8 |
| Acrostichum danaeifolium | Langsd. & Fisch. | Pteridaceae | 8 |
| Adenaria floribunda | Kunth | Lythraceae | 8 |
| Adiantopsis chlorophylla | (Sw.) Fée | Pteridaceae | 8 |
| Adiantopsis radiata | (L.) Fée | Pteridaceae | 8 |
| Adiantum latifolium | Lam. | Pteridaceae | 8 |
| Adiantum lorentzii | Hieron. | Pteridaceae | 8 |
| Adiantum petiolatum | Desv. | Pteridaceae | 8 |
| Adiantum poiretii | Wikstr. | Pteridaceae | 8 |
| Adiantum pulverulentum | L. | Pteridaceae | 8 |
| Adiantum raddianum | C.Presl | Pteridaceae | 8 |
| Aechmea bromeliifolia | (Rudge) Baker ex Benth. & Hook.f. | Bromeliaceae | 8 |
| Aechmea distichantha | Lem. | Bromeliaceae | 8 |
| Aechmea recurvata | (Klotzsch) L.B.Sm. | Bromeliaceae | 8 |
| Aegiphila verticillata | Vell. | Lamiaceae | 8 |
| Aeschynomene americana | L. | Fabaceae | 8 |
| Aeschynomene montevidensis | Vogel | Fabaceae | 8 |
| Agalinis communis | (Cham. & Schltdl.) D'Arcy | Orobanchaceae | 8 |
| Agalinis genistifolia | (Cham. & Schltdl.) D'Arcy | Orobanchaceae | 8 |
| Aiouea montana | (Sw.) R.Rohde | Lauraceae | 8 |
| Alibertia edulis | (Rich.) A.Rich. ex DC. | Rubiaceae | 8 |
| Allophylus edulis | (A.St.-Hil., A.Juss. & Cambess.) Radlk. ex Warm. | Sapindaceae | 8 |
| Allophylus guaraniticus | (A.St.-Hil.) Radlk. | Sapindaceae | 8 |
| Allophylus laevigatus | Radlk. | Sapindaceae | 8 |
| Aloysia citrodora | Paláu | Verbenaceae | 8 |
| Aloysia gratissima | (Gillies & Hook.) Tronc. | Verbenaceae | 8 |
| Aloysia virgata | (Ruiz & Pav.) Juss. | Verbenaceae | 8 |
| Alsophila setosa | Kaulf. | Cyatheaceae | 8 |
| Alstroemeria psittacina | Lehm. | Alstroemeriaceae | 8 |
| Alternanthera brasiliana | (L.) Kuntze | 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 |
| Alternanthera sessilis | (L.) DC. | Amaranthaceae | 8 |
| Amaranthus blitum | L. | Amaranthaceae | 8 |
| Amaranthus hybridus | L. | Amaranthaceae | 8 |
| Amaranthus muricatus | (Moq.) Hieron. | Amaranthaceae | 8 |
| Amaranthus spinosus | L. | Amaranthaceae | 8 |
| Amaranthus viridis | L. | Amaranthaceae | 8 |
| Ambrosia tenuifolia | Spreng. | Asteraceae | 8 |
| Amburana cearensis | (Allemão) A.C.Sm. | Fabaceae | 8 |
| Ammannia auriculata | Willd. | Lythraceae | 8 |
| Amphilophium carolinae | (Lindl.) L.G.Lohmann | Bignoniaceae | 8 |
| Amphilophium crucigerum | (L.) L.G.Lohmann | Bignoniaceae | 8 |
| Amphilophium paniculatum | (L.) Kunth | Bignoniaceae | 8 |
| Ananas comosus | (L.) Merr. | Bromeliaceae | 8 |
| Ananas macrodontes | É.Morren | Bromeliaceae | 8 |
| Anchietea pyrifolia | (Mart.) G.Don | Violaceae | 8 |
| Andropogon bicornis | L. | Poaceae | 8 |
| Anemia phyllitidis | (L.) Sw. | Anemiaceae | 8 |
| Anemia tomentosa | (Savigny) Sw. | Anemiaceae | 8 |
| Anemopaegma arvense | (Vell.) Stellfeld ex De Souza | Bignoniaceae | 8 |
| Angelonia integerrima | Spreng. | Plantaginaceae | 8 |
| Aniseia martinicensis | (Jacq.) Choisy | Convolvulaceae | 8 |
| Annona coriacea | Mart. | Annonaceae | 8 |
| Anredera cordifolia | (Ten.) Steenis | Basellaceae | 8 |
| Apteria aphylla | (Nutt.) Barnhart ex Small | Burmanniaceae | 8 |
| Aquarius grandiflorus | (Cham. & Schltdl.) Christenh. & Byng | Alismataceae | 8 |
| Arachis glabrata | Benth. | Fabaceae | 8 |
| Araucaria angustifolia | (Bertol.) Kuntze | Araucariaceae | 8 |
| Araujia angustifolia | (Hook. & Arn.) Steud. | Apocynaceae | 8 |
| Araujia brachystephana | (Griseb.) Fontella & Goyder | Apocynaceae | 8 |
| Araujia megapotamica | (Spreng.) G.Don | Apocynaceae | 8 |
| Araujia odorata | (Hook. & Arn.) Fontella & Goyder | Apocynaceae | 8 |
| Araujia sericifera | Brot. | Apocynaceae | 8 |
| Araujia variegata | (Griseb.) Fontella & Goyder | Apocynaceae | 8 |
| Argemone subfusiformis | Ownbey | Papaveraceae | 8 |
| Aristida adscensionis | L. | Poaceae | 8 |
| Aristida mendocina | Phil. | Poaceae | 8 |
| Aristolochia argentina | Griseb. | Aristolochiaceae | 8 |
| Aristolochia fimbriata | Cham. | Aristolochiaceae | 8 |
| Aristolochia lingua | Malme | Aristolochiaceae | 8 |
| Aristolochia littoralis | Parodi | Aristolochiaceae | 8 |
| Aristolochia odoratissima | L. | Aristolochiaceae | 8 |
| Aristolochia triangularis | Cham. | Aristolochiaceae | 8 |
| Asclepias mellodora | A.St.-Hil. | Apocynaceae | 8 |
| Aspidosperma polyneuron | Müll.Arg. | Apocynaceae | 8 |
| Aspidosperma pyrifolium | Mart. | Apocynaceae | 8 |
| Aspidosperma quebracho-blanco | Schltdl. | Apocynaceae | 8 |
| Aspilia foliacea | Baker | Asteraceae | 8 |
| Aster squamatus | (Spreng.) Hieron. | Asteraceae | 8 |
| Astraea lobata | (L.) Klotzsch | Euphorbiaceae | 8 |
| Astronium graveolens | Jacq. | Anacardiaceae | 8 |
| Athenaea fasciculata | (Vell.) I.M.C.Rodrigues & Stehmann | Solanaceae | 8 |
| Atriplex pamparum | Griseb. | Chenopodiaceae | 8 |
| Attalea exigua | Drude | Arecaceae | 8 |
| Attalea phalerata | Mart. ex Spreng. | Arecaceae | 8 |
| Austrobrickellia patens | (Hook. & Arn.) R.M.King & H.Rob. | Asteraceae | 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 |
| Ayenia tomentosa | L. | Malvaceae | 8 |
| Ayenia urticifolia | (K.Schum.) Christenh. & Byng | Malvaceae | 8 |
| Azolla filiculoides | Lam. | Salviniaceae | 8 |
| Baccharis anomala | DC. | Asteraceae | 8 |
| Baccharis articulata | Pers. | Asteraceae | 8 |
| Baccharis coridifolia | DC. | Asteraceae | 8 |
| Baccharis dracunculifolia | DC. | Asteraceae | 8 |
| Baccharis genistelloides | (Lam.) Pers. | Asteraceae | 8 |
| Baccharis glutinosa | Pers. | Asteraceae | 8 |
| Baccharis linearifolia | Pers. | Asteraceae | 8 |
| Baccharis notosergila | Griseb. | Asteraceae | 8 |
| Baccharis phyteumoides | DC. | Asteraceae | 8 |
| Baccharis punctulata | DC. | Asteraceae | 8 |
| Baccharis salicifolia | (Ruiz & Pav.) Pers. | Asteraceae | 8 |
| Baccharis semiserrata | DC. | Asteraceae | 8 |
| Baccharis spicata | (Lam.) Baill. | Asteraceae | 8 |
| Baccharis trinervis | Pers. | Asteraceae | 8 |
| Baccharis vulneraria | Baker | Asteraceae | 8 |
| Bacopa monnieri | (L.) Wettst. | Plantaginaceae | 8 |
| Balfourodendron riedelianum | (Engl.) Engl. | Rutaceae | 8 |
| Barrosoa candolleana | (Hook. & Arn.) R.M.King & H.Rob. | Asteraceae | 8 |
| Bauhinia forficata | Link | Fabaceae | 8 |
| Bauhinia ungulata | L. | Fabaceae | 8 |
| Begonia cucullata | Willd. | Begoniaceae | 8 |
| Bidens alba | DC. | Asteraceae | 8 |
| Bidens laevis | (L.) Britton, Sterns & Poggenb. | Asteraceae | 8 |
| Bidens pilosa | L. | Asteraceae | 8 |
| Bidens subalternans | DC. | Asteraceae | 8 |
| Bignonia callistegioides | Cham. | Bignoniaceae | 8 |
| Billbergia nutans | H.Wendl. ex Regel | Bromeliaceae | 8 |
| Bixa orellana | L. | Bixaceae | 8 |
| Blechnum asplenioides | Sw. | Blechnaceae | 8 |
| Blechnum occidentale | L. | Blechnaceae | 8 |
| Blepharocalyx salicifolius | (Kunth) O.Berg | Myrtaceae | 8 |
| Boehmeria caudata | Sw. | Urticaceae | 8 |
| Boehmeria cylindrica | (L.) Sw. | Urticaceae | 8 |
| Boerhavia diffusa | L. | Nyctaginaceae | 8 |
| Bolboschoenus robustus | (Pursh) Soják | Cyperaceae | 8 |
| Bomarea edulis | (Tussac) Herb. | Alstroemeriaceae | 8 |
| Bothriochloa barbinodis | (Lag.) Herter | Poaceae | 8 |
| Bothriochloa laguroides | (DC.) Herter | Poaceae | 8 |
| Bothriochloa longipaniculata | (Gould) Allred & Gould | Poaceae | 8 |
| Bouchetia anomala | (Miers) Britton & Rusby | Solanaceae | 8 |
| Bougainvillea campanulata | Heimerl | Nyctaginaceae | 8 |
| Bougainvillea spinosa | (Cav.) Heimerl | Nyctaginaceae | 8 |
| Bouteloua aristidoides | (Kunth) Griseb. | Poaceae | 8 |
| Bowdichia virgilioides | Kunth | Fabaceae | 8 |
| Bowlesia incana | Ruiz & Pav. | Apiaceae | 8 |
| Brasiliopuntia brasiliensis | (Willd.) A.Berger | Cactaceae | 8 |
| Brassavola tuberculata | Hook. | Orchidaceae | 8 |
| Bromelia balansae | Mez | Bromeliaceae | 8 |
| Bromelia hieronymi | Mez | Bromeliaceae | 8 |
| Bromelia serra | Griseb. | Bromeliaceae | 8 |
| Bromus catharticus | Vahl | Poaceae | 8 |
| Brunfelsia australis | Benth. | Solanaceae | 8 |
| Buchnera pusilla | Kunth | Orobanchaceae | 8 |
| Buddleja stachyoides | Cham. & Schltdl. | Scrophulariaceae | 8 |
| Buddleja tubiflora | Benth. | Scrophulariaceae | 8 |
| Bulnesia foliosa | Griseb. | Zygophyllaceae | 8 |
| Burmannia capitata | (Walter ex J.F.Gmel.) Mart. | Burmanniaceae | 8 |
| Byrsonima crassifolia | (L.) Kunth | Malpighiaceae | 8 |
| Cabomba caroliniana | A.Gray | Cabombaceae | 8 |
| Calea uniflora | Less. | Asteraceae | 8 |
| Calibrachoa parviflora | (Juss.) D'Arcy | Solanaceae | 8 |
| Calliandra dysantha | Benth. | Fabaceae | 8 |
| Calliandra parvifolia | (Hook. & Arn.) Speg. | Fabaceae | 8 |
| Calliandra selloi | (Spreng.) J.F.Macbr. | Fabaceae | 8 |
| Calliandra tweediei | Benth. | Fabaceae | 8 |
| Callianthe pauciflora | (A.St.-Hil.) Dorr | Malvaceae | 8 |
| Callianthe picta | (Gillies ex Hook. & Arn.) Donnell | Malvaceae | 8 |
| Callisia repens | (Jacq.) L. | Commelinaceae | 8 |
| Callisthene fasciculata | Mart. | Vochysiaceae | 8 |
| Calophyllum brasiliense | Cambess. | Calophyllaceae | 8 |
| Calopogonium caeruleum | (Benth.) C.Wright | Fabaceae | 8 |
| Calyptocarpus brasiliensis | (Nees & Mart.) B.L.Turner | Asteraceae | 8 |
| Camonea umbellata | (L.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Campomanesia guazumifolia | (Cambess.) O.Berg | Myrtaceae | 8 |
| Camptosema rubicundum | Hook. & Arn. | Fabaceae | 8 |
| Campuloclinium macrocephalum | DC. | Asteraceae | 8 |
| Canavalia bonariensis | Lindl. | Fabaceae | 8 |
| Canna glauca | L. | Cannaceae | 8 |
| Canna indica | L. | Cannaceae | 8 |
| Canna paniculata | Ruiz & Pav. | 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 |
| Cardiospermum corindum | L. | Sapindaceae | 8 |
| Cardiospermum grandiflorum | Sw. | Sapindaceae | 8 |
| Cardiospermum halicacabum | L. | Sapindaceae | 8 |
| Carex aureolensis | Steud. | Cyperaceae | 8 |
| Caryocar brasiliense | Cambess. | Caryocaraceae | 8 |
| Cascabela thevetia | (L.) Lippold | Apocynaceae | 8 |
| Casearia decandra | Jacq. | Salicaceae | 8 |
| Casearia sylvestris | Sw. | Salicaceae | 8 |
| Castela coccinea | Griseb. | Simaroubaceae | 8 |
| Castela tweediei | Planch. | Simaroubaceae | 8 |
| Castilleja arvensis | Schltdl. & Cham. | Orobanchaceae | 8 |
| Cattleya intermedia | Graham ex Hook. | Orchidaceae | 8 |
| Cayaponia bonariensis | (Mill.) Mart.Crov. | Cucurbitaceae | 8 |
| Cayaponia citrullifolia | (Griseb.) Cogn. ex Griseb. | Cucurbitaceae | 8 |
| Cayaponia espelina | (Silva Manso) Cogn. | Cucurbitaceae | 8 |
| Cayaponia podantha | Cogn. | Cucurbitaceae | 8 |
| Cecropia pachystachya | Trécul | Urticaceae | 8 |
| Cedrela fissilis | Vell. | Meliaceae | 8 |
| Cedrela odorata | L. | Meliaceae | 8 |
| Ceiba chodatii | (Hassl.) Ravenna | Malvaceae | 8 |
| Ceiba speciosa | (A.St.-Hil., A.Juss. & Cambess.) Ravenna | Malvaceae | 8 |
| Celtis iguanaea | (Jacq.) Sarg. | Cannabaceae | 8 |
| Celtis pallida | Torr. | 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 |
| Centratherum punctatum | Cass. | Asteraceae | 8 |
| Centrosema brasilianum | (L.) Benth. | Fabaceae | 8 |
| Centrosema plumieri | (Turpin ex Pers.) Benth. | Fabaceae | 8 |
| Centrosema virginianum | (L.) Benth. | Fabaceae | 8 |
| Cephalanthus glabratus | (Spreng.) K.Schum. | Rubiaceae | 8 |
