Thesium

Accepted species 334 Documented here 79 Family Santalaceae

Accepted species 334 in this genus

Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.

SpeciesAuthority Usable photographsPage
Thesium strictum P.J.Bergius 697 documented
Thesium euphorbioides P.J.Bergius 246 documented
Thesium aggregatum A.W.Hill 222 documented
Thesium fragile L.f. 193 documented
Thesium viridifolium Levyns 133 documented
Thesium ramosum Hayne 109 documented
Thesium virgatum Lam. 90 documented
Thesium alpinum L. 88 documented
Thesium spicatum L. 74 documented
Thesium celatum N.E.Br. 65 documented
Thesium scabrum L. 58 documented
Thesium divaricatum Jan ex Mert. & W.D.J.Koch 48 documented
Thesium flexuosum A.DC. 46 documented
Thesium linophyllon L. 43 documented
Thesium repens Ledeb. 36 documented
Thesium bavarum Schrank 35 documented
Thesium refractum C.A.Mey. 35 documented
Thesium capitatum L. 29 documented
Thesium foliosum A.DC. 28 documented
Thesium humifusum DC. 28 documented
Thesium euphrasioides A.DC. 25 documented
Thesium funale L. 25 documented
Thesium umbelliferum A.W.Hill 25 documented
Thesium triflorum L.f. 24 documented
Thesium ecklonianum Sond. 23 documented
Thesium pubescens A.DC. 21 documented
Thesium cupressoides A.W.Hill 20 documented
Thesium costatum A.W.Hill 19 documented
Thesium ebracteatum Hayne 19 documented
Thesium penicillatum A.W.Hill 19 documented
Thesium utile A.W.Hill 19 documented
Thesium nudicaule A.W.Hill 18 documented
Thesium procerum N.E.Br. 17 documented
Thesium spinosum L.f. 17 documented
Thesium polycephalum Schltr. 16 documented
Thesium humile Vahl 15 documented
Thesium frisea L. 14 documented
Thesium alatum Hilliard & B.L.Burtt 13 documented
Thesium commutatum Sond. 12 documented
Thesium pyrenaicum Pourr. 12 documented
Thesium carinatum A.DC. 11 documented
Thesium hispidulum Lam. 11 documented
Thesium hystrix A.W.Hill 11 documented
Thesium junceum Bernh. ex Krauss 11 documented
Thesium patulum A.W.Hill 11 documented
Thesium pinifolium A.DC. 11 documented
Thesium susannae A.W.Hill 11 documented
Thesium quinqueflorum Sond. 10 documented
Thesium ericifolium A.DC. 9 documented
Thesium glomeratum A.W.Hill 9 documented
Thesium sonderianum Schltr. 9 documented
Thesium squarrosum L.f. 9 documented
Thesium acuminatum A.W.Hill 8 documented
Thesium glomeruliflorum Sond. 8 documented
Thesium occidentale A.W.Hill 8 documented
Thesium patersonae A.W.Hill 8 documented
Thesium pungens A.W.Hill 8 documented
Thesium chinense Turcz. 7 documented
Thesium magalismontanum Sond. 7 documented
Thesium albomontanum Compton 6 documented
Thesium angulosum A.DC. 6 documented
Thesium capitellatum A.DC. 6 documented
Thesium imbricatum Thunb. 6 documented
Thesium urceolatum A.W.Hill 6 documented
Thesium paniculatum L. 5 documented
Thesium phyllostachyum Sond. 5 documented
Thesium pseudovirgatum Levyns 5 documented
Thesium fallax Schltr. 4 documented
Thesium gracilarioides A.W.Hill 4 documented
Thesium pallidum A.DC. 4 documented
Thesium subnudum Sond. 4 documented
Thesium bergeri Zucc. 3 documented
Thesium horridum Pilg. 3 documented
Thesium macrostachyum A.DC. 3 documented
Thesium oresigenum Compton 3 documented
Thesium rasum (A.W.Hill) N.E.Br. 3 documented
Thesium rostratum Mert. & W.D.J.Koch 3 documented
Thesium schumannianum Schltr. 3 documented
Thesium transvaalense Schltr. 3 documented
Thesium australe R.Br. 4 below the evidence gate
Thesium densiflorum A.DC. 2 below the evidence gate
Thesium emodi Hendrych 2 below the evidence gate
Thesium hillianum Compton 2 below the evidence gate
