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.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Polygonum aviculare | L. | 2,275 | documented |
| Polygonum perfoliatum | L. | 1,045 | documented |
| Polygonum paronychia | Cham. & Schltdl. | 246 | documented |
| Polygonum arenastrum | Boreau | 149 | documented |
| Polygonum maritimum | L. | 111 | documented |
| Polygonum plebeium | R.Br. | 92 | documented |
| Polygonum senticosum | (Meisn.) Franch. & Sav. | 70 | documented |
| Polygonum biconvexum | Hayata | 66 | documented |
| Polygonum equisetiforme | Sm. | 60 | documented |
| Polygonum thunbergii | Siebold & Zucc. | 59 | documented |
| Polygonum posumbu | Buch.-Ham. ex D.Don | 53 | documented |
| Polygonum tenue | Michx. | 53 | documented |
| Polygonum shastense | Brewer | 38 | documented |
| Polygonum runcinatum | Buch.-Ham. | 30 | documented |
| Polygonum minimum | S.Watson | 24 | documented |
| Polygonum achoreum | S.F.Blake | 22 | documented |
| Polygonum undulatum | (L.) P.J.Bergius | 16 | documented |
| Polygonum spergulariiforme | Meisn. ex Small | 14 | documented |
| Polygonum pubescens | Blume | 13 | documented |
| Polygonum glaucum | Nutt. | 11 | documented |
| Polygonum praetermissum | Hook.f. | 11 | documented |
| Polygonum angustifolium | Pall. | 9 | documented |
| Polygonum careyi | Olney | 6 | documented |
| Polygonum ramosissimum | Michx. | 6 | documented |
| Polygonum rurivagum | Jord. ex Boreau | 6 | documented |
| Polygonum polygaloides | Meisn. | 5 | documented |
| Polygonum bidwelliae | S.Watson | 4 | documented |
| Polygonum bolanderi | W.H.Brewer | 3 | documented |
| Polygonum jucundum | Meisn. | 3 | documented |
| Polygonum paronychioides | C.A.Mey. | 3 | documented |
| Polygonum douglasii | Greene | 34 | below the evidence gate |
| Polygonum bellardii | All. | 12 | below the evidence gate |
| Polygonum kawagoeanum | Makino | 2 | below the evidence gate |
| Polygonum oxyspermum | C.A.Mey. & Bunge | 2 | below the evidence gate |
| Polygonum humifusum | C.Merck ex K.Koch | 1 | below the evidence gate |
| Polygonum japonicum | Meisn. | 1 | below the evidence gate |
| Polygonum × subsericeum | Popov | 0 | below the evidence gate |
| Polygonum abbreviatum | Kom. | 0 | below the evidence gate |
| Polygonum acerosum | Ledeb. ex Meisn. | 0 | below the evidence gate |
| Polygonum acetosum | M.Bieb. | 0 | below the evidence gate |
| Polygonum affine | D.Don | 0 | below the evidence gate |
| Polygonum afghanicum | Meisn. | 0 | below the evidence gate |
| Polygonum afromontanum | Greenway | 0 | below the evidence gate |
| Polygonum ajanense | (Nakai) Grig. | 0 | below the evidence gate |
| Polygonum albanicum | Javorka | 0 | below the evidence gate |
| Polygonum alopecuroides | Turcz. ex Meissn. | 0 | below the evidence gate |
| Polygonum americanum | (Fisch. & C.A.Mey.) T.M.Schust. & Reveal | 0 | below the evidence gate |
| Polygonum amgense | Michaleva & V.I.Perfiljeva | 0 | below the evidence gate |
| Polygonum amurense | (Korsh.) Vorosch. | 0 | below the evidence gate |
| Polygonum anatolicum | M.Keskin & Eker | 0 | below the evidence gate |
| Polygonum arenarium | Waldst. & Kit. | 0 | below the evidence gate |
| Polygonum argyrocoleon | Steud. ex Kunze | 0 | below the evidence gate |
| Polygonum assamicum | Meisn. | 0 | below the evidence gate |
| Polygonum baicalense | Sipliv. | 0 | below the evidence gate |
| Polygonum bargusinense | Peschkova | 0 | below the evidence gate |
| Polygonum basiramium | (Small) T.M.Schust. & Reveal | 0 | below the evidence gate |
| Polygonum biaristatum | Aitch. & Hemsl. | 0 | below the evidence gate |