| Ceratophyllum demersum | L. | Ceratophyllaceae | 8 |
| Cereus forbesii | C.F.Först. | Cactaceae | 8 |
| Cereus hildmannianus | K.Schum. | Cactaceae | 8 |
| Cereus stenogonus | K.Schum. | Cactaceae | 8 |
| Cestrum axillare | Vell. | Solanaceae | 8 |
| Cestrum euanthes | Schltdl. | Solanaceae | 8 |
| Cestrum parqui | (Lam.) L'Hér. | Solanaceae | 8 |
| Cestrum strigilatum | Ruiz & Pav. | Solanaceae | 8 |
| Chaetogastra gracilis | (Bonpl.) DC. | Melastomataceae | 8 |
| Chamaecrista absus | (L.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Chamaecrista calycioides | (DC. ex Collad.) Greene | Fabaceae | 8 |
| Chamaecrista desvauxii | (Collad.) Killip | Fabaceae | 8 |
| Chamaecrista flexuosa | (L.) Greene | Fabaceae | 8 |
| Chamaecrista nictitans | (L.) Moench | Fabaceae | 8 |
| Chamaecrista rotundifolia | (Pers.) Greene | Fabaceae | 8 |
| Chamissoa altissima | Kunth | Amaranthaceae | 8 |
| Chaptalia integerrima | (Vell.) Burkart | Asteraceae | 8 |
| Chaptalia nutans | (L.) Pol. | Asteraceae | 8 |
| Chaptalia piloselloides | (Vahl) Baker | Asteraceae | 8 |
| Chascolytrum subaristatum | (Lam.) Desv. | Poaceae | 8 |
| Chiococca alba | (L.) Hitchc. | Rubiaceae | 8 |
| Chiropetalum griseum | Griseb. | Euphorbiaceae | 8 |
| Chloris pycnothrix | Trin. | Poaceae | 8 |
| Chloris virgata | Sw. | Poaceae | 8 |
| Chromolaena hirsuta | (Hook. & Arn.) 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 |
| Cienfuegosia drummondii | (A.Gray) Lewton | Malvaceae | 8 |
| Cinnagrostis viridiflavescens | (Poir.) P.M.Peterson, Soreng, Romasch. & Barberá | Poaceae | 8 |
| Cipura paludosa | Aubl. | Iridaceae | 8 |
| Cissampelos pareira | L. | Menispermaceae | 8 |
| Cissus erosa | Rich. | Vitaceae | 8 |
| Cissus palmata | Poir. | Vitaceae | 8 |
| Cissus verticillata | (L.) Nicolson & C.E.Jarvis | Vitaceae | 8 |
| Citharexylum montevidense | (Spreng.) Moldenke | Verbenaceae | 8 |
| Citharexylum myrianthum | Cham. | Verbenaceae | 8 |
| Cladium mariscus | (L.) Pohl | Cyperaceae | 8 |
| Cleistocactus baumannii | (Lem.) Lem. | Cactaceae | 8 |
| Clematicissus striata | (Ruiz & Pav.) Lombardi | Vitaceae | 8 |
| Clematis campestris | A.St.-Hil. | Ranunculaceae | 8 |
| Clethra scabra | Pers. | Clethraceae | 8 |
| Clinopodium brownei | (Sw.) Kuntze | Lamiaceae | 8 |
| Clitoria guianensis | (Aubl.) Benth. | Fabaceae | 8 |
| Clitoria laurifolia | Poir. | Fabaceae | 8 |
| Cnidoscolus urens | (L.) Arthur | Euphorbiaceae | 8 |
| Coccocypselum aureum | (Spreng.) Cham. & Schltdl. | Rubiaceae | 8 |
| Coccocypselum cordifolium | Nees & Mart. | Rubiaceae | 8 |
| Coccocypselum lanceolatum | (Ruiz & Pav.) Pers. | Rubiaceae | 8 |
| Cochliasanthus caracalla | (L.) Trew | Fabaceae | 8 |
| Cochlospermum regium | (Schrank) Pilg. | Bixaceae | 8 |
| Coleataenia prionitis | (Nees) Soreng | Poaceae | 8 |
| Combretum fruticosum | (Loefl.) Stuntz | Combretaceae | 8 |
| Combretum laxum | Jacq. | Combretaceae | 8 |
| Combretum leprosum | Mart. | Combretaceae | 8 |
| Commelina erecta | L. | Commelinaceae | 8 |
| Commelina longicaulis | Jacq. | Commelinaceae | 8 |
| Commelina obliqua | Vahl | Commelinaceae | 8 |
| Commiphora leptophloeos | (Mart.) J.B.Gillett | Burseraceae | 8 |
| Convolvulus bonariensis | Cav. | Convolvulaceae | 8 |
| Convolvulus crenatifolius | Ruiz & Pav. | Convolvulaceae | 8 |
| Convolvulus hermanniae | L'Hér. | Convolvulaceae | 8 |
| Copaifera langsdorffii | Desf. | Fabaceae | 8 |
| Copernicia alba | Morong | Arecaceae | 8 |
| Cordia alliodora | (Ruiz & Pav.) Oken | Cordiaceae | 8 |
| Cordia glabrata | A.DC. | Cordiaceae | 8 |
| Cortaderia selloana | (Schult. & Schult.f.) Asch. & Graebn. | Poaceae | 8 |
| Costus arabicus | L. | Costaceae | 8 |
| Craniolaria integrifolia | Cham. | Martyniaceae | 8 |
| Crateva tapia | L. | Capparaceae | 8 |
| Cressa truxillensis | Kunth | Convolvulaceae | 8 |
| Crinum erubescens | L.f. | Amaryllidaceae | 8 |
| Crotalaria incana | L. | Fabaceae | 8 |
| Crotalaria micans | Link | Fabaceae | 8 |
| Crotalaria sagittalis | L. | Fabaceae | 8 |
| Croton bonplandianus | Baill. | Euphorbiaceae | 8 |
| Croton floribundus | Spreng. | Euphorbiaceae | 8 |
| Croton glandulosus | L. | Euphorbiaceae | 8 |
| Croton gracilipes | Baill. | Euphorbiaceae | 8 |
| Croton heliotropiifolius | Kunth | Euphorbiaceae | 8 |
| Croton hirtus | L'Hér. | Euphorbiaceae | 8 |
| Croton lanatus | Lam. | Euphorbiaceae | 8 |
| Croton subpannosus | Griseb. | Euphorbiaceae | 8 |
| Croton urucurana | Baill. | Euphorbiaceae | 8 |
| Ctenodon viscidulus | (Michx.) D.B.O.S.Cardoso & A.Delgado | Fabaceae | 8 |
| Cucurbitella asperata | (Gillies ex Hook. & Arn.) Walp. | Cucurbitaceae | 8 |
| Cupania vernalis | Cambess. | Sapindaceae | 8 |
| Cuphea carthagenensis | (Jacq.) J.F.Macbr. | Lythraceae | 8 |
| Cuphea fruticosa | Spreng. | Lythraceae | 8 |
| Cuphea glutinosa | Cham. & Schltdl. | Lythraceae | 8 |
| Cuphea racemosa | (L.f.) Spreng. | Lythraceae | 8 |
| Cuphea strigulosa | Kunth | Lythraceae | 8 |
| Curatella americana | L. | Dilleniaceae | 8 |
| Cuscuta umbellata | Kunth | Convolvulaceae | 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 |
| Cypella armosa | Ravenna | Iridaceae | 8 |
| Cypella herbertii | (Lindl.) Herb. | Iridaceae | 8 |
| Cyperus aggregatus | (Willd.) Endl. | Cyperaceae | 8 |
| Cyperus articulatus | L. | Cyperaceae | 8 |
| Cyperus blepharoleptos | Steud. | Cyperaceae | 8 |
| Cyperus brevifolius | (Rottb.) Hassk. | Cyperaceae | 8 |
| Cyperus entrerianus | Boeckeler | Cyperaceae | 8 |
| Cyperus esculentus | L. | Cyperaceae | 8 |
| Cyperus giganteus | Vahl | Cyperaceae | 8 |
| Cyperus haspan | L. | Cyperaceae | 8 |
| Cyperus lanceolatus | Poir. | Cyperaceae | 8 |
| Cyperus ligularis | L. | Cyperaceae | 8 |
| Cyperus luzulae | (L.) Retz. | 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 sesquiflorus | (Torr.) Mattf. & Kük. | Cyperaceae | 8 |
| Cyperus squarrosus | L. | Cyperaceae | 8 |
| Cyperus subsquarrosus | (Muhl.) Bauters | Cyperaceae | 8 |
| Cyperus surinamensis | Rottb. | Cyperaceae | 8 |
| Cyperus thyrsiflorus | Jungh. | Cyperaceae | 8 |
| Cyperus virens | Michx. | Cyperaceae | 8 |
| Cyrtocymura scorpioides | (Lam.) H.Rob. | Asteraceae | 8 |
| Dalechampia scandens | L. | Euphorbiaceae | 8 |
| Daphnopsis racemosa | Griseb. | Thymelaeaceae | 8 |
| Desmanthus acuminatus | Benth. | Fabaceae | 8 |
| Desmanthus virgatus | (L.) Willd. | Fabaceae | 8 |
| Desmodium incanum | (Sw.) DC. | Fabaceae | 8 |
| Desmodium tortuosum | (Sw.) DC. | Fabaceae | 8 |
| Desmodium uncinatum | (Jacq.) DC. | Fabaceae | 8 |
| Dianthera comata | L. | Acanthaceae | 8 |
| Dicella nucifera | Chodat | Malpighiaceae | 8 |
| Dichondra microcalyx | (Hallier f.) Fabris | Convolvulaceae | 8 |
| Dichondra sericea | Sw. | Convolvulaceae | 8 |
| Dichorisandra hexandra | (Aubl.) Standl. | Commelinaceae | 8 |
| Dicliptera squarrosa | Nees | Acanthaceae | 8 |
| Didymopanax morototoni | (Aubl.) Decne. & Planch. | Araliaceae | 8 |
| Digitaria californica | (Benth.) Henrard | Poaceae | 8 |
| Digitaria eriostachya | Mez | Poaceae | 8 |
| Digitaria filiformis | (L.) Koeler | Poaceae | 8 |
| Digitaria insularis | (L.) Mez ex Ekman | Poaceae | 8 |
| Dimorphandra mollis | Benth. | Fabaceae | 8 |
| Dioscorea dodecaneura | Vell. | Dioscoreaceae | 8 |
| Diplachne fusca | (L.) P.Beauv. | Poaceae | 8 |
| Distimake aegyptius | (L.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Distimake cissoides | (Lam.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Distimake dissectus | (Jacq.) A.R.Simões & Staples | Convolvulaceae | 8 |
| Ditaxis breviramea | (Müll.Arg.) Pax & K.Hoffm. | Euphorbiaceae | 8 |
| Dolichandra cynanchoides | Cham. | Bignoniaceae | 8 |
| Dolichandra quadrivalvis | (Jacq.) L.G.Lohmann | Bignoniaceae | 8 |
| Dolichandra unguis-cati | (L.) L.G.Lohmann | Bignoniaceae | 8 |
| Dorstenia brasiliensis | Lam. | Moraceae | 8 |
| Doryopteris concolor | (Langsd. & Fisch.) Kuhn & Decken | Pteridaceae | 8 |
| Drosera brevifolia | Pursh | Droseraceae | 8 |
| Drosera capillaris | Poir. | Droseraceae | 8 |
| Drosera communis | A.St.-Hil. | Droseraceae | 8 |
| Duguetia furfuracea | (A.St.-Hil.) Saff. | Annonaceae | 8 |
| Dyschoriste venturii | Leonard | Acanthaceae | 8 |
| Dysphania ambrosioides | (L.) Mosyakin & Clemants | Chenopodiaceae | 8 |
| Echinodorus berteroi | (Spreng.) Fassett | Alismataceae | 8 |
| Echinopsis oxygona | (Link) Zucc. ex Pfeiff. | Cactaceae | 8 |
| Eclipta prostrata | (L.) L. | Asteraceae | 8 |
| Edrastima uniflora | (L.) Raf. | Rubiaceae | 8 |
| Eleocharis elegans | (Kunth) Roem. & Schult. | Cyperaceae | 8 |
| Eleocharis interstincta | (Vahl) Roem. & Schult. | Cyperaceae | 8 |
| Eleocharis montana | (Kunth) Roem. & Schult. | Cyperaceae | 8 |
| Elephantopus mollis | Kunth | Asteraceae | 8 |
| Eleusine tristachya | (Lam.) Lam. | Poaceae | 8 |
| Elionurus muticus | (Spreng.) Kuntze | Poaceae | 8 |
| Elionurus tripsacoides | Willd. | Poaceae | 8 |
| Eltroplectris calcarata | (Sw.) Garay & H.R.Sweet | Orchidaceae | 8 |
| Emilia fosbergii | Nicolson | Asteraceae | 8 |
| Encyclia patens | Hook. | Orchidaceae | 8 |
| Enterolobium contortisiliquum | (Vell.) Morong | Fabaceae | 8 |
| Epidendrum rigidum | Jacq. | Orchidaceae | 8 |
| Epiphyllum phyllanthus | (L.) Haw. | Cactaceae | 8 |
| Equisetum giganteum | L. | Equisetaceae | 8 |
| Eragrostis hypnoides | (Lam.) Britton, Sterns & Poggenb. | Poaceae | 8 |
| Erechtites hieraciifolius | (L.) Raf. ex DC. | Asteraceae | 8 |
| Erianthus giganteus | (Walter) P.Beauv. | Poaceae | 8 |
| Erigeron bonariensis | L. | Asteraceae | 8 |
| Erigeron floribundus | (Kunth) Sch.Bip. | Asteraceae | 8 |
| Erigeron primulifolium | Juss. ex Cass. | Asteraceae | 8 |
| Erigeron sumatrensis | Retz. | Asteraceae | 8 |
| Eryngium coronatum | Hook. & Arn. | Apiaceae | 8 |
| Eryngium ebracteatum | Lam. | Apiaceae | 8 |
| Eryngium eburneum | Decne. | Apiaceae | 8 |
| Eryngium elegans | Cham. & Schltdl. | Apiaceae | 8 |
| Eryngium horridum | Malme | Apiaceae | 8 |
| Eryngium nudicaule | Lam. | Apiaceae | 8 |
| Eryngium pandanifolium | Cham. & Schltdl. | Apiaceae | 8 |
| Eryngium sanguisorba | Cham. & Schltdl. | Apiaceae | 8 |
| Eryngium serra | Cham. & Schltdl. | Apiaceae | 8 |
| Erythrina crista-galli | L. | Fabaceae | 8 |
| Erythrina falcata | Benth. | Fabaceae | 8 |
| Erythrina mulungu | Mart. ex Benth. | Fabaceae | 8 |
| Escallonia bifida | Link & Otto | Escalloniaceae | 8 |
| Escobedia grandiflora | (L.f.) Kuntze | Orobanchaceae | 8 |
| Eugenia involucrata | DC. | Myrtaceae | 8 |
| Eugenia myrcianthes | Nied. | Myrtaceae | 8 |
| Eugenia punicifolia | (Kunth) DC. | Myrtaceae | 8 |
| Eugenia pyriformis | Cambess. | Myrtaceae | 8 |
| Eugenia uniflora | L. | Myrtaceae | 8 |
| Eulophia alta | (L.) Fawc. & Rendle | Orchidaceae | 8 |
| Eumachia chaenotricha | (DC.) C.M.Taylor & Razafim. | Rubiaceae | 8 |
| Euphorbia berteroana | Balb. ex Spreng. | Euphorbiaceae | 8 |
| Euphorbia eichleri | Müll.Arg. | 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 potentilloides | Boiss. | Euphorbiaceae | 8 |
| Euphorbia serpens | Kunth | Euphorbiaceae | 8 |
| Euphorbia serpillifolia | Pers. | Euphorbiaceae | 8 |
| Euphorbia thymifolia | L. | Euphorbiaceae | 8 |
| Euploca procumbens | (Mill.) Diane & Hilger | Heliotropiaceae | 8 |