Thesium himalense Royle 2 below the evidence gate
Thesium karooicum Compton 2 below the evidence gate
Thesium natalense Sond. 2 below the evidence gate
Thesium gnidiaceum A.DC. 1 below the evidence gate
Thesium acutissimum A.DC. 0 below the evidence gate
Thesium aellenianum Lawalrée 0 below the evidence gate
Thesium affine Schltr. 0 below the evidence gate
Thesium afghanicum Hendrych 0 below the evidence gate
Thesium alatavicum Kar. & Kir. 0 below the evidence gate
Thesium amicorum Lawalrée 0 below the evidence gate
Thesium angolense Pilg. 0 below the evidence gate
Thesium annulatum A.W.Hill 0 below the evidence gate
Thesium annuum Lawalrée 0 below the evidence gate
Thesium aphyllum Mart. ex A.DC. 0 below the evidence gate
Thesium archeri Compton 0 below the evidence gate
Thesium aristatum Schltr. 0 below the evidence gate
Thesium asperifolium A.W.Hill 0 below the evidence gate
Thesium asterias A.W.Hill 0 below the evidence gate
Thesium atrum A.W.Hill 0 below the evidence gate
Thesium aureum Jaub. & Spach 0 below the evidence gate
Thesium auriculatum Vandas 0 below the evidence gate
Thesium bangweolense R.E.Fr. 0 below the evidence gate
Thesium basninianum Turcz. 0 below the evidence gate
Thesium bathyschistum Schltr. 0 below the evidence gate
Thesium bequaertii Robyns & Lawalrée 0 below the evidence gate
Thesium bertramii Azn. 0 below the evidence gate
Thesium billardierei Boiss. 0 below the evidence gate
Thesium boissierianum A.DC. 0 below the evidence gate
Thesium bomiense C.Y.Wu & D.D.Tao 0 below the evidence gate
Thesium brachyanthum A.W.Hill 0 below the evidence gate
Thesium brachygyne Schltr. 0 below the evidence gate
Thesium brachystylum A.W.Hill 0 below the evidence gate
Thesium brasiliense A.DC. 0 below the evidence gate
Thesium brevibarbatum Pilg. 0 below the evidence gate
Thesium breyeri N.E.Br. 0 below the evidence gate
Thesium bundiense Hilliard 0 below the evidence gate
Thesium caespitans (Ledeb.) Tzvelev 0 below the evidence gate
Thesium canariense (Stearn) J.C.Manning & F.Forest 0 below the evidence gate
Thesium capituliflorum Sond. 0 below the evidence gate
Thesium catalaunicum Pedrol & M.Laínz 0 below the evidence gate
Thesium cathaicum Hendrych 0 below the evidence gate
Thesium chimanimaniense Brenan 0 below the evidence gate
Thesium cilicicum Hausskn. ex Bornm. 0 below the evidence gate
Thesium cinereum A.W.Hill 0 below the evidence gate
Thesium compressum Boiss. & Heldr. 0 below the evidence gate
Thesium confine Sond. 0 below the evidence gate
Thesium confusum J.C.Manning & F.Forest 0 below the evidence gate
Thesium congestum R.A.Dyer 0 below the evidence gate
Thesium conostylum Schltr. 0 below the evidence gate
Thesium cordatum A.W.Hill 0 below the evidence gate
Thesium cornigerum A.W.Hill 0 below the evidence gate
Thesium corsalpinum Hendrych 0 below the evidence gate
Thesium crassipes Robyns & Lawalrée 0 below the evidence gate
Thesium cymosum A.W.Hill 0 below the evidence gate
Thesium cystoseriroides Baker 0 below the evidence gate
Thesium cytisoides A.W.Hill 0 below the evidence gate
Thesium davidsoniae Brenan 0 below the evidence gate
Thesium decaryanum Cavaco & Keraudren 0 below the evidence gate
Thesium decipiens Hilliard & B.L.Burtt 0 below the evidence gate
Thesium densum N.E.Br. 0 below the evidence gate
Thesium disciflorum A.W.Hill 0 below the evidence gate
Thesium disparile N.E.Br. 0 below the evidence gate
Thesium dissitiflorum Schltr. 0 below the evidence gate
Thesium dissitum N.E.Br. 0 below the evidence gate
Thesium diversifolium Sond. 0 below the evidence gate
