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 |
|---|---|---|---|
| Nyssa sylvatica | Marshall | 1,201 | documented |
| Nyssa ogeche | W.Bartram ex Marshall | 181 | documented |
| Nyssa biflora | Walter | 129 | documented |
| Nyssa aquatica | L. | 56 | documented |
| Nyssa bidoupensis | Tagane & Yahara | 0 | below the evidence gate |
| Nyssa bifida | Craib | 0 | below the evidence gate |
| Nyssa hongiaoensis | Tagane & Komada | 0 | below the evidence gate |
| Nyssa javanica | (Blume) Wangerin | 0 | below the evidence gate |
| Nyssa sinensis | Oliv. | 0 | below the evidence gate |
| Nyssa talamancana | Hammel & N.Zamora | 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.