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 |
|---|---|---|---|
| Blechnum punctulatum | Sw. | 159 | documented |
| Blechnum appendiculatum | Willd. | 85 | documented |
| Blechnum occidentale | L. | 42 | documented |
| Blechnum australe | L. | 39 | documented |
| Blechnum hastatum | Kaulf. | 34 | documented |
| Blechnum asplenioides | Sw. | 12 | documented |
| Blechnum polypodioides | Raddi | 5 | documented |
| Blechnum × caudatum | Cav. | 0 | below the evidence gate |
| Blechnum × confluens | Schltdl. & Cham. | 0 | below the evidence gate |
| Blechnum × leopoldense | (Dutra) V.A.O.Dittrich & Salino | 0 | below the evidence gate |
| Blechnum × pampasicum | de la Sota & M.L.Durán | 0 | below the evidence gate |
| Blechnum areolatum | V.A.O.Dittrich & Salino | 0 | below the evidence gate |
| Blechnum auriculatum | Cav. | 0 | below the evidence gate |
| Blechnum austrobrasilianum | de la Sota | 0 | below the evidence gate |
| Blechnum gracile | Kaulf. | 0 | below the evidence gate |
| Blechnum gracilipes | (Rosenst.) M.Kessler & A.R.Sm. | 0 | below the evidence gate |
| Blechnum guayanense | A.Rojas | 0 | below the evidence gate |
| Blechnum heringeri | Brade | 0 | below the evidence gate |
| Blechnum laevigatum | Cav. | 0 | below the evidence gate |
| Blechnum lanceola | Sw. | 0 | below the evidence gate |
| Blechnum longipilosum | V.A.O.Dittrich & Salino | 0 | below the evidence gate |
| Blechnum ludificans | Herter | 0 | below the evidence gate |
| Blechnum malacothrix | Maxon & C.V.Morton | 0 | below the evidence gate |
| Blechnum meridense | Klotzsch | 0 | below the evidence gate |
| Blechnum rivulorum | V.A.O.Dittrich & Salino | 0 | below the evidence gate |
| Blechnum rosulatum | V.A.O.Dittrich, Gasper & B.Schindl. | 0 | below the evidence gate |
| Blechnum tomentosum | M.Kessler & A.R.Sm. | 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.