| Polygonum boreale | Small | 0 | below the evidence gate |
| Polygonum bornmuelleri | Litv. | 0 | below the evidence gate |
| Polygonum bowenkampii | Phil. | 0 | below the evidence gate |
| Polygonum brasiliense | K.Koch | 0 | below the evidence gate |
| Polygonum brittingeri | Beck | 0 | below the evidence gate |
| Polygonum caducifolium | Vorosch. | 0 | below the evidence gate |
| Polygonum californicum | Meisn. | 0 | below the evidence gate |
| Polygonum carneum | K.Koch | 0 | below the evidence gate |
| Polygonum cascadense | W.H.Baker | 0 | below the evidence gate |
| Polygonum cashmiriense | H.Gross | 0 | below the evidence gate |
| Polygonum cathayanum | A.J.Li | 0 | below the evidence gate |
| Polygonum chiloensis | Rech.f. | 0 | below the evidence gate |
| Polygonum chrtekii | (Soják) Czerep. | 0 | below the evidence gate |
| Polygonum cognatum | Meisn. | 0 | below the evidence gate |
| Polygonum coriaceum | Sam. | 0 | below the evidence gate |
| Polygonum coriarium | Grig. | 0 | below the evidence gate |
| Polygonum corrigioloides | Jaub. & Spach | 0 | below the evidence gate |
| Polygonum criopolitanum | Hance | 0 | below the evidence gate |
| Polygonum cyanandrum | Diels | 0 | below the evidence gate |
| Polygonum darrisii | H.Lév. | 0 | below the evidence gate |
| Polygonum delicatulum | Meisn. | 0 | below the evidence gate |
| Polygonum densiflorum | Blume | 0 | below the evidence gate |
| Polygonum diospyrifolium | Cham. & Schltdl. | 0 | below the evidence gate |
| Polygonum dissitiflorum | Hemsl. | 0 | below the evidence gate |
| Polygonum divaricatum | L. | 0 | below the evidence gate |
| Polygonum dshawachischwilii | Kharkev. | 0 | below the evidence gate |
| Polygonum dubium | Stein ex A.Braun | 0 | below the evidence gate |
| Polygonum effusum | Meisn. | 0 | below the evidence gate |
| Polygonum elazigense | Behçet | 0 | below the evidence gate |
| Polygonum ellipticum | Willd. ex Spreng. | 0 | below the evidence gate |
| Polygonum emodi | Meisn. | 0 | below the evidence gate |
| Polygonum ensigerum | Juz. | 0 | below the evidence gate |
| Polygonum erectum | L. | 0 | below the evidence gate |
| Polygonum fallax | Small | 0 | below the evidence gate |
| Polygonum fertile | (Maxim.) A.J.Li | 0 | below the evidence gate |
| Polygonum filicaule | Wall. ex Meisn. | 0 | below the evidence gate |
| Polygonum floribundum | Schlecht. ex Spreng. | 0 | below the evidence gate |
| Polygonum forrestii | Diels | 0 | below the evidence gate |
| Polygonum fowleri | B.L.Rob. | 0 | below the evidence gate |
| Polygonum franchetii | Vorosch. | 0 | below the evidence gate |
| Polygonum franktonii | S.J.Wolf & McNeill | 0 | below the evidence gate |
| Polygonum galapagense | Caruel | 0 | below the evidence gate |
| Polygonum glaciale | (Meisn.) Hook.f. | 0 | below the evidence gate |
| Polygonum griffithii | Hook.f. | 0 | below the evidence gate |
| Polygonum gussonei | Tod. ex Lojac. | 0 | below the evidence gate |
| Polygonum hastatosagittatum | Makino | 0 | below the evidence gate |
| Polygonum heterosepalum | M.Peck & Ownbey | 0 | below the evidence gate |
| Polygonum hickmanii | H.R.Hinds & Rand.Morgan | 0 | below the evidence gate |
| Polygonum hissaricum | Popov | 0 | below the evidence gate |
| Polygonum honanense | H.W.Kung | 0 | below the evidence gate |
| Polygonum hookeri | Meisn. | 0 | below the evidence gate |
| Polygonum huananense | A.J.Li | 0 | below the evidence gate |
| Polygonum huichunense | F.Z.Li, Y.T.Hou & C.Y.Qu | 0 | below the evidence gate |
| Polygonum humile | Meisn. | 0 | below the evidence gate |