| Eustachys caribaea | (Spreng.) Herter | Poaceae | 8 |
| Eustachys petraea | (Sw.) Desv. | Poaceae | 8 |
| Euterpe edulis | Mart. | Arecaceae | 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 |
| Facelis retusa | (Lam.) Sch.Bip. | Asteraceae | 8 |
| Faramea hyacinthina | Mart. | Rubiaceae | 8 |
| Ficus citrifolia | Mill. | Moraceae | 8 |
| Ficus luschnathiana | (Miq.) Miq. | Moraceae | 8 |
| Ficus maxima | Mill. | Moraceae | 8 |
| Ficus pertusa | L.f. | Moraceae | 8 |
| Fimbristylis autumnalis | (L.) Roem. & Schult. | Cyperaceae | 8 |
| Fimbristylis complanata | (Retz.) Link | Cyperaceae | 8 |
| Fimbristylis dichotoma | (L.) Vahl | Cyperaceae | 8 |
| Fimbristylis spadicea | (L.) Vahl | Cyperaceae | 8 |
| Fimbristylis vahlii | (Lam.) Link | Cyperaceae | 8 |
| Flaveria bidentis | (L.) Kuntze | Asteraceae | 8 |
| Frangula sphaerosperma | (Sw.) Kartesz & Gandhi | Rhamnaceae | 8 |
| Fridericia chica | (Bonpl.) L.G.Lohmann | Bignoniaceae | 8 |
| Fuirena umbellata | Rottb. | Cyperaceae | 8 |
| Funastrum clausum | (Jacq.) Schltr. | Apocynaceae | 8 |
| Galactia striata | (Jacq.) Urb. | Fabaceae | 8 |
| Galianthe brasiliensis | (Spreng.) E.L.Cabral & Bacigalupo | Rubiaceae | 8 |
| Galinsoga parviflora | Cav. | Asteraceae | 8 |
| Galium hypocarpium | (L.) Endl. ex Griseb. | Rubiaceae | 8 |
| Gamochaeta americana | (Mill.) Wedd. | Asteraceae | 8 |
| Gamochaeta calviceps | (Fernald) Cabrera | Asteraceae | 8 |
| Gamochaeta pensylvanica | (Willd.) Cabrera | Asteraceae | 8 |
| Gamochaeta purpurea | (L.) Cabrera | Asteraceae | 8 |
| Garcinia madruno | (Kunth) Hammel | Clusiaceae | 8 |
| Gaya meridionalis | Hassl. | Malvaceae | 8 |
| Gaya parviflora | (Phil.) Krapov. | Malvaceae | 8 |
| Genipa americana | L. | Rubiaceae | 8 |
| Geoffroea decorticans | (Gillies ex Hook. & Arn.) Burkart | Fabaceae | 8 |
| Geoffroea spinosa | Jacq. | Fabaceae | 8 |
| Geonoma pohliana | Mart. | Arecaceae | 8 |
| Geophila macropoda | (Ruiz & Pav.) DC. | Rubiaceae | 8 |
| Geophila repens | (L.) I.M.Johnst. | Rubiaceae | 8 |
| Gibasis geniculata | (Jacq.) Rohweder | Commelinaceae | 8 |
| Gleditsia amorphoides | (Griseb.) Taub. | Fabaceae | 8 |
| Glinus radiatus | (Ruiz & Pav.) Rohrb. | Molluginaceae | 8 |
| Gomesa bifolia | (Sims) M.W.Chase & N.H.Williams | Orchidaceae | 8 |
| Gomesa flexuosa | (G.Lodd.) M.W.Chase & N.H.Williams | Orchidaceae | 8 |
| Gomesa planifolia | (Lindl.) Klotzsch ex Rchb.f. | Orchidaceae | 8 |
| Gomphrena arborescens | L.f. | Amaranthaceae | 8 |
| Gomphrena celosioides | Mart. | Amaranthaceae | 8 |
| Gomphrena elegans | Mart. | Amaranthaceae | 8 |
| Gomphrena martiana | Gillies ex Moq. | Amaranthaceae | 8 |
| Gomphrena perennis | L. | Amaranthaceae | 8 |
| Gomphrena pulchella | Mart. | Amaranthaceae | 8 |
| Gomphrena serrata | L. | Amaranthaceae | 8 |
| Gonolobus rostratus | (Vahl) Schult. | Apocynaceae | 8 |
| Gouania lupuloides | (L.) Urb. | Rhamnaceae | 8 |
| Gratiola peruviana | L. | Plantaginaceae | 8 |
| Grazielia serrata | (Spreng.) R.M.King & H.Rob. | Asteraceae | 8 |
| Grindelia scorzonerifolia | Hook. & Arn. | Asteraceae | 8 |
| Guarea guidonia | (L.) Sleumer | Meliaceae | 8 |
| Guazuma ulmifolia | Lam. | Malvaceae | 8 |
| Guettarda uruguensis | Cham. & Schltdl. | Rubiaceae | 8 |
| Guilleminea densa | (Humb. & Bonpl. ex Schult.) Moq. | Amaranthaceae | 8 |
| Gymnocalycium pflanzii | (Vaupel) Werderm. | Cactaceae | 8 |
| Gymnocoronis spilanthoides | DC. | Asteraceae | 8 |
| Gynerium sagittatum | (Aubl.) P.Beauv. | Poaceae | 8 |
| Habenaria floribunda | Lindl. | Orchidaceae | 8 |
| Habenaria gourlieana | Gillies ex Lindl. | Orchidaceae | 8 |
| Habenaria repens | Nutt. | Orchidaceae | 8 |
| Habenaria trifida | Kunth | Orchidaceae | 8 |
| Habranthus tubispathus | (L'Hér.) Traub | Amaryllidaceae | 8 |
| Hamelia patens | Jacq. | Rubiaceae | 8 |
| Hancornia speciosa | Gomes | Apocynaceae | 8 |
| Handroanthus albus | (Cham.) Mattos | Bignoniaceae | 8 |
| Handroanthus heptaphyllus | (Vell.) Mattos | Bignoniaceae | 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 martinii | (Labour.) Britton | Cactaceae | 8 |
| Harrisia pomanensis | (F.A.C.Weber ex K.Schum.) Britton & Rose | Cactaceae | 8 |
| Harrisia tortuosa | (J.Forbes) Britton & Rose | Cactaceae | 8 |
| Heimia salicifolia | Link | Lythraceae | 8 |
| Helanthium bolivianum | (Rusby) Lehtonen & Myllys | Alismataceae | 8 |
| Heliconia hirsuta | L.f. | Heliconiaceae | 8 |
| Heliconia psittacorum | L.f. | Heliconiaceae | 8 |
| Heliconia subulata | Ruiz & Pav. | Heliconiaceae | 8 |
| Heliocarpus americanus | L. | Malvaceae | 8 |
| Heliotropium angiospermum | Murray | Heliotropiaceae | 8 |
| Heliotropium curassavicum | L. | Heliotropiaceae | 8 |
| Heliotropium elongatum | (Lehm.) Gürke | Heliotropiaceae | 8 |
| Heliotropium indicum | L. | Heliotropiaceae | 8 |
| Heliotropium nicotianifolium | Poir. | Heliotropiaceae | 8 |
| Hennecartia omphalandra | J.Poiss. | Monimiaceae | 8 |
| Herbertia lahue | (Molina) Goldblatt | 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 |
| Hexasepalum teres | (Walter) J.H.Kirkbr. | Rubiaceae | 8 |
| Hibiscus striatus | Cav. | Malvaceae | 8 |
| Hippeastrum petiolatum | Pax | Amaryllidaceae | 8 |
| Hippocratea volubilis | L. | Celastraceae | 8 |
| Hirtella gracilipes | (Hook.f.) Prance | Chrysobalanaceae | 8 |
| Holocheilus hieracioides | (D.Don) Cabrera | 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 bowlesioides | Mathias & Constance | Araliaceae | 8 |
| Hydrocotyle leucocephala | Cham. & Schltdl. | Araliaceae | 8 |
| Hydrocotyle ranunculoides | L.f. | Araliaceae | 8 |
| Hydrocotyle umbellata | L. | Araliaceae | 8 |
| Hydrocotyle verticillata | Thunb. | Araliaceae | 8 |
| Hydrolea spinosa | L. | Hydroleaceae | 8 |
| Hymenachne amplexicaulis | (Rudge) Nees | Poaceae | 8 |
| Hymenaea courbaril | L. | Fabaceae | 8 |
| Hymenoxys anthemoides | Cass. | Asteraceae | 8 |
| Hypericum connatum | Lam. | Hypericaceae | 8 |
| Hypochaeris albiflora | (Kuntze) Azevêdo-Gonç. & Matzenb. | Asteraceae | 8 |
| Hypochaeris chillensis | (Kunth) Britton | Asteraceae | 8 |
| Hypoxis decumbens | L. | Hypoxidaceae | 8 |
| Hyptis alata | (Raf.) Shinners | Lamiaceae | 8 |
| Hyptis brevipes | Poit. | Lamiaceae | 8 |
| Hyptis lappacea | Benth. | Lamiaceae | 8 |
| Hysterionica resinosa | (Spreng.) P.L.R.Moraes | Asteraceae | 8 |
| Ibicella lutea | (Lindl.) Van Eselt. | Martyniaceae | 8 |
| Ichnanthus pallens | (Sw.) Munro ex Benth. | Poaceae | 8 |
| Ilex paraguariensis | A.St.-Hil. | Aquifoliaceae | 8 |
| Indigofera suffruticosa | Mill. | Fabaceae | 8 |
| Inga laurina | (Sw.) Willd. | Fabaceae | 8 |
| Inga marginata | Willd. | Fabaceae | 8 |
| Inga uraguensis | Hook. & Arn. | Fabaceae | 8 |
| Ionopsis utricularioides | (Sw.) Lindl. | Orchidaceae | 8 |
| Ipomoea alba | L. | Convolvulaceae | 8 |
| Ipomoea amnicola | Morong | Convolvulaceae | 8 |
| Ipomoea asarifolia | (Desr.) Roem. & Schult. | Convolvulaceae | 8 |
| Ipomoea carnea | Jacq. | Convolvulaceae | 8 |
| Ipomoea corymbosa | (L.) Roth | Convolvulaceae | 8 |
| Ipomoea crinicalyx | S.Moore | Convolvulaceae | 8 |
| Ipomoea grandifolia | (Dammer) O'Donell | Convolvulaceae | 8 |
| Ipomoea hederifolia | L. | Convolvulaceae | 8 |
| Ipomoea heptaphylla | Sweet | Convolvulaceae | 8 |
| Ipomoea hieronymi | (Kuntze) O'Donell | Convolvulaceae | 8 |
| Ipomoea indica | (Burm.) Merr. | Convolvulaceae | 8 |
| Ipomoea nil | (L.) Roth | Convolvulaceae | 8 |
| Ipomoea platensis | Herb. ex Ker Gawl. | Convolvulaceae | 8 |
| Ipomoea purpurea | (L.) Roth | Convolvulaceae | 8 |
| Ipomoea rubriflora | O'Donell | Convolvulaceae | 8 |
| Ipomoea setifera | Poir. | Convolvulaceae | 8 |
| Iresine diffusa | Humb. & Bonpl. ex Willd. | Amaranthaceae | 8 |
| Iresine rhizomatosa | Standl. | Amaranthaceae | 8 |
| Isochilus linearis | (Jacq.) R.Br. | Orchidaceae | 8 |
| Jaborosa integrifolia | Lam. | Solanaceae | 8 |
| Jacaranda mimosifolia | D.Don | Bignoniaceae | 8 |
| Jacaratia spinosa | (Aubl.) A.DC. | Caricaceae | 8 |
| Jacquemontia evolvuloides | Meisn. | Convolvulaceae | 8 |
| Jacquemontia tamnifolia | (L.) Griseb. | Convolvulaceae | 8 |
| Jaegeria hirta | (Lag.) Less. | Asteraceae | 8 |
| Janusia guaranitica | (A.St.-Hil.) A.Juss. | Malpighiaceae | 8 |
| Jatropha curcas | L. | Euphorbiaceae | 8 |
| Jatropha elliptica | (Pohl) Oken | Euphorbiaceae | 8 |
| Jatropha gossypiifolia | L. | Euphorbiaceae | 8 |
| Jatropha grossidentata | Pax & K.Hoffm. | Euphorbiaceae | 8 |
| Jatropha hippocastanifolia | Croizat | Euphorbiaceae | 8 |
| Jatropha macrocarpa | Griseb. | Euphorbiaceae | 8 |
| Jodina rhombifolia | (Hook. & Arn.) Hook. & Arn. ex Reissek | Santalaceae | 8 |
| Juncus biflorus | Elliott | Juncaceae | 8 |
| Juncus bufonius | L. | Juncaceae | 8 |
| Juncus densiflorus | Kunth | Juncaceae | 8 |
| Juncus dichotomus | Elliott | Juncaceae | 8 |
| Juncus microcephalus | Kunth | Juncaceae | 8 |
| Jungia floribunda | Less. | Asteraceae | 8 |
| Justicia brasiliana | Roth | Acanthaceae | 8 |
| Justicia carnea | Lindl. | Acanthaceae | 8 |
| Justicia goudotii | V.A.W.Graham | Acanthaceae | 8 |
| Justicia squarrosa | Griseb. | Acanthaceae | 8 |
| Justicia xylosteoides | Griseb. | Acanthaceae | 8 |
| Kallstroemia tucumanensis | Descole, O'Donell & Lourteig | Zygophyllaceae | 8 |
| Kielmeyera coriacea | Mart. | Calophyllaceae | 8 |
| Krapovickasia flavescens | (Cav.) Fryxell | Malvaceae | 8 |
| Labatia gardneriana | (A.DC.) Alves-Araújo | Sapotaceae | 8 |
| Labatia salicifolia | Mart. | Sapotaceae | 8 |
| Lagascea mollis | Cav. | Asteraceae | 8 |
| Langsdorffia hypogaea | Mart. | Balanophoraceae | 8 |
| Lantana achyranthifolia | Desf. | Verbenaceae | 8 |
| Lantana canescens | Kunth | Verbenaceae | 8 |
| Lantana fucata | Lindl. | Verbenaceae | 8 |
| Lantana horrida | Kunth | Verbenaceae | 8 |
| Lantana montevidensis | (Spreng.) Briq. | Verbenaceae | 8 |
| Lantana trifolia | L. | Verbenaceae | 8 |
| Lantana velutina | M.Martens & Galeotti | Verbenaceae | 8 |
| Lasiacis divaricata | (L.) Hitchc. | Poaceae | 8 |
| Leersia hexandra | Sw. | Poaceae | 8 |
| Lemna aequinoctialis | Welw. | Araceae | 8 |
| Lemna minuta | Kunth | Araceae | 8 |
| Lepidagathis alopecuroidea | (Vahl) R.Br. ex Griseb. | Acanthaceae | 8 |
| Lepidium bonariense | L. | Brassicaceae | 8 |
| Lepidium didymum | L. | Brassicaceae | 8 |
| Lepismium cruciforme | (Vell.) Miq. | Cactaceae | 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 |
| Leptospron adenanthum | (G.Mey.) A.Delgado | Fabaceae | 8 |
| Leptostelma maximum | D.Don | Asteraceae | 8 |
| Lessingianthus rubricaulis | (Humb. & Bonpl.) H.Rob. | Asteraceae | 8 |
| Libidibia paraguariensis | (D.Parodi) G.P.Lewis | Fabaceae | 8 |
| Lilaeopsis carolinensis | J.M.Coult. & Rose | Apiaceae | 8 |
| Limnocharis flava | (L.) Buchenau | Alismataceae | 8 |
| Lindernia dubia | (L.) Pennell | Linderniaceae | 8 |
| Liparis nervosa | (Thunb.) Lindl. | Orchidaceae | 8 |
| Lippia alba | (Mill.) N.E.Br. ex Britton & P.Wilson | Verbenaceae | 8 |
| Lippia lupulina | Cham. | Verbenaceae | 8 |
| Lithraea molleoides | (Vell.) Engl. | Anacardiaceae | 8 |
| Lomariocycas tabularis | (Thunb.) Gasper & A.R.Sm. | Blechnaceae | 8 |
| Loudetiopsis chrysothrix | (Nees) Conert | Poaceae | 8 |
