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 |
|---|---|---|---|
| Sagittaria latifolia | Willd. | 1,212 | documented |
| Sagittaria lancifolia | L. | 504 | documented |
| Sagittaria sagittifolia | L. | 370 | documented |
| Sagittaria montevidensis | Cham. & Schltdl. | 344 | documented |
| Sagittaria platyphylla | (Engelm.) J.G.Sm. | 260 | documented |
| Sagittaria cuneata | E.Sheld. | 137 | documented |
| Sagittaria graminea | Michx. | 96 | documented |
| Sagittaria rigida | Pursh | 95 | documented |
| Sagittaria trifolia | L. | 87 | documented |
| Sagittaria longiloba | Engelm. ex J.G.Sm. | 44 | documented |
| Sagittaria kurziana | Glück | 34 | documented |
| Sagittaria papillosa | Buchenau | 33 | documented |
| Sagittaria australis | (J.G.Sm.) Small | 28 | documented |
| Sagittaria engelmanniana | J.G.Sm. | 26 | documented |
| Sagittaria chapmanii | (J.G.Sm.) C.Mohr | 23 | documented |
| Sagittaria brevirostra | Mack. & Bush | 22 | documented |
| Sagittaria natans | Pall. | 22 | documented |
| Sagittaria cristata | Engelm. | 17 | documented |
| Sagittaria sanfordii | Greene | 13 | documented |
| Sagittaria fasciculata | E.O.Beal | 6 | documented |
| Sagittaria aginashi | Makino | 5 | documented |
| Sagittaria subulata | (L.) Buchenau | 5 | documented |
| Sagittaria filiformis | J.G.Sm. | 4 | documented |
| Sagittaria guayanensis | Kunth | 4 | documented |
| Sagittaria macrocarpa | J.G.Sm. | 4 | documented |
| Sagittaria pygmaea | Miq. | 4 | documented |
| Sagittaria isoetiformis | J.G.Sm. | 3 | documented |
| Sagittaria rhombifolia | Cham. | 3 | documented |
| Sagittaria teres | S.Watson | 3 | documented |
| Sagittaria secundifolia | Kral | 1 | below the evidence gate |
| Sagittaria × lunata | C.D.Preston & Uotila | 0 | below the evidence gate |
| Sagittaria ambigua | J.G.Sm. | 0 | below the evidence gate |
| Sagittaria demersa | J.G.Sm. | 0 | below the evidence gate |
| Sagittaria intermedia | Micheli | 0 | below the evidence gate |
| Sagittaria lichuanensis | J.K.Chen, S.C.Sun & H.Q.Wang | 0 | below the evidence gate |
| Sagittaria macrophylla | Zucc. | 0 | below the evidence gate |
| Sagittaria planitiana | G.Agostini | 0 | below the evidence gate |
| Sagittaria potamogetifolia | Merr. | 0 | below the evidence gate |
| Sagittaria sprucei | Micheli | 0 | below the evidence gate |
| Sagittaria tengtsungensis | H.Li | 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.