| Polygonum icaricum | Rech.f. | 0 | below the evidence gate |
| Polygonum idaeum | Hayek | 0 | below the evidence gate |
| Polygonum imeretinum | Kom. | 0 | below the evidence gate |
| Polygonum inflexum | Kom. | 0 | below the evidence gate |
| Polygonum intramongolicum | Borodina | 0 | below the evidence gate |
| Polygonum istanbulicum | M.Keskin | 0 | below the evidence gate |
| Polygonum junceum | Ledeb. | 0 | below the evidence gate |
| Polygonum jurii | A.K.Skvortsov | 0 | below the evidence gate |
| Polygonum krascheninnikovii | (N.A.Ivanova) Czerep. | 0 | below the evidence gate |
| Polygonum lacerum | Kunth | 0 | below the evidence gate |
| Polygonum lencoranicum | Kom. | 0 | below the evidence gate |
| Polygonum lichiangense | W.W.Sm. | 0 | below the evidence gate |
| Polygonum limicola | Sam. | 0 | below the evidence gate |
| Polygonum limosum | (Kom.) Kom. | 0 | below the evidence gate |
| Polygonum littorale | (Greene) Fedde | 0 | below the evidence gate |
| Polygonum lonchophyllum | (Greene) Fedde | 0 | below the evidence gate |
| Polygonum longiocreatum | Bartlett | 0 | below the evidence gate |
| Polygonum longipes | Halácsy & Charrel | 0 | below the evidence gate |
| Polygonum maackianum | Regel | 0 | below the evidence gate |
| Polygonum macrophyllum | D.Don | 0 | below the evidence gate |
| Polygonum majus | (Meisn.) Piper | 0 | below the evidence gate |
| Polygonum manshuriense | Petrov ex Komarov | 0 | below the evidence gate |
| Polygonum marinense | T.R.Mert. & P.H.Raven | 0 | below the evidence gate |
| Polygonum mexicanum | Small | 0 | below the evidence gate |
| Polygonum microcephalum | D.Don | 0 | below the evidence gate |
| Polygonum middenorfii | Kongar | 0 | below the evidence gate |
| Polygonum milletii | H.Lév. | 0 | below the evidence gate |
| Polygonum molle | D.Don | 0 | below the evidence gate |
| Polygonum molliiforme | Boiss. | 0 | below the evidence gate |
| Polygonum muricatum | Meisn. | 0 | below the evidence gate |
| Polygonum myrtillifolium | Kom. | 0 | below the evidence gate |
| Polygonum norvegicum | (Sam.) Sam. ex Lid | 0 | below the evidence gate |
| Polygonum nummularifolium | Meisn. | 0 | below the evidence gate |
| Polygonum nuttallii | Small | 0 | below the evidence gate |
| Polygonum ochotense | Petrov | 0 | below the evidence gate |
| Polygonum ochreatum | L. | 0 | below the evidence gate |
| Polygonum olivascens | Rech.f. & Schiman-Czeika | 0 | below the evidence gate |
| Polygonum opelousanum | Riddell ex Small | 0 | below the evidence gate |
| Polygonum pacificum | Petrov ex Kom. | 0 | below the evidence gate |
| Polygonum paleaceum | Wall. | 0 | below the evidence gate |
| Polygonum palmatum | Dunn | 0 | below the evidence gate |
| Polygonum paniculatum | L. | 0 | below the evidence gate |
| Polygonum panjutinii | Kharkev. | 0 | below the evidence gate |
| Polygonum papillosum | Hartvig | 0 | below the evidence gate |
| Polygonum paraguayense | Wedd. | 0 | below the evidence gate |
| Polygonum paralimicola | A.J.Li | 0 | below the evidence gate |
| Polygonum parksii | (Cory) T.M.Schust. & Reveal | 0 | below the evidence gate |
| Polygonum parryi | Greene | 0 | below the evidence gate |
| Polygonum patulum | M.Bieb. | 0 | below the evidence gate |
| Polygonum peruvianum | Meisn. | 0 | below the evidence gate |
| Polygonum pilushanense | Y.C.Liu & C.H.Ou | 0 | below the evidence gate |
| Polygonum pinetorum | Hemsl. | 0 | below the evidence gate |
| Polygonum platyphyllum | S.X.Li & Y.L.Chang | 0 | below the evidence gate |
| Polygonum polycnemoides | Jaub. & Spach | 0 | below the evidence gate |