| Lucilia acutifolia | (Poir.) Cass. | Asteraceae | 8 |
| Ludwigia bonariensis | (Micheli) H.Hara | Onagraceae | 8 |
| Ludwigia decurrens | Walter | Onagraceae | 8 |
| Ludwigia elegans | (Cambess.) H.Hara | Onagraceae | 8 |
| Ludwigia erecta | (L.) H.Hara | Onagraceae | 8 |
| Ludwigia grandiflora | (Michx.) Greuter & Burdet | Onagraceae | 8 |
| Ludwigia hexapetala | (Hook. & Arn.) Zardini, H.Y.Gu & P.H.Raven | Onagraceae | 8 |
| Ludwigia leptocarpa | (Nutt.) H.Hara | Onagraceae | 8 |
| Ludwigia longifolia | (DC.) H.Hara | Onagraceae | 8 |
| Ludwigia major | (Micheli) Ramamoorthy | Onagraceae | 8 |
| Ludwigia octovalvis | (Jacq.) P.H.Raven | Onagraceae | 8 |
| Ludwigia peploides | (Kunth) P.H.Raven | Onagraceae | 8 |
| Ludwigia peruviana | (L.) H.Hara | Onagraceae | 8 |
| Ludwigia sedioides | (Humb. & Bonpl.) H.Hara | Onagraceae | 8 |
| Ludwigia sericea | (Cambess.) H.Hara | Onagraceae | 8 |
| Luehea divaricata | Mart. | Malvaceae | 8 |
| Luehea grandiflora | Mart. | Malvaceae | 8 |
| Lupinus albescens | Hook. & Arn. | Fabaceae | 8 |
| Lycianthes rantonnetii | (Carrière) Bitter | Solanaceae | 8 |
| Lycium americanum | Jacq. | Solanaceae | 8 |
| Lycium boerhaviifolium | L.f. | Solanaceae | 8 |
| Lycium chilense | Bertero | Solanaceae | 8 |
| Lycium tenuispinosum | Miers | Solanaceae | 8 |
| Lygodium venustum | Sw. | Lygodiaceae | 8 |
| Lysimachia minima | (L.) U.Manns & Anderb. | Primulaceae | 8 |
| Lysimachia ovalis | (Ruiz & Pav.) U.Manns & Anderb. | Primulaceae | 8 |
| Mabea fistulifera | Mart. | Euphorbiaceae | 8 |
| Machaerium hirtum | (Vell.) Stellfeld | Fabaceae | 8 |
| Maclura tinctoria | (L.) D.Don ex G.Don | Moraceae | 8 |
| Macroptilium bracteatum | (Nees & Mart.) Maréchal & Baudet | Fabaceae | 8 |
| Macroptilium lathyroides | (L.) Urb. | Fabaceae | 8 |
| Macroptilium prostratum | (Benth.) Urb. | Fabaceae | 8 |
| Malvastrum americanum | (L.) Torr. | Malvaceae | 8 |
| Malvastrum coromandelianum | (L.) Garcke | Malvaceae | 8 |
| Mandevilla coccinea | Woodson | Apocynaceae | 8 |
| Mandevilla hirsuta | (Rich.) K.Schum. | Apocynaceae | 8 |
| Mandevilla petraea | (A.St.-Hil.) Pichon | Apocynaceae | 8 |
| Manettia cordifolia | Mart. | Rubiaceae | 8 |
| Manihot grahamii | Hook. | Euphorbiaceae | 8 |
| Margaritaria nobilis | L.f. | Phyllanthaceae | 8 |
| Marsypianthes chamaedrys | (Vahl) Kuntze | Lamiaceae | 8 |
| Mayaca fluviatilis | Aubl. | Mayacaceae | 8 |
| Mayaca sellowiana | Kunth | Mayacaceae | 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 |
| Melochia parvifolia | Kunth | Malvaceae | 8 |
| Melochia pyramidata | L. | Malvaceae | 8 |
| Melothria pendula | L. | Cucurbitaceae | 8 |
| Meniscium serratum | Cav. | Thelypteridaceae | 8 |
| Menodora integrifolia | (Cham. & Schltdl.) Steud. | Oleaceae | 8 |
| Mentzelia aspera | L. | Loasaceae | 8 |
| Mesechites trifidus | (Jacq.) Müll.Arg. | Apocynaceae | 8 |
| Mesosphaerum suaveolens | (L.) Kuntze | Lamiaceae | 8 |
| Miconia albicans | (Sw.) Steud. | Melastomataceae | 8 |
| Miconia australis | (Cham.) R.Goldenb. | Melastomataceae | 8 |
| Miconia calvescens | DC. | Melastomataceae | 8 |
| Miconia chamissois | Naudin | Melastomataceae | 8 |
| Miconia crenata | (Vahl) Michelang. | Melastomataceae | 8 |
| Miconia prasina | (Sw.) DC. | Melastomataceae | 8 |
| Miconia stenostachya | 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 |
| Microlobius foetidus | (Jacq.) M.Sousa & G.Andrade | Fabaceae | 8 |
| Microstachys corniculata | (Vahl) A.Juss. ex Griseb. | Euphorbiaceae | 8 |
| Mikania cordifolia | (L.f.) Willd. | Asteraceae | 8 |
| Mikania micrantha | Kunth | Asteraceae | 8 |
| Mikania periplocifolia | Hook. & Arn. | Asteraceae | 8 |
| Miltonia flavescens | (Lindl.) Lindl. | Orchidaceae | 8 |
| Mimosa bimucronata | (DC.) Kuntze | Fabaceae | 8 |
| Mimosa candollei | R.Grether | Fabaceae | 8 |
| Mimosa castanoclada | Barneby & Fortunato | Fabaceae | 8 |
| Mimosa diplotricha | C.Wright | Fabaceae | 8 |
| Mimosa flagellaris | Benth. | Fabaceae | 8 |
| Mimosa glutinosa | Malme | Fabaceae | 8 |
| Mimosa pigra | L. | Fabaceae | 8 |
| Mimosa strigillosa | Torr. & A.Gray | Fabaceae | 8 |
| Mimosa tweedieana | Barneby ex Glazier & Mackinder | Fabaceae | 8 |
| Mimosa velloziana | Mart. | Fabaceae | 8 |
| Mionandra argentea | Griseb. | Malpighiaceae | 8 |
| Mitracarpus hirtus | (L.) DC. | Rubiaceae | 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 |
| 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 sagittifolia | (Ortega) Meisn. | Polygonaceae | 8 |
| Mutisia coccinea | A.St.-Hil. | Asteraceae | 8 |
| Myrceugenia glaucescens | (Cambess.) D.Legrand & Kausel | Myrtaceae | 8 |
| Myrcia palustris | DC. | Myrtaceae | 8 |
| Myrcia selloi | (Spreng.) N.Silveira | Myrtaceae | 8 |
| Myrcia splendens | (Sw.) DC. | Myrtaceae | 8 |
| Myrcianthes cisplatensis | (Cambess.) O.Berg | Myrtaceae | 8 |
| Myrcianthes pungens | (O.Berg) D.Legrand | Myrtaceae | 8 |
| Myriophyllum aquaticum | (Vell.) Verdc. | Haloragaceae | 8 |
| Myriopus rubicundus | (Salzm. ex DC.) Luebert | Heliotropiaceae | 8 |
| Myriopus salzmannii | (DC.) Diane & Hilger | Heliotropiaceae | 8 |
| Myrsine coriacea | (Sw.) R.Br. ex Roem. & Schult. | Primulaceae | 8 |
| Myrsine laetevirens | (Mez) Arechav. | Primulaceae | 8 |
| Myrsine lorentziana | (Mez) Arechav. | Primulaceae | 8 |
| Nanogalactia heterophylla | (Gillies ex Hook.) L.P.Queiroz | Fabaceae | 8 |
| Nassella neesiana | (Trin. & Rupr.) Barkworth | Poaceae | 8 |
| Nectandra angustifolia | (Schrad.) Nees & Mart. | Lauraceae | 8 |
| Neltuma affinis | (Spreng.) C.E.Hughes & G.P.Lewis | Fabaceae | 8 |
| Neltuma alba | (Griseb.) 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 plena | (L.) Benth. | Fabaceae | 8 |
| Nicotiana alata | Link & Otto | Solanaceae | 8 |
| Nicotiana glauca | Graham | Solanaceae | 8 |
| Nicotiana longiflora | Cav. | Solanaceae | 8 |
| Nierembergia aristata | D.Don | Solanaceae | 8 |
| Nierembergia linariifolia | Graham | Solanaceae | 8 |
| Niphidium crassifolium | (L.) Lellinger | Polypodiaceae | 8 |
| Nissolia fruticosa | Jacq. | Fabaceae | 8 |
| Nothoscordum gracile | (Aiton) Stearn | Amaryllidaceae | 8 |
| Noticastrum acuminatum | (DC.) Cuatrec. | Asteraceae | 8 |
| Nymphoides humboldtiana | (Kunth) Kuntze | Menyanthaceae | 8 |
| Ocimum campechianum | Mill. | Lamiaceae | 8 |
| Ocimum carnosum | (Spreng.) Link & Otto ex Benth. | Lamiaceae | 8 |
| Ocotea acutifolia | (Nees) Mez | Lauraceae | 8 |
| Ocotea puberula | (Rich.) Nees | Lauraceae | 8 |
| Oenothera affinis | Cambess. | Onagraceae | 8 |
| Oenothera indecora | Cambess. | Onagraceae | 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 monacantha | (Willd.) Haw. | Cactaceae | 8 |
| Opuntia pubescens | H.L.Wendl. ex Pfeiff. | Cactaceae | 8 |
| Opuntia quimilo | K.Schum. | Cactaceae | 8 |
| Opuntia retrorsa | Speg. | Cactaceae | 8 |
| Orthosia virgata | (Poir.) E.Fourn. | Apocynaceae | 8 |
| Osmunda spectabilis | Willd. | Osmundaceae | 8 |
| Osmundastrum cinnamomeum | (L.) C.Presl | Osmundaceae | 8 |
| Oxalis conorrhiza | Jacq. | Oxalidaceae | 8 |
| Oxalis debilis | Kunth | Oxalidaceae | 8 |
| Oxalis frutescens | L. | Oxalidaceae | 8 |
| Oxalis hispidula | Zucc. | Oxalidaceae | 8 |
| Oxalis niederleinii | R.Knuth | Oxalidaceae | 8 |
| Oxalis triangularis | A.St.-Hil. | Oxalidaceae | 8 |
| Oxypetalum arnottianum | H.Buek | Apocynaceae | 8 |
| Pachystachys dubiosa | (Lindau) A.L.A.Côrtes | Acanthaceae | 8 |
| Pacourina edulis | Aubl. | Asteraceae | 8 |
| Palhinhaea cernua | (L.) Vasc. & Franco | Lycopodiaceae | 8 |
| Palicourea crocea | (Sw.) Schult. | Rubiaceae | 8 |
| Palicourea croceoides | Ham. | Rubiaceae | 8 |
| Palicourea deflexa | (DC.) Borhidi | Rubiaceae | 8 |
| Palicourea gracilenta | (Müll.Arg.) Delprete & J.H.Kirkbr. | Rubiaceae | 8 |
| Palicourea leiocarpa | (Cham. & Schltdl.) Delprete | Rubiaceae | 8 |
| Palicourea rigida | Kunth | Rubiaceae | 8 |
| Panicum dichotomiflorum | Michx. | Poaceae | 8 |
| Pappophorum mucronulatum | Nees | Poaceae | 8 |
| Pappophorum pappiferum | (Lam.) Kuntze | Poaceae | 8 |
| Parapiptadenia rigida | (Benth.) Brenan | Fabaceae | 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 ottonis | (Lehm.) 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 paniculatum | L. | Poaceae | 8 |
| Paspalum plicatulum | Michx. | Poaceae | 8 |
| Paspalum quadrifarium | Lam. | Poaceae | 8 |
| Paspalum repens | P.J.Bergius | Poaceae | 8 |
| Paspalum urvillei | Steud. | Poaceae | 8 |
| Paspalum vaginatum | Sw. | Poaceae | 8 |
| Passiflora alata | Curtis | Passifloraceae | 8 |
| Passiflora amethystina | J.C.Mikan | Passifloraceae | 8 |
| Passiflora caerulea | L. | Passifloraceae | 8 |
| Passiflora capsularis | L. | Passifloraceae | 8 |
| Passiflora cincinnata | Mast. | Passifloraceae | 8 |
| Passiflora edulis | Sims | 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 |
| Paullinia pinnata | L. | Sapindaceae | 8 |
| Pavonia fruticosa | Fawc. & Rendle | Malvaceae | 8 |
| Pavonia hastata | Cav. | Malvaceae | 8 |
| Pavonia schiedeana | Steud. | Malvaceae | 8 |
| Pavonia sepium | A.St.-Hil. | Malvaceae | 8 |
| Pectis odorata | Griseb. | Asteraceae | 8 |
| Peltophorum dubium | (Spreng.) Taub. | Fabaceae | 8 |
| Peperomia increscens | Miq. | Piperaceae | 8 |
| Peperomia pellucida | (L.) Kunth | Piperaceae | 8 |
| Peperomia rotundifolia | (L.) Kunth | Piperaceae | 8 |
| Peperomia tetraphylla | (G.Forst.) Hook. & Arn. | Piperaceae | 8 |
| Peperomia urocarpa | Fisch. & C.A.Mey. | Piperaceae | 8 |
| Pera glabrata | (Schott) Poepp. ex Baill. | Peraceae | 8 |
| Pereskia aculeata | Mill. | Cactaceae | 8 |
| Pereskia sacharosa | Griseb. | Cactaceae | 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 |
| Petrea volubilis | L. | Verbenaceae | 8 |
| Petunia axillaris | (Lam.) Britton, Sterns & Poggenb. | Solanaceae | 8 |
| Petunia integrifolia | (Hook.) Schinz & Thell. | Solanaceae | 8 |
| Pfaffia glomerata | (Spreng.) Pedersen | Amaranthaceae | 8 |
| Pfaffia gnaphalioides | (L.f.) Mart. | Amaranthaceae | 8 |
| Pfaffia tuberosa | (Spreng.) Hicken | Amaranthaceae | 8 |
| Pharus lappulaceus | Aubl. | Poaceae | 8 |
| Philodendron bipinnatifidum | Schott ex Endl. | Araceae | 8 |
| Philodendron undulatum | Engl. | Araceae | 8 |
| Phlebodium decumanum | (Willd.) J.Sm. | Polypodiaceae | 8 |
| Phlebodium pseudoaureum | (Cav.) Lellinger | Polypodiaceae | 8 |
| Phoradendron bathyoryctum | Eichler | Santalaceae | 8 |
| Phoradendron piperoides | (Kunth) Trel. | Santalaceae | 8 |
| Phoradendron quadrangulare | (Kunth) Griseb. | Santalaceae | 8 |
| Phyla nodiflora | (L.) Greene | Verbenaceae | 8 |
| Phyllanthus amarus | Schumach. & Thonn. | Phyllanthaceae | 8 |
| Phyllanthus caroliniensis | Walter | Phyllanthaceae | 8 |
| Phyllanthus niruri | L. | Phyllanthaceae | 8 |
| Phyllanthus sellowianus | (Klotzsch) Müll.Arg. | Phyllanthaceae | 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 thyrsiflora | Fenzl ex J.A.Schmidt | Phytolaccaceae | 8 |
| Picrosia longifolia | D.Don | Asteraceae | 8 |
| Piper aduncum | L. | Piperaceae | 8 |
| Piper amalago | L. | Piperaceae | 8 |
| Piper hispidum | Sw. | Piperaceae | 8 |
| Piriqueta cistoides | (L.) Griseb. | Passifloraceae | 8 |
