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 |
|---|---|---|---|
| Ischnosiphon heleniae | L.Andersson | 3 | documented |
| Ischnosiphon petiolatus | (Rudge) L.Andersson | 3 | documented |
| Ischnosiphon obliquus | (Rudge) Körn. | 2 | below the evidence gate |
| Ischnosiphon puberulus | Loes. | 2 | below the evidence gate |
| Ischnosiphon annulatus | Loes. | 0 | below the evidence gate |
| Ischnosiphon arouma | (Aubl.) Körn. | 0 | below the evidence gate |
| Ischnosiphon bahiensis | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon cannoideus | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon caudatus | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon centricifolius | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon cerotus | Loes. | 0 | below the evidence gate |
| Ischnosiphon colombianus | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon crassispicus | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon elegans | Standl. | 0 | below the evidence gate |
| Ischnosiphon enigmaticus | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon flagellatus | Gleason | 0 | below the evidence gate |
| Ischnosiphon foliosus | Gleason | 0 | below the evidence gate |
| Ischnosiphon fusiformis | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon gracilis | Körn. | 0 | below the evidence gate |
| Ischnosiphon grandibracteatus | Loes. | 0 | below the evidence gate |
| Ischnosiphon hirsutus | Petersen | 0 | below the evidence gate |
| Ischnosiphon idrobonis | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon inflatus | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon killipii | J.F.Macbr. | 0 | below the evidence gate |
| Ischnosiphon lasiocoleus | K.Schum. ex Loes. | 0 | below the evidence gate |
| Ischnosiphon leucophaeus | (Poepp. & Endl.) Körn. | 0 | below the evidence gate |
| Ischnosiphon longiflorus | K.Schum. | 0 | below the evidence gate |
| Ischnosiphon macarenae | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon martianus | Eichler ex Petersen | 0 | below the evidence gate |
| Ischnosiphon ovatus | Körn. | 0 | below the evidence gate |
| Ischnosiphon parvifolius | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon paryrizinho | L.Andersson | 0 | below the evidence gate |
| Ischnosiphon polyphyllus | (Poepp. & Endl.) Körn. | 0 | below the evidence gate |
| Ischnosiphon rotundifolius | Körn. | 0 | below the evidence gate |
| Ischnosiphon surumuensis | Loes. | 0 | below the evidence gate |
| Ischnosiphon ursinus | L.Andersson | 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.