| Polygonum popovii | Borodina | 0 | below the evidence gate |
| Polygonum pringlei | Small | 0 | below the evidence gate |
| Polygonum purpureonervosum | A.J.Li | 0 | below the evidence gate |
| Polygonum recumbens | Royle ex Bab. | 0 | below the evidence gate |
| Polygonum relictum | Kom. | 0 | below the evidence gate |
| Polygonum rigidum | Skvortsov | 0 | below the evidence gate |
| Polygonum riparium | Georgi | 0 | below the evidence gate |
| Polygonum romanum | Jacq. | 0 | below the evidence gate |
| Polygonum rottboellioides | Jaub. & Spach | 0 | below the evidence gate |
| Polygonum roylei | Bab. | 0 | below the evidence gate |
| Polygonum rubricaule | Cham. | 0 | below the evidence gate |
| Polygonum salsugineum | M.Bieb. | 0 | below the evidence gate |
| Polygonum sanguinaria | J.Rémy | 0 | below the evidence gate |
| Polygonum sarobiense | Rech.f. | 0 | below the evidence gate |
| Polygonum schischkinii | Ivanova ex Borodina | 0 | below the evidence gate |
| Polygonum scoparium | Req. ex Loisel. | 0 | below the evidence gate |
| Polygonum sericeum | Pall. | 0 | below the evidence gate |
| Polygonum serpyllaceum | Jaub. & Spach | 0 | below the evidence gate |
| Polygonum shiheziense | F.Z.Li, Y.T.Hou & F.J.Lu | 0 | below the evidence gate |
| Polygonum sibiricum | Laxm. | 0 | below the evidence gate |
| Polygonum sinomontanum | Sam. | 0 | below the evidence gate |
| Polygonum songaricum | Schrenk | 0 | below the evidence gate |
| Polygonum sparsipilosum | A.J.Li | 0 | below the evidence gate |
| Polygonum stelligerum | Cham. | 0 | below the evidence gate |
| Polygonum striatulum | B.L.Rob. | 0 | below the evidence gate |
| Polygonum strindbergii | J.Schust. | 0 | below the evidence gate |
| Polygonum stypticum | Cham. & Schltdl. | 0 | below the evidence gate |
| Polygonum subauriculatum | Petrov ex Kom. | 0 | below the evidence gate |
| Polygonum subsagittatum | (De Wild.) C.W.Park | 0 | below the evidence gate |
| Polygonum subscaposum | Diels | 0 | below the evidence gate |
| Polygonum suffultoides | A.J.Li | 0 | below the evidence gate |
| Polygonum suffultum | Maxim. | 0 | below the evidence gate |
| Polygonum taquetii | H.Lév. | 0 | below the evidence gate |
| Polygonum tenoreanum | E.Nardi & Raffaelli | 0 | below the evidence gate |
| Polygonum thymifolium | Jaub. & Spach | 0 | below the evidence gate |
| Polygonum tibeticum | Hemsl. | 0 | below the evidence gate |
| Polygonum tortuosum | D.Don | 0 | below the evidence gate |
| Polygonum trigonocarpum | (Makino) Kudô & Masam. | 0 | below the evidence gate |
| Polygonum tripterocarpum | A.Gray | 0 | below the evidence gate |
| Polygonum tumidum | Delile | 0 | below the evidence gate |
| Polygonum turgidum | Thuill. | 0 | below the evidence gate |
| Polygonum umbrosum | Sam. | 0 | below the evidence gate |
| Polygonum urumqiense | F.Z.Li, Y.T.Hou & F.J.Lu | 0 | below the evidence gate |
| Polygonum utahensis | Brenckle & Cottam | 0 | below the evidence gate |
| Polygonum vacciniifolium | Wall. ex Meisn. | 0 | below the evidence gate |
| Polygonum virginianum | L. | 0 | below the evidence gate |
| Polygonum viscoferum | Makino | 0 | below the evidence gate |
| Polygonum viscosum | Buch.-Ham. ex D.Don | 0 | below the evidence gate |
| Polygonum vladimiri | Czerep. | 0 | below the evidence gate |
| Polygonum vvedenskyi | Sumnev. | 0 | below the evidence gate |
| Polygonum wallichii | Meisn. | 0 | below the evidence gate |
| Polygonum weyrichii | F.Schmidt | 0 | below the evidence gate |
| Polygonum zaravschanicum | Zakirov | 0 | below the evidence 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.