| Pisonia aculeata | L. | Nyctaginaceae | 8 |
| Pistia stratiotes | L. | Araceae | 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 heterophylla | Nutt. | Plantaginaceae | 8 |
| Plantago tomentosa | Lam. | Plantaginaceae | 8 |
| Pleopeltis hirsutissima | (Raddi) de la Sota | Polypodiaceae | 8 |
| Pleopeltis lepidopteris | (Langsd. & Fisch.) de la Sota | Polypodiaceae | 8 |
| Pleopeltis minima | (Bory) J.Prado & R.Y.Hirai | Polypodiaceae | 8 |
| Pleopeltis pleopeltifolia | (Raddi) Alston | Polypodiaceae | 8 |
| Pluchea sagittalis | (Lam.) Cabrera | Asteraceae | 8 |
| Plumbago zeylanica | L. | Plumbaginaceae | 8 |
| Podocoma hieraciifolia | (Poir.) Cass. | Asteraceae | 8 |
| Poikilacanthus glandulosus | (Nees) Ariza | Acanthaceae | 8 |
| Poiretia latifolia | Vogel | Fabaceae | 8 |
| Polycarpaea corymbosa | (L.) Lam. | Caryophyllaceae | 8 |
| Polycarpon tetraphyllum | (L.) L. | Caryophyllaceae | 8 |
| Polystachya foliosa | (Hook.) Rchb.f. | Orchidaceae | 8 |
| Pombalia bigibbosa | (A.St.-Hil.) Paula-Souza | Violaceae | 8 |
| Pombalia calceolaria | (L.) Paula-Souza | Violaceae | 8 |
| Pombalia communis | (A.St.-Hil.) Paula-Souza | Violaceae | 8 |
| Pombalia parviflora | (L.f.) Paula-Souza | Violaceae | 8 |
| Pontederia azurea | Sw. | Pontederiaceae | 8 |
| Pontederia cordata | L. | Pontederiaceae | 8 |
| Pontederia crassipes | Mart. | Pontederiaceae | 8 |
| Pontederia rotundifolia | L.f. | 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 umbraticola | Kunth | Portulacaceae | 8 |
| Potamogeton illinoensis | Morong | Potamogetonaceae | 8 |
| Pouteria gardneri | (Mart. & Miq.) Baehni | Sapotaceae | 8 |
| Praecereus euchlorus | (F.A.C.Weber ex K.Schum.) N.P.Taylor | Cactaceae | 8 |
| Praxelis clematidea | R.M.King & H.Rob. | Asteraceae | 8 |
| Prescottia stachyodes | (Sw.) Lindl. | Orchidaceae | 8 |
| Prestonia erecta | J.F.Morales | Apocynaceae | 8 |
| Pristimera celastroides | (Kunth) A.C.Sm. | Celastraceae | 8 |
| Priva lappulacea | (L.) Pers. | Verbenaceae | 8 |
| Pseudalbizzia inundata | (Mart.) E.J.M.Koenen & Duno | Fabaceae | 8 |
| Pseudobombax longiflorum | (Mart.) A.Robyns | Malvaceae | 8 |
| Pseudobombax tomentosum | (Mart. & Zucc.) A.Robyns | Malvaceae | 8 |
| Pseudognaphalium gaudichaudianum | (DC.) Anderb. | Asteraceae | 8 |
| Pseudogynoxys cabrerae | H.Rob. & Cuatrec. | Asteraceae | 8 |
| Psidium grandifolium | Mart. ex DC. | Myrtaceae | 8 |
| Psidium guineense | Sw. | Myrtaceae | 8 |
| Psidium salutare | (Kunth) O.Berg | Myrtaceae | 8 |
| Psiguria ternata | (M.Roem.) C.Jeffrey | Cucurbitaceae | 8 |
| Psilotum nudum | (L.) P.Beauv. | Psilotaceae | 8 |
| Psychotria carthagenensis | Jacq. | Rubiaceae | 8 |
| Pteridium esculentum | (G.Forst.) Cockayne | Dennstaedtiaceae | 8 |
| Pteris deflexa | Link | Pteridaceae | 8 |
| Pterocaulon balansae | Chodat | Asteraceae | 8 |
| Pterocaulon lorentzii | Malme | Asteraceae | 8 |
| Pterocaulon polystachyum | DC. | Asteraceae | 8 |
| Pterocaulon virgatum | (L.) DC. | Asteraceae | 8 |
| Pterogyne nitens | Tul. | Fabaceae | 8 |
| Pterolepis glomerata | (Rottb.) Miq. | Melastomataceae | 8 |
| Pyrostegia venusta | (Ker Gawl.) Miers | Bignoniaceae | 8 |
| Qualea grandiflora | Mart. | Vochysiaceae | 8 |
| Quiabentia verticillata | (Vaupel) Vaupel ex A.Berger | Cactaceae | 8 |
| Ranunculus apiifolius | Pers. | Ranunculaceae | 8 |
| Rhipsalis baccifera | (Sol. ex J.S.Muell.) Stearn | Cactaceae | 8 |
| Rhipsalis floccosa | Salm-Dyck ex Pfeiff. | Cactaceae | 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 barrosiana | Guagl. | Cyperaceae | 8 |
| Rhynchospora corymbosa | (L.) Britton | Cyperaceae | 8 |
| Rhynchospora holoschoenoides | (Rich.) Herter | Cyperaceae | 8 |
| Rhynchospora nervosa | (Vahl) Boeckeler | Cyperaceae | 8 |
| Richardia brasiliensis | Gomes | Rubiaceae | 8 |
| Richardia grandiflora | (Cham. & Schltdl.) Steud. | Rubiaceae | 8 |
| Richardia scabra | L. | Rubiaceae | 8 |
| Richardia stellaris | (Cham. & Schltdl.) Steud. | Rubiaceae | 8 |
| Rivina humilis | L. | Petiveriaceae | 8 |
| Rotala ramosior | (L.) Koehne | Lythraceae | 8 |
| Rubus sellowii | Cham. & Schltdl. | Rosaceae | 8 |
| Ruellia angustiflora | (Nees) Lindau ex Rambo | Acanthaceae | 8 |
| Ruellia brevifolia | (Pohl) C.Ezcurra | Acanthaceae | 8 |
| Ruellia ciliatiflora | Hook. | Acanthaceae | 8 |
| Ruellia erythropus | (Nees) Lindau | Acanthaceae | 8 |
| Ruellia macrosolen | Lillo ex C.Ezcurra | Acanthaceae | 8 |
| Ruellia morongii | Britton | Acanthaceae | 8 |
| Ruellia simplex | C.Wright | Acanthaceae | 8 |
| Ruppia maritima | L. | Ruppiaceae | 8 |
| Ruprechtia apetala | Wedd. | Polygonaceae | 8 |
| Sabdariffa furcellata | (Desr.) M.M.Hanes & R.L.Barrett | Malvaceae | 8 |
| Saccharum angustifolium | (Nees) Trin. | Poaceae | 8 |
| Sacoila lanceolata | (Aubl.) Garay | Orchidaceae | 8 |
| Sagittaria montevidensis | Cham. & Schltdl. | Alismataceae | 8 |
| Salacia crassifolia | (Mart.) G.Don | Celastraceae | 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 |
| Salta triflora | (Griseb.) Adr.Sanchez | Polygonaceae | 8 |
| Salvia coccinea | Buc'hoz ex Etl. | Lamiaceae | 8 |
| Salvia guaranitica | Dusén | Lamiaceae | 8 |
| Salvia pallida | Benth. | Lamiaceae | 8 |
| Salvinia biloba | Raddi | Salviniaceae | 8 |
| Salvinia minima | Baker | Salviniaceae | 8 |
| Sambucus australis | Cham. & Schltdl. | Viburnaceae | 8 |
| Samolus parviflorus | Raf. | Primulaceae | 8 |
| Sapindus saponaria | L. | Sapindaceae | 8 |
| Sapium glandulosum | (L.) Morong | Euphorbiaceae | 8 |
| Sapium haematospermum | Müll.Arg. | Euphorbiaceae | 8 |
| Sarcomphalus mistol | (Griseb.) Hauenschild | Rhamnaceae | 8 |
| Sauvagesia erecta | L. | Ochnaceae | 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 longifolia | Speg. | Anacardiaceae | 8 |
| Schinus molle | L. | Anacardiaceae | 8 |
| Schinus terebinthifolia | Raddi | Anacardiaceae | 8 |
| Schizachyrium microstachyum | (Desv.) Roseng., B.R.Arrill. & Izag. | Poaceae | 8 |
| Schizachyrium sanguineum | (Retz.) Alston | Poaceae | 8 |
| Schkuhria pinnata | (Lam.) Kuntze ex Thell. | Asteraceae | 8 |
| Schoenoplectus californicus | (C.A.Mey.) Soják | Cyperaceae | 8 |
| Schoenoplectus tabernaemontani | (C.C.Gmel.) Palla | Cyperaceae | 8 |
| Schultesia brachyptera | Cham. | Gentianaceae | 8 |
| Scleria ciliata | Michx. | Cyperaceae | 8 |
| Scleria distans | Poir. | Cyperaceae | 8 |
| Scleria gaertneri | Raddi | Cyperaceae | 8 |
| Scleria lacustris | C.Wright | Cyperaceae | 8 |
| Sclerophylax spinescens | Miers | Solanaceae | 8 |
| Scoparia dulcis | L. | Plantaginaceae | 8 |
| Scoparia montevidensis | (Spreng.) R.E.Fr. | Plantaginaceae | 8 |
| Scutellaria racemosa | Pers. | Lamiaceae | 8 |
| Sebastiania ramosissima | (A.St.-Hil.) A.L.Melo & M.F.Sales | Euphorbiaceae | 8 |
| Sebastiania schottiana | (Müll.Arg.) Müll.Arg. | Euphorbiaceae | 8 |
| Seemannia sylvatica | (Kunth) Hanst. | Gesneriaceae | 8 |
| Selaginella convoluta | (Arn.) Spring | Selaginellaceae | 8 |
| Selaginella sellowii | Hieron. | Selaginellaceae | 8 |
| Senecio brasiliensis | (Spreng.) Less. | Asteraceae | 8 |
| Senecio icoglossus | DC. | 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 alata | (L.) Roxb. | Fabaceae | 8 |
| Senna chloroclada | (Harms) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna corymbosa | (Lam.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna hirsuta | (L.) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna macranthera | (DC. ex Collad.) 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 |
| Senna rugosa | (G.Don) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna scabriuscula | (Vogel) H.S.Irwin & Barneby | Fabaceae | 8 |
| Senna spectabilis | (DC.) 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 punicea | (Cav.) Benth. | Fabaceae | 8 |
| Sesbania sesban | (L.) Merr. | Fabaceae | 8 |
| Sesbania virgata | (Cav.) Poir. | Fabaceae | 8 |
| Sesuvium portulacastrum | (L.) L. | Aizoaceae | 8 |
| Setaria parviflora | (Poir.) Kerguélen | Poaceae | 8 |
| Sida cordifolia | L. | Malvaceae | 8 |
| Sida linifolia | Cav. | Malvaceae | 8 |
| Sida spinosa | L. | Malvaceae | 8 |
| Sinningia allagophylla | (Mart.) Wiehler | Gesneriaceae | 8 |
| Sinningia sellovii | (Mart.) Wiehler | Gesneriaceae | 8 |
| Siphocampylus verticillatus | (Cham.) G.Don | Campanulaceae | 8 |
| Sisyrinchium micranthum | Cav. | Iridaceae | 8 |
| Sisyrinchium pachyrhizum | Baker | Iridaceae | 8 |
| Sisyrinchium platense | I.M.Johnst. | Iridaceae | 8 |
| Smallanthus connatus | (Spreng.) H.Rob. | Asteraceae | 8 |
| Smallanthus siegesbeckius | (DC.) H.Rob. | Asteraceae | 8 |
| Smilax campestris | Griseb. | Smilacaceae | 8 |
| Solanum aculeatissimum | Jacq. | Solanaceae | 8 |
| Solanum americanum | Mill. | Solanaceae | 8 |
| Solanum amygdalifolium | Steud. | Solanaceae | 8 |
| Solanum atropurpureum | Schrank | Solanaceae | 8 |
| Solanum chacoense | Bitter | Solanaceae | 8 |
| Solanum chenopodioides | Lam. | Solanaceae | 8 |
| Solanum elaeagnifolium | Cav. | Solanaceae | 8 |
| Solanum glaucophyllum | Desf. | Solanaceae | 8 |
| Solanum guaraniticum | A.St.-Hil. | Solanaceae | 8 |
| Solanum juvenale | Thell. | Solanaceae | 8 |
| Solanum laxum | Spreng. | Solanaceae | 8 |
| Solanum lycocarpum | A.St.-Hil. | Solanaceae | 8 |
| Solanum palinacanthum | Dunal | Solanaceae | 8 |
| Solanum pilcomayense | Morong | Solanaceae | 8 |
| Solanum pseudocapsicum | L. | Solanaceae | 8 |
| Solanum salicifolium | Phil. | Solanaceae | 8 |
| Solanum sanctae-catharinae | Dunal | Solanaceae | 8 |
| Solanum sarrachoides | Sendtn. | Solanaceae | 8 |
| Solanum sisymbriifolium | Lam. | Solanaceae | 8 |
| Solanum variabile | Mart. | Solanaceae | 8 |
| Solanum viarum | Dunal | 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 |
| Sparattosperma leucanthum | (Vell.) K.Schum. | Bignoniaceae | 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 latifolia | Aubl. | Rubiaceae | 8 |
| Spermacoce ocymifolia | Willd. | Rubiaceae | 8 |
| Spermacoce prostrata | Aubl. | Rubiaceae | 8 |
| Spermacoce remota | Lam. | Rubiaceae | 8 |
| Spermacoce verticillata | L. | Rubiaceae | 8 |
| Sphaeralcea bonariensis | (Cav.) Griseb. | 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 pyramidatus | (Lam.) Hitchc. | Poaceae | 8 |
| Stachytarpheta cayennensis | (Rich.) Vahl | Verbenaceae | 8 |
| Stachytarpheta indica | (L.) Vahl | Verbenaceae | 8 |
| Stapfochloa canterae | (Arechav.) P.M.Peterson | Poaceae | 8 |
| Stapfochloa ciliata | (Sw.) P.M.Peterson | Poaceae | 8 |
| Steinchisma hians | (Elliott) Nash | Poaceae | 8 |
| Stemodia durantifolia | (L.) Sw. | Plantaginaceae | 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 |
| Sticherus bifidus | (Willd.) Ching | Gleicheniaceae | 8 |
| Stigmaphyllon bonariense | (Hook. & Arn.) C.E.Anderson | Malpighiaceae | 8 |
| Stylosanthes guianensis | (Aubl.) Sw. | Fabaceae | 8 |
| Stylosanthes scabra | Vogel | Fabaceae | 8 |
| Stylosanthes viscosa | (L.) Sw. | Fabaceae | 8 |
| Syagrus romanzoffiana | (Cham.) Glassman | Arecaceae | 8 |
| Symplocos uniflora | (Pohl) Benth. | Symplocaceae | 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 |
| Tabernaemontana catharinensis | A.DC. | Apocynaceae | 8 |
| Tagetes minuta | L. | 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 |