Thesium dolichomeras Brenan 0 below the evidence gate
Thesium dolichomeres Brenan 0 below the evidence gate
Thesium dollineri Murb. ex Velen. 0 below the evidence gate
Thesium doloense Pilg. 0 below the evidence gate
Thesium durum Hilliard & B.L.Burtt 0 below the evidence gate
Thesium elatius Sond. 0 below the evidence gate
Thesium equisetoides Welw. ex Hiern 0 below the evidence gate
Thesium ericaefolium A.DC. 0 below the evidence gate
Thesium erythronicum Pamp. 0 below the evidence gate
Thesium exile N.E.Br. 0 below the evidence gate
Thesium fanshawei Hilliard 0 below the evidence gate
Thesium fastigiatum A.W.Hill 0 below the evidence gate
Thesium ferganense Bobrov 0 below the evidence gate
Thesium filipes A.W.Hill 0 below the evidence gate
Thesium fimbriatum A.W.Hill 0 below the evidence gate
Thesium fructicosum A.W.Hill 0 below the evidence gate
Thesium fruticulosum (A.W.Hill) J.C.Manning & F.Forest 0 below the evidence gate
Thesium fulvum A.W.Hill 0 below the evidence gate
Thesium fuscum A.W.Hill 0 below the evidence gate
Thesium galioides A.DC. 0 below the evidence gate
Thesium germainii Robyns & Lawalrée 0 below the evidence gate
Thesium glaucescens A.W.Hill 0 below the evidence gate
Thesium globosum A.DC. 0 below the evidence gate
Thesium goetzeanum Engl. 0 below the evidence gate
Thesium gontscharovii Bobrov 0 below the evidence gate
Thesium gracile A.W.Hill 0 below the evidence gate
Thesium gracilentum N.E.Br. 0 below the evidence gate
Thesium griseum Sond. 0 below the evidence gate
Thesium gypsophiloides A.W.Hill 0 below the evidence gate
Thesium hararensis A.G.Mill. 0 below the evidence gate
Thesium helichrysoides A.W.Hill 0 below the evidence gate
Thesium helodes Hilliard 0 below the evidence gate
Thesium hirsutum A.W.Hill 0 below the evidence gate
Thesium hispanicum Hendrych 0 below the evidence gate
Thesium hispidum Schltr. 0 below the evidence gate
Thesium hockii Robyns & Lawalrée 0 below the evidence gate
Thesium hollandii Compton 0 below the evidence gate
Thesium hookeri Hendrych 0 below the evidence gate
Thesium humbertii Cavaco & Keraudren 0 below the evidence gate
Thesium hystricoides A.W.Hill 0 below the evidence gate
Thesium impeditum A.W.Hill 0 below the evidence gate
Thesium impressum Steud. ex A.DC. 0 below the evidence gate
Thesium inhambanense Hilliard 0 below the evidence gate
Thesium inonoense Hilliard 0 below the evidence gate
Thesium inversum N.E.Br. 0 below the evidence gate
Thesium italicum A.DC. 0 below the evidence gate
Thesium jarmilae Hendrych 0 below the evidence gate
Thesium jeanae Brenan 0 below the evidence gate
Thesium jeaniae Brenan 0 below the evidence gate
Thesium juncifolium A.DC. 0 below the evidence gate
Thesium katangense Robyns & Lawalrée 0 below the evidence gate
Thesium kernerianum Simonk. 0 below the evidence gate
Thesium kilimandscharicum Engl. 0 below the evidence gate
Thesium kotschyanum Boiss. 0 below the evidence gate
Thesium krymense Romo, Didukh & Borat. 0 below the evidence gate
Thesium kyrnosum Hendrych 0 below the evidence gate
Thesium lacinulatum A.W.Hill 0 below the evidence gate
Thesium laetum Robyns & Lawalrée 0 below the evidence gate
Thesium laxiflorum Trautv. 0 below the evidence gate
Thesium leandrianum Cavaco & Keraudren 0 below the evidence gate
Thesium leptocaule Sond. 0 below the evidence gate
Thesium leptostachyum A.DC. 0 below the evidence gate
Thesium lesliei N.E.Br. 0 below the evidence gate
Thesium leucanthum Gilg 0 below the evidence gate
Thesium lewallei Lawalrée 0 below the evidence gate