| Tarenaya aculeata | (L.) Soares Neto & Roalson | Cleomaceae | 8 |
| Tarenaya houtteana | (Schltdl.) Soares Neto & Roalson | Cleomaceae | 8 |
| Tectaria incisa | Cav. | Tectariaceae | 8 |
| Telmatoblechnum serrulatum | (Rich.) Perrie, D.J.Ohlsen & Brownsey | Blechnaceae | 8 |
| Tephrosia cinerea | (L.) Pers. | Fabaceae | 8 |
| Terminalia australis | Cambess. | Combretaceae | 8 |
| Tessaria absinthioides | (Hook. & Arn.) DC. | Asteraceae | 8 |
| Tessaria fastigiata | (Griseb.) Cabrera | Asteraceae | 8 |
| Teucrium vesicarium | Mill. | Lamiaceae | 8 |
| Thalia geniculata | L. | Marantaceae | 8 |
| Tilesia baccata | (L.) Pruski | Asteraceae | 8 |
| Tillandsia aeranthos | (Loisel.) Desf. | Bromeliaceae | 8 |
| Tillandsia capillaris | Ruiz & Pav. | Bromeliaceae | 8 |
| Tillandsia didisticha | (É.Morren) Baker | Bromeliaceae | 8 |
| Tillandsia duratii | Vis. | Bromeliaceae | 8 |
| Tillandsia geminiflora | Brongn. | Bromeliaceae | 8 |
| Tillandsia ixioides | Griseb. | Bromeliaceae | 8 |
| Tillandsia loliacea | Mart. ex Schult. & Schult.f. | Bromeliaceae | 8 |
| Tillandsia lorentziana | Griseb. | Bromeliaceae | 8 |
| Tillandsia recurvata | (L.) L. | Bromeliaceae | 8 |
| Tillandsia recurvifolia | Hook. | Bromeliaceae | 8 |
| Tillandsia streptocarpa | Baker | Bromeliaceae | 8 |
| Tillandsia stricta | Sol. ex Ker Gawl. | Bromeliaceae | 8 |
| Tillandsia tenuifolia | L. | Bromeliaceae | 8 |
| Tillandsia tricholepis | Baker | Bromeliaceae | 8 |
| Tillandsia usneoides | (L.) L. | Bromeliaceae | 8 |
| Tinantia erecta | (Jacq.) Fenzl | Commelinaceae | 8 |
| Tocoyena formosa | (Cham. & Schltdl.) K.Schum. | Rubiaceae | 8 |
| Trachypogon spicatus | (L.f.) Kuntze | Poaceae | 8 |
| Tradescantia boliviana | (Hassk.) J.R.Grant | Commelinaceae | 8 |
| Tradescantia fluminensis | Vell. | Commelinaceae | 8 |
| Trema micranthum | (L.) Blume | Cannabaceae | 8 |
| Trianthema portulacastrum | L. | Aizoaceae | 8 |
| Trichilia hirta | L. | Meliaceae | 8 |
| Trichocentrum pumilum | (Lindl.) M.W.Chase & N.H.Williams | Orchidaceae | 8 |
| Trichocline reptans | Hieron. | Asteraceae | 8 |
| Trichogalium latoramosum | (Clos) Kadereit & Schneew. | Rubiaceae | 8 |
| Trichostigma octandrum | (L.) H.Walter | Petiveriaceae | 8 |
| Trimezia candida | (Hassl.) Ravenna | Iridaceae | 8 |
| Triodanis perfoliata | (L.) Nieuwl. | Campanulaceae | 8 |
| Tripodanthus acutifolius | (Ruiz & Pav.) Tiegh. | Loranthaceae | 8 |
| Tripogandra diuretica | (Mart.) Handlos | Commelinaceae | 8 |
| Tripogonella spicata | (Nees) P.M.Peterson & Romasch. | Poaceae | 8 |
| Triumfetta semitriloba | Jacq. | Malvaceae | 8 |
| Trixis cacalioides | D.Don | Asteraceae | 8 |
| Tropaeolum pentaphyllum | Lam. | Tropaeolaceae | 8 |
| Turnera grandiflora | (Urb.) Arbo | Passifloraceae | 8 |
| Turnera pumilea | L. | Passifloraceae | 8 |
| Turnera sidoides | L. | Passifloraceae | 8 |
| Tweedia brunonis | Hook. & Arn. | Apocynaceae | 8 |
| Typha domingensis | Pers. | Typhaceae | 8 |
| Typha latifolia | L. | Typhaceae | 8 |
| Urena lobata | L. | Malvaceae | 8 |
| Urera baccifera | (L.) Gaudich. ex Wedd. | Urticaceae | 8 |
| Urera caracasana | (Jacq.) Gaudich. ex Griseb. | Urticaceae | 8 |
| Urochloa platyphylla | (Munro ex C.Wright) R.D.Webster | Poaceae | 8 |
| Urolepis hecatantha | (DC.) R.M.King & H.Rob. | Asteraceae | 8 |
| Urvillea ulmacea | Kunth | Sapindaceae | 8 |
| Urvillea uniloba | Radlk. | Sapindaceae | 8 |
| Utricularia foliosa | L. | Lentibulariaceae | 8 |
| Utricularia gibba | L. | Lentibulariaceae | 8 |
| Utricularia hydrocarpa | Vahl | Lentibulariaceae | 8 |
| Utricularia laxa | A.St.-Hil. & Girard | Lentibulariaceae | 8 |
| Utricularia platensis | Speg. | Lentibulariaceae | 8 |
| Utricularia pusilla | Vahl | Lentibulariaceae | 8 |
| Utricularia simulans | Pilg. | Lentibulariaceae | 8 |
| Utricularia subulata | L. | Lentibulariaceae | 8 |
| Utricularia tricolor | A.St.-Hil. | Lentibulariaceae | 8 |
| Utricularia triloba | Benj. | Lentibulariaceae | 8 |
| Vachellia aroma | (Gillies ex Hook. & Arn.) Seigler & Ebinger | Fabaceae | 8 |
| Vachellia caven | (Molina) Seigler & Ebinger | Fabaceae | 8 |
| Vachellia farnesiana | (L.) Wight & Arn. | Fabaceae | 8 |
| Vachellia macracantha | (Humb. & Bonpl. ex Willd.) Seigler & Ebinger | Fabaceae | 8 |
| Valeriana scandens | L. | Caprifoliaceae | 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 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 montevidensis | Spreng. | 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 |
| Vernonanthura montevidensis | (Spreng.) H.Rob. | Asteraceae | 8 |
| Vernonia incana | Less. | Asteraceae | 8 |
| Victoria cruziana | Orbign. | Nymphaeaceae | 8 |
| Vigna longifolia | (Benth.) Verdc. | Fabaceae | 8 |
| Vigna luteola | (Jacq.) Benth. | Fabaceae | 8 |
| Vitex megapotamica | (Spreng.) Moldenke | Lamiaceae | 8 |
| Vittaria lineata | (L.) Sm. | Pteridaceae | 8 |
| Vochysia tucanorum | Mart. | Vochysiaceae | 8 |
| Voyria aphylla | (Jacq.) Pers. | Gentianaceae | 8 |
| Vriesea friburgensis | Mez | Bromeliaceae | 8 |
| Wahlenbergia linarioides | (Lam.) A.DC. | Campanulaceae | 8 |
| Waltheria indica | L. | Malvaceae | 8 |
| Wedelia glauca | (Ortega) Hoffm. | Asteraceae | 8 |
| Wolffia brasiliensis | Wedd. | Araceae | 8 |
| Wolffia columbiana | H.Karst. | Araceae | 8 |
| Wullschlaegelia aphylla | (Sw.) Rchb.f. | Orchidaceae | 8 |
| Xanthium orientale | L. | Asteraceae | 8 |
| Xanthium spinosum | L. | Asteraceae | 8 |
| Ximenia americana | L. | Olacaceae | 8 |
| Xylopia aromatica | (Lam.) Mart. | Annonaceae | 8 |
| Xylopia brasiliensis | Spreng. | Annonaceae | 8 |
| Xylosma venosa | N.E.Br. | Salicaceae | 8 |
| Xyris jupicai | Rich. | Xyridaceae | 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 candida | (Lindl.) Herb. | Amaryllidaceae | 8 |
| Zephyranthes mesochloa | Herb. | Amaryllidaceae | 8 |
| Zinnia peruviana | (L.) L. | Asteraceae | 8 |
| Zornia latifolia | Sm. | Fabaceae | 8 |
| Zornia reticulata | Sm. | Fabaceae | 8 |
| Baccharis oxyodonta | DC. | Asteraceae | 7 |
| Blumenbachia latifolia | Cambess. | Loasaceae | 7 |
| Brosimum gaudichaudii | Trécul | Moraceae | 7 |
| Burmannia flava | Mart. | Burmanniaceae | 7 |
| Calliandra parviflora | Benth. | Fabaceae | 7 |
| Campomanesia aurea | O.Berg | Myrtaceae | 7 |
| Carex bonariensis | Desf. ex Poir. | Cyperaceae | 7 |
| Casearia aculeata | Jacq. | Salicaceae | 7 |
| Centrosema sagittatum | (Humb. & Bonpl. ex Willd.) Brandegee | Fabaceae | 7 |
| Chloris radiata | (L.) Sw. | Poaceae | 7 |
| Christella hispidula | (Decne.) Holttum | Thelypteridaceae | 7 |
| Cissampelos tropaeolifolia | DC. | Menispermaceae | 7 |
| Croton hieronymi | Griseb. | Euphorbiaceae | 7 |
| Cuscuta xanthochortos | Mart. ex Engelm. | Convolvulaceae | 7 |
| Cyperus hortensis | (Salzm. ex Steud.) Dorr | Cyperaceae | 7 |
| Desmodium axillare | (Sw.) DC. | Fabaceae | 7 |
| Desmodium cuneatum | Hook. & Arn. | Fabaceae | 7 |
| Desmodium subsericeum | Malme | Fabaceae | 7 |
| Eleocharis bonariensis | Nees | Cyperaceae | 7 |
| Eleocharis nigrescens | (Nees) Kunth | Cyperaceae | 7 |
| Eryngium divaricatum | Hook. & Arn. | Apiaceae | 7 |
| Evolvulus convolvuloides | (Willd.) Stearn | Convolvulaceae | 7 |
| Fischeria stellata | (Vell.) E.Fourn. | Apocynaceae | 7 |
| Guarea macrophylla | Vahl | Meliaceae | 7 |
| Gyptis tanacetifolia | (Gillies ex Hook. & Arn.) D.J.N.Hind & Flann | Asteraceae | 7 |
| Helicteres brevispira | A.Juss. | Malvaceae | 7 |
| Hygrophila costata | Nees | Acanthaceae | 7 |
| Jacaranda micrantha | Cham. | Bignoniaceae | 7 |
| Morisonia salicifolia | (Griseb.) Christenh. & Byng | Capparaceae | 7 |
| Oldenlandia salzmannii | (DC.) Benth. & Hook.f. ex B.D.Jacks. | Rubiaceae | 7 |
| Olyra latifolia | L. | Poaceae | 7 |
| Ophioglossum nudicaule | L.f. | Ophioglossaceae | 7 |
| Passiflora tenuifila | Killip | Passifloraceae | 7 |
| Passiflora tricuspis | Mast. | Passifloraceae | 7 |
| Paullinia elegans | Cambess. | Sapindaceae | 7 |
| Persicaria meisneriana | (Cham. & Schltdl.) M.Gómez | Polygonaceae | 7 |
| Porophyllum lanceolatum | DC. | Asteraceae | 7 |
| Prestonia quinquangularis | (Jacq.) Spreng. | Apocynaceae | 7 |
| Pterocaulon angustifolium | DC. | Asteraceae | 7 |
| Rhabdadenia ragonesei | Woodson | Apocynaceae | 7 |
| Rubus urticifolius | Poir. | Rosaceae | 7 |
| Salpichlaena papyrus | G.G.Cárdenas, Tuomisto & Lehtonen | Blechnaceae | 7 |
| Senegalia emilioana | (Fortunato & Ciald.) Seigler & Ebinger | Fabaceae | 7 |
| Senna velutina | (Vogel) H.S.Irwin & Barneby | Fabaceae | 7 |
| Sicyos polyacanthos | Cogn. | Cucurbitaceae | 7 |
| Sinningia elatior | (Kunth) Chautems | Gesneriaceae | 7 |
| Siparuna guianensis | Aubl. | Siparunaceae | 7 |
| Sisyrinchium palmifolium | L. | Iridaceae | 7 |
| Sisyrinchium vaginatum | Spreng. | Iridaceae | 7 |
| Solanum symmetricum | Rusby | Solanaceae | 7 |
| Staelia virgata | (Willd.) K.Schum. | Rubiaceae | 7 |
| Tillandsia bandensis | Baker | Bromeliaceae | 7 |
| Tillandsia minutiflora | Donadio | Bromeliaceae | 7 |
| Tillandsia xiphioides | Ker Gawl. | Bromeliaceae | 7 |
| Trichilia elegans | A.Juss. | Meliaceae | 7 |
| Trifolium polymorphum | Poir. | Fabaceae | 7 |
| Verbena intermedia | Gillies & Hook. | Verbenaceae | 7 |
| Adiantum tetraphyllum | Humb. & Bonpl. ex Willd. | Pteridaceae | 6 |
| Alternanthera albida | (Moq.) Griseb. | Amaranthaceae | 6 |
| Araujia stormiana | Morong | Apocynaceae | 6 |
| Asclepias candida | Vell. | Apocynaceae | 6 |
| Ayenia pedersenii | (Cristóbal) Christenh. & Byng | Malvaceae | 6 |
| Bacopa rotundifolia | (Michx.) Wettst. | Plantaginaceae | 6 |
| Billbergia zebrina | (Herb.) Lindl. | Bromeliaceae | 6 |
| Cabralea canjerana | (Vell.) Mart. | Meliaceae | 6 |
| Calea cymosa | Less. | Asteraceae | 6 |
| Campomanesia xanthocarpa | (Mart.) O.Berg | Myrtaceae | 6 |
| Canavalia brasiliensis | Mart. ex Benth. | Fabaceae | 6 |
| Ceiba pubiflora | (A.St.-Hil.) K.Schum. | Malvaceae | 6 |
| Celtis spinosa | Spreng. | Cannabaceae | 6 |
| Chaptalia sinuata | Vent. ex Steud. | Asteraceae | 6 |
| Chevreulia acuminata | Less. | Asteraceae | 6 |
| Chloroluma gonocarpa | (Mart. & Eichler ex Miq.) Baill. ex Aubrév. | Sapotaceae | 6 |
| Cienfuegosia affinis | (Kunth) Hochr. | Malvaceae | 6 |
| Commelina platyphylla | Klotzsch | Commelinaceae | 6 |
| Coutarea hexandra | (Jacq.) K.Schum. | Rubiaceae | 6 |
| Croton argenteus | L. | Euphorbiaceae | 6 |
| Cuphea antisyphilitica | Kunth | Lythraceae | 6 |
| Cuphea calophylla | Cham. & Schltdl. | Lythraceae | 6 |
| Cuphea melvilla | Lindl. | Lythraceae | 6 |
| Dianthera laevilinguis | (Nees) Lindau | Acanthaceae | 6 |
| Diodia saponariifolia | (Cham. & Schltdl.) K.Schum. | Rubiaceae | 6 |
| Doryopteris triphylla | (Lam.) Christ | Pteridaceae | 6 |
| Euploca filiformis | (Lehm.) J.I.M.Melo & Semir | Heliotropiaceae | 6 |
| Evolvulus cardiophyllus | Schltdl. | Convolvulaceae | 6 |
| Funastrum gracile | (Decne.) Schltr. | Apocynaceae | 6 |
| Ilex theezans | Mart. | Aquifoliaceae | 6 |
| Lantana viscosa | Pohl ex Schauer | Verbenaceae | 6 |
| Lilaeopsis minor | (A.W.Hill) Pérez-Mor. | Apiaceae | 6 |
| Lobelia xalapensis | Kunth | Campanulaceae | 6 |
| Lomariocycas schomburgkii | (Klotzsch) Gasper & A.R.Sm. | Blechnaceae | 6 |
| Lycianthes repens | (Spreng.) Bitter | Solanaceae | 6 |
| Magonia pubescens | A.St.-Hil. | Sapindaceae | 6 |
| Mimosa detinens | Benth. | Fabaceae | 6 |
| Mitracarpus megapotamicus | (Spreng.) Kuntze | Rubiaceae | 6 |
| Neltuma rubriflora | (Hassl.) C.E.Hughes & G.P.Lewis | Fabaceae | 6 |
| Nissolia brasiliensis | (Vogel) T.M.Moura & Fort.-Perez | Fabaceae | 6 |
| Oenothera parodiana | Munz | Onagraceae | 6 |
| Parablechnum cordatum | (Desv.) Gasper & Salino | Blechnaceae | 6 |
| Parodia linkii | (Lehm.) R.Kiesling | Cactaceae | 6 |
| Passiflora chrysophylla | Chodat | Passifloraceae | 6 |
| Peperomia aceroana | C.DC. | Piperaceae | 6 |
| Phalaris angusta | Nees ex Trin. | Poaceae | 6 |
| Picrosia cabreriana | A.G.Schulz | Asteraceae | 6 |
| Polystichum montevidense | (Spreng.) Rosenst. | Dryopteridaceae | 6 |
| Portulaca mucronata | Link | Portulacaceae | 6 |
| Prescottia oligantha | (Sw.) Lindl. | Orchidaceae | 6 |
| Prockia crucis | P.Browne ex L. | Salicaceae | 6 |
| Pterocaulon cordobense | Kuntze | Asteraceae | 6 |
| Qualea parviflora | Mart. | Vochysiaceae | 6 |
| Rhamnidium elaeocarpum | Reissek | Rhamnaceae | 6 |
| Rubus erythroclados | Mart. ex Hook.f. | Rosaceae | 6 |
| Rubus neobrasiliensis | Espinel-Ortiz, Böhnert, Romol. & Weigend | Rosaceae | 6 |
| Sageretia elegans | (Kunth) Brongn. | Rhamnaceae | 6 |
| Salmea scandens | (L.) DC. | Asteraceae | 6 |
| Sanvitalia versicolor | Griseb. | Asteraceae | 6 |
| Schultesia guianensis | (Aubl.) Malme | Gentianaceae | 6 |
| Senegalia tucumanensis | (Griseb.) Seigler & Ebinger | Fabaceae | 6 |
| Senna aculeata | (Pohl ex Benth.) H.S.Irwin & Barneby | Fabaceae | 6 |
| Solanum hieronymi | Kuntze | Solanaceae | 6 |
| Sorocea bonplandii | (Baill.) W.C.Burger, Lanj. & Wess.Boer | Moraceae | 6 |
| Spathicarpa hastifolia | Hook. | Araceae | 6 |
| Tragia volubilis | L. | Euphorbiaceae | 6 |
| Trimezia coerulea | (G.Lodd.) Ravenna | Iridaceae | 6 |
| Tripogandra glandulosa | (Seub.) Rohweder | Commelinaceae | 6 |
| Trixis lessingii | DC. | Asteraceae | 6 |
| Vernonanthura chamaedrys | (Less.) H.Rob. | Asteraceae | 6 |
| Wilbrandia verticillata | (Vell.) Cogn. | Cucurbitaceae | 6 |
| Achatocarpus praecox | Griseb. | Achatocarpaceae | 5 |
| Aeschynomene denticulata | Rudd | Fabaceae | 5 |
| Aeschynomene rudis | Benth. | Fabaceae | 5 |
| Aiouea amoena | (Nees & Mart.) R.Rohde | Lauraceae | 5 |
| Amphipetalum paraguayense | Bacig. | Talinaceae | 5 |
| Aristolochia macroura | Ortega | Aristolochiaceae | 5 |
| Asemeia violacea | (Aubl.) J.F.B.Pastore & J.R.Abbott | Polygalaceae | 5 |
| Asplenium balansae | (Baker) Sylvestre | Aspleniaceae | 5 |
| Asplenium serratum | L. | Aspleniaceae | 5 |
| Bacopa salzmannii | (Benth.) Edwall | Plantaginaceae | 5 |
| Bauhinia bauhinioides | (Mart.) J.F.Macbr. | Fabaceae | 5 |
| Blechnum polypodioides | Raddi | Blechnaceae | 5 |
| Bothriochloa springfieldii | (Gould) Parodi | Poaceae | 5 |
| Calea pinnatifida | Banks ex Steud. | Asteraceae | 5 |
| Callaeum psilophyllum | (A.Juss.) D.M.Johnson | Malpighiaceae | 5 |
| Calliandra brevicaulis | Micheli | Fabaceae | 5 |
| Calliandra longipes | Benth. | Fabaceae | 5 |
| Canavalia ensiformis | (L.) DC. | Fabaceae | 5 |
| Caperonia cordata | A.St.-Hil. | Euphorbiaceae | 5 |
| Carex chilensis | Brongn. | Cyperaceae | 5 |
| Carex polysticha | Boeckeler | Cyperaceae | 5 |
| Chamaecrista repens | (Vogel) H.S.Irwin & Barneby | Fabaceae | 5 |
| Chloropetalum denticulatum | (Vahl) Morillo | Apocynaceae | 5 |
| Cissampelos ovalifolia | DC. | Menispermaceae | 5 |
| Citronella gongonha | (Mart.) R.A.Howard | Cardiopteridaceae | 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 |
| Crotalaria maypurensis | Kunth | Fabaceae | 5 |
| Cuphea lysimachioides | Cham. & Schltdl. | Lythraceae | 5 |
| Cuphea tuberosa | Cham. & Schltdl. | Lythraceae | 5 |
| Cyclopogon congestus | (Vell.) Hoehne | Orchidaceae | 5 |
| Cyperus laxus | Lam. | Cyperaceae | 5 |
| Cyperus reflexus | Vahl | Cyperaceae | 5 |
| Denisophytum stuckertii | (Hassl.) Gagnon & G.P.Lewis | Fabaceae | 5 |
| Desmodium affine | Schltdl. | Fabaceae | 5 |
| Dipteryx alata | Vogel | Fabaceae | 5 |
| Dorstenia cayapia | Vell. | Moraceae | 5 |
| Eleocharis flavescens | (Poir.) Urb. | Cyperaceae | 5 |
| Encyclia linearifolioides | (Kraenzl.) Hoehne | Orchidaceae | 5 |
| Eriope crassipes | Benth. | Lamiaceae | 5 |
| Euphorbia klotzschii | Oudejans | Euphorbiaceae | 5 |
| Euploca campestris | (Griseb.) Diane & Hilger | Heliotropiaceae | 5 |
| Eupodium pittieri | (Maxon) Christenh. | Marattiaceae | 5 |
| Fridericia platyphylla | (Cham.) L.G.Lohmann | Bignoniaceae | 5 |
| Galeandra beyrichii | Rchb.f. | Orchidaceae | 5 |
| Galianthe centranthoides | (Cham. & Schltdl.) E.L.Cabral | Rubiaceae | 5 |
| Galianthe laxa | (Cham. & Schltdl.) E.L.Cabral | Rubiaceae | 5 |
| Gamochaeta falcata | (Lam.) Cabrera | Asteraceae | 5 |
| Gymnocalycium friedrichii | (Werderm.) Pazout | Cactaceae | 5 |
| Hexasepalum radulum | (Willd.) Delprete & J.H.Kirkbr. | Rubiaceae | 5 |
| Hypenia macrantha | (A.St.-Hil. ex Benth.) Harley | Lamiaceae | 5 |
| Ipomoea bonariensis | Hook. | Convolvulaceae | 5 |
| Isostigma peucedanifolium | (Spreng.) Less. | Asteraceae | 5 |
| Jacquemontia cumanensis | (Kunth) Kuntze | Convolvulaceae | 5 |
| Jacquemontia velutina | Choisy | Convolvulaceae | 5 |
| Jatropha excisa | Griseb. | Euphorbiaceae | 5 |
| Justicia floribunda | (J.J.Veitch) Wassh. | Acanthaceae | 5 |
| Lindsaea lancea | (L.) Bedd. | Lindsaeaceae | 5 |
| Linum selaginoides | Lam. | Linaceae | 5 |
| Lippia turnerifolia | Cham. | Verbenaceae | 5 |
| Lobelia aquatica | Cham. | Campanulaceae | 5 |
| Lonchocarpus nitidus | (Vogel) Benth. | Fabaceae | 5 |
| Manihot anisophylla | Müll.Arg. | Euphorbiaceae | 5 |
| Maxillaria picta | Hook. | Orchidaceae | 5 |
| Melothria trilobata | Cogn. | Cucurbitaceae | 5 |
| Microstachys serrulata | (Mart. & Zucc.) Müll.Arg. | Euphorbiaceae | 5 |
| Mimosa somnians | Humb. & Bonpl. ex Willd. | Fabaceae | 5 |
| Mimozyganthus carinatus | (Griseb.) Burkart | Fabaceae | 5 |
| Myrcia oblongata | DC. | Myrtaceae | 5 |
| Oxypetalum pannosum | Decne. | Apocynaceae | 5 |
| Pavonia missionum | Ekman | Malvaceae | 5 |
| Persicaria hispida | (Kunth) M.Gómez | Polygonaceae | 5 |
| Phenax sonneratii | (Poir.) Wedd. | Urticaceae | 5 |
| Phyllanthus chacoensis | Morong | Phyllanthaceae | 5 |
| Pilea pubescens | Liebm. | Urticaceae | 5 |
| Pseudabutilon virgatum | (Cav.) Fryxell | Malvaceae | 5 |
| Pseudalbizzia niopoides | (Spruce ex Benth.) E.J.M.Koenen & Duno | Fabaceae | 5 |
| Pseudechinolaena polystachya | (Kunth) Stapf | Poaceae | 5 |
| Pterocaulon purpurascens | Malme | Asteraceae | 5 |
| Qualea multiflora | Mart. | Vochysiaceae | 5 |
| Ranunculus flagelliformis | Sm. | Ranunculaceae | 5 |
| Rhynchospora consanguinea | (Kunth) Boeckeler | Cyperaceae | 5 |
| Rhynchospora rugosa | (Vahl) Gale | Cyperaceae | 5 |
| Sarcomphalus joazeiro | (Mart.) Hauenschild | Rhamnaceae | 5 |
| Senecio pinnatus | Poir. | Asteraceae | 5 |
| Senna georgica | H.S.Irwin & Barneby | Fabaceae | 5 |
| Sida glabra | Mill. | Malvaceae | 5 |
| Solanum malmeanum | Bitter | Solanaceae | 5 |
| Solanum tweedieanum | Hook. | Solanaceae | 5 |
| Spermacoce suaveolens | (G.Mey.) Kuntze | Rubiaceae | 5 |
| Stachytarpheta gesnerioides | Cham. | Verbenaceae | 5 |
| Stigmaphyllon jatrophifolium | A.Juss. | Malpighiaceae | 5 |
| Struthanthus uraguensis | (Hook. & Arn.) G.Don | Loranthaceae | 5 |
| Tabebuia roseoalba | (Ridl.) Sandwith | Bignoniaceae | 5 |
| Uncaria guianensis | (Aubl.) J.F.Gmel. | Rubiaceae | 5 |
| Urtica circularis | (Hicken) Sorarú | Urticaceae | 5 |
| Utricularia nervosa | Weber ex Benj. | Lentibulariaceae | 5 |
| Vachellia astringens | (Gillies ex Hook. & Arn.) Speg. | Fabaceae | 5 |
| Vailia picta | (Vahl) Morillo | Apocynaceae | 5 |
| Verbena gracilescens | (Cham.) Herter | Verbenaceae | 5 |
| Verbena nana | Moldenke | Verbenaceae | 5 |
| Vernonanthura tweedieana | (Baker) H.Rob. | Asteraceae | 5 |
| Vitex cymosa | Bertero ex Spreng. | Lamiaceae | 5 |
| Vriesea procera | (Mart. ex Schult. & Schult.f.) Wittm. | Bromeliaceae | 5 |
| Waltheria communis | A.St.-Hil. | Malvaceae | 5 |
| Adenocalymma marginatum | (Cham.) DC. | Bignoniaceae | 4 |
| Adenostemma brasilianum | (Pers.) Cass. | Asteraceae | 4 |
| Agrostis montevidensis | Spreng. ex Nees | Poaceae | 4 |
| Allagoptera campestris | (Mart.) Kuntze | Arecaceae | 4 |
| Anemopaegma glaucum | Mart. ex DC. | Bignoniaceae | 4 |
| Annona emarginata | (Schltdl.) H.Rainer | Annonaceae | 4 |
| Aristolochia esperanzae | Kuntze | Aristolochiaceae | 4 |
| Ayenia eliae | Cristóbal | Malvaceae | 4 |
| Billbergia porteana | Brongn. ex Beer | Bromeliaceae | 4 |
| Bletia catenulata | Ruiz & Pav. | Orchidaceae | 4 |
| Butia paraguayensis | (Barb.Rodr.) L.H.Bailey | Arecaceae | 4 |
| Campovassouria cruciata | (Vell.) R.M.King & H.Rob. | Asteraceae | 4 |
| Campylocentrum densiflorum | Cogn. | Orchidaceae | 4 |
| Cariniana estrellensis | (Raddi) Kuntze | Lecythidaceae | 4 |
| Castellanosia caineana | Cárdenas | Cactaceae | 4 |
| Cenchrus nervosus | (Nees) Kuntze | Poaceae | 4 |
| Cestrum mariquitense | Kunth | Solanaceae | 4 |
| Chaetogastra nitida | (Graham) P.J.F.Guim. & Michelang. | Melastomataceae | 4 |
| Chaptalia runcinata | Kunth | Asteraceae | 4 |
| Chiococca nitida | Benth. | Rubiaceae | 4 |
| Chromolaena christieana | (Baker) R.M.King & H.Rob. | Asteraceae | 4 |
| Chromolaena squarrulosa | (Hook. & Arn.) R.M.King & H.Rob. | Asteraceae | 4 |
| Clematis acapulcensis | Hook. & Arn. | Ranunculaceae | 4 |
| Corchorus orinocensis | Kunth | Malvaceae | 4 |
| Corymborkis flava | (Sw.) Kuntze | Orchidaceae | 4 |
| Ctenodon histrix | (Poir.) D.B.O.S.Cardoso, P.L.R.Moraes & H.C.Lima | Fabaceae | 4 |
| Declieuxia fruticosa | (Willd.) Kuntze | Rubiaceae | 4 |
| Deinacanthon urbanianum | (Mez) Mez | Bromeliaceae | 4 |
| Desmodium distortum | (Aubl.) J.F.Macbr. | Fabaceae | 4 |
| Desmoscelis villosa | (Aubl.) Naudin | Melastomataceae | 4 |
| Epidendrum hassleri | Cogn. | Orchidaceae | 4 |
| Epistephium sclerophyllum | Lindl. | Orchidaceae | 4 |
| Erythrina velutina | Willd. | Fabaceae | 4 |
| Evolvulus barbatus | Meisn. | Convolvulaceae | 4 |
| Fridericia truncata | (Sprague) L.G.Lohmann | Bignoniaceae | 4 |
| Galianthe fastigiata | Griseb. | Rubiaceae | 4 |
| Gamochaeta simplicicaulis | (Willd. ex Spreng.) Cabrera | Asteraceae | 4 |
| Gaylussacia brasiliensis | (Spreng.) Meisn. | Ericaceae | 4 |
| Glechon marifolia | Benth. | Lamiaceae | 4 |
| Gymnocalycium anisitsii | (K.Schum.) Britton & Rose | Cactaceae | 4 |
| Hatschbachiella tweedieana | (Hook. ex Arn.) R.M.King & H.Rob. | Asteraceae | 4 |
| Hedyosmum brasiliense | Mart. | Chloranthaceae | 4 |
| Helanthium tenellum | (Mart. ex Schult.f.) Britton | Alismataceae | 4 |
| Heliotropium transalpinum | Vell. | Heliotropiaceae | 4 |
| Herissantia tiubae | (K.Schum.) Brizicky | Malvaceae | 4 |
| Heteranthera rotundifolia | (Kunth) Griseb. | Pontederiaceae | 4 |
| Heteranthera zosterifolia | Mart. | Pontederiaceae | 4 |
| Heteropterys dumetorum | (Griseb.) Nied. | Malpighiaceae | 4 |
| Hippeastrum aulicum | (Ker Gawl.) Herb. | Amaryllidaceae | 4 |