Thesium libanoticum Ehrenb. ex A.DC. 0 below the evidence gate
Thesium libericum Hepper & Keay 0 below the evidence gate
Thesium linophyllum Rchb. 0 below the evidence gate
Thesium lisae-mariae Stauffer 0 below the evidence gate
Thesium lisowskii Lawalrée 0 below the evidence gate
Thesium litoreum Brenan 0 below the evidence gate
Thesium lobelioides A.DC. 0 below the evidence gate
Thesium longiflorum Hand.-Mazz. 0 below the evidence gate
Thesium longifolium Turcz. 0 below the evidence gate
Thesium lopollense Hiern 0 below the evidence gate
Thesium lycopodioides Gilg 0 below the evidence gate
Thesium lynesii Robyns & Lawalrée 0 below the evidence gate
Thesium macedonicum Hendrych 0 below the evidence gate
Thesium macranthum Fenzl 0 below the evidence gate
Thesium madagascariense A.DC. 0 below the evidence gate
Thesium magnifructum Hilliard 0 below the evidence gate
Thesium malaissei Lawalrée 0 below the evidence gate
Thesium manikense Robyns & Lawalrée 0 below the evidence gate
Thesium maritimum C.A.Mey. 0 below the evidence gate
Thesium marlothii Schltr. 0 below the evidence gate
Thesium masukense A.W.Hill 0 below the evidence gate
Thesium matteii Chiov. 0 below the evidence gate
Thesium mauritanicum Batt. 0 below the evidence gate
Thesium maximiliani Schltr. 0 below the evidence gate
Thesium megalocarpum A.W.Hill 0 below the evidence gate
Thesium microcephalum A.W.Hill 0 below the evidence gate
Thesium micromeria A.DC. 0 below the evidence gate
Thesium microphyllum Robyns & Lawalrée 0 below the evidence gate
Thesium micropogon A.DC. 0 below the evidence gate
Thesium minkwitzianum B.Fedtsch. 0 below the evidence gate
Thesium minus (A.W.Hill) J.C.Manning & F.Forest 0 below the evidence gate
Thesium mukense A.W.Hill 0 below the evidence gate
Thesium multicaule Ledeb. 0 below the evidence gate
Thesium multiramulosum Pilg. 0 below the evidence gate
Thesium myriocladum Baker ex A.W.Hill 0 below the evidence gate
Thesium namaquense Schltr. 0 below the evidence gate
Thesium nationae A.W.Hill 0 below the evidence gate
Thesium nautimontanum M.A.García, Nickrent & Mucina 0 below the evidence gate
Thesium nigricans Rendle 0 below the evidence gate
Thesium nigromontanum Sond. 0 below the evidence gate
Thesium nutans Robyns & Lawalrée 0 below the evidence gate
Thesium oreogetum Hendrych 0 below the evidence gate
Thesium orgadophilum P.C.Tam 0 below the evidence gate
Thesium ovatifolium N.Lombard & M.M.le Roux 0 below the evidence gate
Thesium panganense Polhill 0 below the evidence gate
Thesium parnassi A.DC. 0 below the evidence gate
Thesium paronychioides Sond. 0 below the evidence gate
Thesium pawlowskianum Lawalrée 0 below the evidence gate
Thesium perrieri Cavaco & Keraudren 0 below the evidence gate
Thesium pilosum A.W.Hill 0 below the evidence gate
Thesium pleuroloma A.W.Hill 0 below the evidence gate
Thesium polygaloides A.W.Hill 0 below the evidence gate
Thesium procumbens C.A.Mey. 0 below the evidence gate
Thesium prostratum A.W.Hill 0 below the evidence gate
Thesium pseudocystoseiroides Cavaco & Keraudren 0 below the evidence gate
Thesium psilotocladum Svent. 0 below the evidence gate
Thesium psilotoides Hance 0 below the evidence gate
Thesium pycnanthum Schltr. 0 below the evidence gate
Thesium pygmaeum Hilliard 0 below the evidence gate
Thesium racemosum Bernh. ex Krauss 0 below the evidence gate
Thesium radicans Hochst. 0 below the evidence gate
Thesium ramosoides Hendrych 0 below the evidence gate
Thesium rariflorum Sond. 0 below the evidence gate
Thesium rectangulum Welw. ex Hiern 0 below the evidence gate
Thesium reekmansii Lawalrée 0 below the evidence gate
Thesium remotebracteatum C.Y.Wu & D.D.Tao 0 below the evidence gate
Thesium repandum A.W.Hill 0 below the evidence gate
Thesium resedoides A.W.Hill 0 below the evidence gate
Thesium resinifolium N.E.Br. 0 below the evidence gate
Thesium retamoides (A.Santos) J.C.Manning & F.Forest 0 below the evidence gate
Thesium robynsii Lawalrée 0 below the evidence gate
Thesium rufescens A.W.Hill 0 below the evidence gate
Thesium rupestre Ledeb. 0 below the evidence gate
Thesium saxatile Turcz. 0 below the evidence gate
Thesium scabriflorum P.H.Davis 0 below the evidence gate
Thesium scandens E.Mey. 0 below the evidence gate
Thesium schliebenii Pilg. 0 below the evidence gate
Thesium schweinfurthii Engl. 0 below the evidence gate
Thesium scirpioides A.W.Hill 0 below the evidence gate
Thesium sedifolium (Kuntze) A.DC. ex Levyns 0 below the evidence gate
Thesium selagineum A.DC. 0 below the evidence gate
Thesium semotum N.E.Br. 0 below the evidence gate
Thesium sertulariastrum A.W.Hill 0 below the evidence gate
Thesium setulosum Robyns & Lawalrée 0 below the evidence gate
Thesium singulare Hilliard 0 below the evidence gate
Thesium sommieri Hendrych 0 below the evidence gate
Thesium spartioides A.W.Hill 0 below the evidence gate
Thesium spinulosum A.DC. 0 below the evidence gate
Thesium stelleroides Jaub. & Spach 0 below the evidence gate
Thesium stuhlmannii Engl. 0 below the evidence gate
Thesium subaphyllum Engl. 0 below the evidence gate
Thesium subsimile N.E.Br. 0 below the evidence gate
Thesium subsucculentum (Kämmer) J.C.Manning & F.Forest 0 below the evidence gate
Thesium symoensii Lawalrée 0 below the evidence gate
Thesium szowitsii A.DC. 0 below the evidence gate
Thesium tauricolum Boiss. & Hausskn. 0 below the evidence gate
Thesium tenuissimum Hook.f. 0 below the evidence gate
Thesium tepuiense Steyerm. 0 below the evidence gate
Thesium tetragonum A.W.Hill 0 below the evidence gate
Thesium thamnus Robyns & Lawalrée 0 below the evidence gate
Thesium thomsonii Hendrych 0 below the evidence gate
Thesium tongolicum Hendrych 0 below the evidence gate
Thesium translucens A.W.Hill 0 below the evidence gate
Thesium triste A.W.Hill 0 below the evidence gate
Thesium tuvense Krasnob. 0 below the evidence gate
Thesium unicaule Haines 0 below the evidence gate
Thesium unyikense Engl. 0 below the evidence gate
Thesium urundiense Robyns & Lawalrée 0 below the evidence gate
Thesium ussanguense Engl. 0 below the evidence gate
Thesium vahrmeijeri Brenan 0 below the evidence gate
Thesium vimineum Robyns & Lawalrée 0 below the evidence gate
Thesium virens E.Mey. ex A.DC. 0 below the evidence gate
Thesium viride A.W.Hill 0 below the evidence gate
Thesium vlachorum Aldén 0 below the evidence gate
Thesium welwitschii Hiern 0 below the evidence gate
Thesium white-hillense Compton 0 below the evidence gate
Thesium whyteanum Rendle 0 below the evidence gate
Thesium wightianum Wall. 0 below the evidence gate
Thesium wilczekianum Lawalrée 0 below the evidence gate
Thesium xerophyticum A.W.Hill 0 below the evidence gate
Thesium zeyheri A.DC. 0 below the evidence gate

Why some species have no pagethe gate

This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.

So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.

Sourcesevery claim on this page

  1. World Flora Online Plant List. Accepted names, authorities, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. Photograph counts, restricted to CC0 / CC BY / CC BY-SA. Retrieved 2026-06-27.