| Ipomoea malvaeoides | Meisn. | Convolvulaceae | 4 |
| Isabelia virginalis | Barb.Rodr. | Orchidaceae | 4 |
| Jatropha hieronymi | Kuntze | Euphorbiaceae | 4 |
| Lepidaploa remotiflora | (Rich.) H.Rob. | Asteraceae | 4 |
| Leptotes unicolor | Barb.Rodr. | Orchidaceae | 4 |
| Lygodium volubile | Sw. | Lygodiaceae | 4 |
| Macroptilium erythroloma | (Mart. ex Benth.) Urb. | Fabaceae | 4 |
| Melica sarmentosa | Nees | Poaceae | 4 |
| Miconia cinerascens | Miq. | Melastomataceae | 4 |
| Morisonia retusa | (Griseb.) Christenh. & Byng | Capparaceae | 4 |
| Myracrodruon balansae | (Engl.) Santin | Anacardiaceae | 4 |
| Nectandra cuspidata | Nees & Mart. | Lauraceae | 4 |
| Nectandra hihua | (Ruiz & Pav.) Rohwer | Lauraceae | 4 |
| Nicotiana langsdorffii | Weinm. | Solanaceae | 4 |
| Palicourea tenerior | (Cham.) Delprete & J.H.Kirkbr. | Rubiaceae | 4 |
| Pavonia sidifolia | Kunth | Malvaceae | 4 |
| Phoradendron dipterum | Eichler | Santalaceae | 4 |
| Phyllostylon rhamnoides | (J.Poiss.) Taub. | Ulmaceae | 4 |
| Piper mollicomum | Kunth | Piperaceae | 4 |
| Plagiocheilus tanacetoides | Haenke ex DC. | Asteraceae | 4 |
| Plathymenia reticulata | Benth. | Fabaceae | 4 |
| Podocoma hirsuta | Baker | Asteraceae | 4 |
| Porophyllum obscurum | (Spreng.) DC. | Asteraceae | 4 |
| Prosopanche bonacinae | Speg. | Aristolochiaceae | 4 |
| Rotala mexicana | Schltdl. & Cham. | Lythraceae | 4 |
| Rubus megalococcus | Focke | Rosaceae | 4 |
| Rudgea parquioides | (Cham.) Müll.Arg. | Rubiaceae | 4 |
| Ruprechtia laxiflora | Meisn. | Polygonaceae | 4 |
| Sagittaria guayanensis | Kunth | Alismataceae | 4 |
| Salvinia auriculata | Aubl. | Salviniaceae | 4 |
| Samanea tubulosa | (Benth.) Barneby & J.W.Grimes | Fabaceae | 4 |
| Schinopsis brasiliensis | Engl. | Anacardiaceae | 4 |
| Schizachyrium condensatum | (Kunth) Nees | Poaceae | 4 |
| Scleria microcarpa | Nees ex Kunth | Cyperaceae | 4 |
| Setaria macrostachya | Kunth | Poaceae | 4 |
| Sida dubia | A.St.-Hil. & Naudin | Malvaceae | 4 |
| Sidastrum paniculatum | (L.) Fryxell | Malvaceae | 4 |
| Sphinctanthus microphyllus | K.Schum. | Rubiaceae | 4 |
| Steinchisma laxum | (Sw.) Zuloaga | Poaceae | 4 |
| Stenandrium mandioccanum | Nees | Acanthaceae | 4 |
| Stylosanthes humilis | Kunth | Fabaceae | 4 |
| Styrax leprosus | Hook. & Arn. | Styracaceae | 4 |
| Tanaecium selloi | (Spreng.) L.G.Lohmann | Bignoniaceae | 4 |
| Tillandsia pohliana | Mez | Bromeliaceae | 4 |
| Tradescantia tucumanensis | M.Pell. | Commelinaceae | 4 |
| Trichilia pallida | Sw. | Meliaceae | 4 |
| Trigonia nivea | Cambess. | Trigoniaceae | 4 |
| Trimezia gracilis | (Herb.) Christenh. & Byng | Iridaceae | 4 |
| Trixis antimenorrhoea | (Schrank) Kuntze | Asteraceae | 4 |
| Urera aurantiaca | Wedd. | Urticaceae | 4 |
| Urospatha sagittifolia | Schott | Araceae | 4 |
| Vachellia albicorticata | (Burkart) Seigler & Ebinger | Fabaceae | 4 |
| Verbena megapotamica | Spreng. | Verbenaceae | 4 |
| Verbesina subcordata | DC. | Asteraceae | 4 |
| Waltheria operculata | Rose | Malvaceae | 4 |
| Xyris laxifolia | Mart. | Xyridaceae | 4 |
| Abutilon umbelliflorum | A.St.-Hil. | Malvaceae | 3 |
| Achyrocline flaccida | (Weinm.) DC. | Asteraceae | 3 |
| Adiantum deflectens | Mart. | Pteridaceae | 3 |
| Allobriquetia spicata | (Kunth) Bovini | Malvaceae | 3 |
| Alsophila cuspidata | (Kunze) D.S.Conant | Cyatheaceae | 3 |
| Alstroemeria foliosa | Mart. | Alstroemeriaceae | 3 |
| Andropogon tener | (Nees) Kunth | Poaceae | 3 |
| Annona nutans | (R.E.Fr.) R.E.Fr. | Annonaceae | 3 |
| Arachis duranensis | Krapov. & W.C.Greg. | Fabaceae | 3 |
| Aristolochia angustifolia | Cham. | Aristolochiaceae | 3 |
| Aristolochia lindneri | A.Berger | Aristolochiaceae | 3 |
| Aspidosperma triternatum | Rojas Acosta | Apocynaceae | 3 |
| Aspilia pascalioides | Griseb. | Asteraceae | 3 |
| Asplenium sellowianum | (Hieron.) Hieron. | Aspleniaceae | 3 |
| Calycophyllum multiflorum | Griseb. | Rubiaceae | 3 |
| Campomanesia guaviroba | (DC.) Bertoni | Myrtaceae | 3 |
| Capsicum baccatum | L. | Solanaceae | 3 |
| Cattleya cernua | (Lindl.) Van den Berg | Orchidaceae | 3 |
| Ceiba samauma | (Mart.) K.Schum. | Malvaceae | 3 |
| Celtis chichape | (Wedd.) Miq. | Cannabaceae | 3 |
| Cenostigma pluviosum | (DC.) Gagnon & G.P.Lewis | Fabaceae | 3 |
| Ceratopteris pteridoides | (Hook.) Hieron. | Pteridaceae | 3 |
| Chevreulia sarmentosa | (Pers.) S.F.Blake | Asteraceae | 3 |
| Chloroleucon tenuiflorum | (Benth.) Barneby & J.W.Grimes | Fabaceae | 3 |
| Coccocypselum guianense | (Aubl.) K.Schum. | Rubiaceae | 3 |
| Corchorus hirtus | L. | Malvaceae | 3 |
| Cyathea atrovirens | (Langsd. & Fisch.) Domin | Cyatheaceae | 3 |
| Cyclanthera hystrix | Arn. | Cucurbitaceae | 3 |
| Cyperus byssaceus | Pereira-Silva | Cyperaceae | 3 |
| Cyperus rigens | J.Presl & C.Presl | Cyperaceae | 3 |
| Davilla elliptica | A.St.-Hil. | Dilleniaceae | 3 |
| Dianthera pectoralis | (Jacq.) J.F.Gmel. | Acanthaceae | 3 |
| Dimerostemma aspilioides | (Griseb.) M.D.Moraes | Asteraceae | 3 |
| Diplazium urticifolium | Christ | Athyriaceae | 3 |
| Diplokeleba floribunda | N.E.Br. | Sapindaceae | 3 |
| Distimake macrocalyx | (Ruiz & Pav.) A.R.Simões & Staples | Convolvulaceae | 3 |
| Drosera grantsaui | Rivadavia | Droseraceae | 3 |
| Dyckia leptostachya | Baker | Bromeliaceae | 3 |
| Echinochloa polystachya | (Kunth) Hitchc. | Poaceae | 3 |
| Emmeorhiza umbellata | (Spreng.) K.Schum. | Rubiaceae | 3 |
| Erythroxylum cuneifolium | (Mart.) O.E.Schulz | Erythroxylaceae | 3 |
| Eugenia uruguayensis | Cambess. | Myrtaceae | 3 |
| Eustachys distichophylla | (Lag.) Nees | Poaceae | 3 |
| Galeandra styllomisantha | (Vell.) Hoehne | Orchidaceae | 3 |
| Gomesa cornigera | (Lindl.) M.W.Chase & N.H.Williams | Orchidaceae | 3 |
| Gomesa paranensoides | M.W.Chase & N.H.Williams | Orchidaceae | 3 |
| Gouania polygama | (Jacq.) Urb. | Rhamnaceae | 3 |
| Gymnocalycium paediophilum | F.Ritter ex Schütz | Cactaceae | 3 |
| Habenaria bractescens | Lindl. | Orchidaceae | 3 |
| Habenaria parviflora | Lindl. | Orchidaceae | 3 |
| Habenaria petalodes | Lindl. | Orchidaceae | 3 |
| Heterostachys ritteriana | (Moq.) Ung.-Sternb. | Chenopodiaceae | 3 |
| Hypochaeris microcephala | (Sch.Bip.) Cabrera | Asteraceae | 3 |
| Indigofera asperifolia | Bong. ex Benth. | Fabaceae | 3 |
| Indigofera parodiana | Burkart | Fabaceae | 3 |
| Ipomoea argentea | Meisn. | Convolvulaceae | 3 |
| Ipomoea descolei | O'Donell | Convolvulaceae | 3 |
| Kallstroemia tribuloides | (Mart.) Steud. | Zygophyllaceae | 3 |
| Leptolobium dasycarpum | Vogel | Fabaceae | 3 |
| Lippia suffruticosa | (Griseb.) Kuntze | Verbenaceae | 3 |
| Lonchocarpus pluvialis | Rusby | Fabaceae | 3 |
| Ludwigia nervosa | (Poir.) H.Hara | Onagraceae | 3 |
| Lupinus heptaphyllus | (Vell.) Hassl. | Fabaceae | 3 |
| Manettia paraguariensis | Chodat | Rubiaceae | 3 |
| Mendoncia velloziana | Mart. | Acanthaceae | 3 |
| Microtea debilis | Sw. | Microteaceae | 3 |
| Mikania hemisphaerica | Sch.Bip. ex Baker | Asteraceae | 3 |
| Mikania thapsoides | DC. | Asteraceae | 3 |
| Myracrodruon urundeuva | Allemão | Anacardiaceae | 3 |
| Neltuma elata | (Burkart) C.E.Hughes & G.P.Lewis | Fabaceae | 3 |
| Nymphaea jamesoniana | Planch. | Nymphaeaceae | 3 |
| Ophioglossum reticulatum | L. | Ophioglossaceae | 3 |
| Oxypetalum macrolepis | (Hook. & Arn.) Decne. | Apocynaceae | 3 |
| Paspalum malacophyllum | Trin. | Poaceae | 3 |
| Paspalum stellatum | Flüggé | Poaceae | 3 |
| Paullinia meliifolia | Juss. | Sapindaceae | 3 |
| Pavonia betonicifolia | C.Presl | Malvaceae | 3 |
| Pavonia xanthogloea | Ekman | Malvaceae | 3 |
| Pelexia bonariensis | (Lindl.) Schltr. | Orchidaceae | 3 |
| Peperomia barbarana | C.DC. | Piperaceae | 3 |
| Peperomia comarapana | C.DC. | Piperaceae | 3 |
| Peperomia tetragona | Ruiz & Pav. | Piperaceae | 3 |
| Phoradendron crassifolium | (Pohl ex DC.) Eichler | Santalaceae | 3 |
| Phoradendron mucronatum | (DC.) Krug & Urb. | Santalaceae | 3 |
| Phyllanthus acuminatus | Vahl | Phyllanthaceae | 3 |
| Phyllanthus orbiculatus | Rich. | Phyllanthaceae | 3 |
| Piper regnellii | (Miq.) C.DC. | Piperaceae | 3 |
| Plectrocarpa bonariensis | (Griseb.) Christenh. & Byng | Zygophyllaceae | 3 |
| Plectrocarpa sarmientoi | (Lorentz ex Griseb.) Christenh. & Byng | Zygophyllaceae | 3 |
| Portulaca eruca | Hauman | Portulacaceae | 3 |
| Pterocaulon alopecuroides | (Lam.) DC. | Asteraceae | 3 |
| Rhynchanthera cordata | DC. | Melastomataceae | 3 |
| Rhynchosia burkartii | Fortunato | Fabaceae | 3 |
| Ruehssia macrophylla | (Humb. & Bonpl. ex Schult.) H.Karst. | Apocynaceae | 3 |
| Ruellia geminiflora | Kunth | Acanthaceae | 3 |
| Sacoila argentina | (Griseb.) Garay | Orchidaceae | 3 |
| Sagittaria rhombifolia | Cham. | Alismataceae | 3 |
| Schinus weinmanniifolia | Engl. | Anacardiaceae | 3 |
| Schnella microstachya | Raddi | Fabaceae | 3 |
| Scleria latifolia | Sw. | Cyperaceae | 3 |
| Setaria tenax | (Rich.) Desv. | Poaceae | 3 |
| Sida argentina | K.Schum. | Malvaceae | 3 |
| Sideroxylon obtusifolium | (Roem. & Schult.) T.D.Penn. | Sapotaceae | 3 |
| Sinningia tubiflora | (Hook.) Fritsch | Gesneriaceae | 3 |
| Solanum robustum | H.L.Wendl. | Solanaceae | 3 |
| Solanum uncinellum | Lindl. | Solanaceae | 3 |
| Sorghastrum pellitum | (Hack.) Parodi | Poaceae | 3 |
| Spergularia ramosa | Cambess. | Caryophyllaceae | 3 |
| Stemodia lanceolata | Benth. | Plantaginaceae | 3 |
| Stevia entreriensis | Hieron. | Asteraceae | 3 |
| Stylosanthes hippocampoides | Mohlenbr. | Fabaceae | 3 |
| Turnera orientalis | (Urb.) Arbo | Passifloraceae | 3 |
| Vitex polygama | Cham. | Lamiaceae | 3 |
| Zanthoxylum caribaeum | Lam. | Rutaceae | 3 |
| Zephyranthes filifolia | Kraenzl. | Amaryllidaceae | 3 |
| Zygostigma australe | (Cham. & Schltdl.) Griseb. | Gentianaceae | 3 |
Abildgaardia ovataflatspike sedge
Abutilon grandifoliumhairy Indian mallow
Abutilon viscosumviscid mallow
Acalypha communis
Acalypha herzogiana
Acanthocalycium rhodotrichum
Acanthospermum australeParaguayan starbur
Acanthospermum hispidumhispid starbur
Acanthostachys strobilacea
Acanthosyris falcata
Acianthera pubescenshairy bonnet orchid
Acianthera sonderiana
Acicarpha tribuloidesmadam gorgon
Acmella decumbenscreeping spotflower
Acmella repens
Acrocomia totaigrugru palm
Acrostichum danaeifoliuminland leatherfern
Adenaria floribunda
Adiantopsis chlorophylla
Adiantopsis radiata
Adiantum latifoliumbroadleaf maidenhair
Adiantum lorentzii
Adiantum petiolatumstalked maidenhair
Adiantum poiretii
Adiantum pulverulentumglossy maidenhair
Adiantum raddianumdelta maidenhair
Aechmea bromeliifolia
Aechmea distichantha
Aechmea recurvata
Aegiphila verticillata
Aeschynomene americanashyleaf
Aeschynomene montevidensis
Agalinis communis
Agalinis genistifolia
Aiouea montanalaurel avispillo
Alibertia edulis
Allophylus edulis
Allophylus guaraniticus
Allophylus laevigatus
Aloysia citrodoraLemon Bee-brush
Aloysia gratissimaWhitebrush
Aloysia virgata
Alsophila setosa
Alstroemeria psittacinalily of the Incas
Alternanthera brasilianaBrazilian joyweed
Alternanthera flavescensyellow joyweed
Alternanthera paronychioidessmooth joyweed
Alternanthera philoxeroidesAlligatorweed
