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 |
|---|---|---|---|
| Helenium amarum | (Raf.) H.Rock | 1,533 | documented |
| Helenium autumnale | L. | 855 | documented |
| Helenium flexuosum | Raf. | 351 | documented |
| Helenium puberulum | DC. | 342 | documented |
| Helenium elegans | DC. | 207 | documented |
| Helenium bigelovii | A.Gray | 144 | documented |
| Helenium pinnatifidum | (Schwein. ex Nutt.) Rydb. | 112 | documented |
| Helenium microcephalum | DC. | 77 | documented |
| Helenium vernale | Walter | 59 | documented |
| Helenium brevifolium | (Nutt.) Alph.Wood | 53 | documented |
| Helenium mexicanum | Kunth | 22 | documented |
| Helenium aromaticum | (Hook.) L.H.Bailey | 20 | documented |
| Helenium drummondii | H.Rock | 15 | documented |
| Helenium bolanderi | A.Gray | 11 | documented |
| Helenium thurberi | A.Gray | 11 | documented |
| Helenium atacamense | Cabrera | 7 | documented |
| Helenium campestre | Small | 5 | documented |
| Helenium arizonicum | S.F.Blake | 3 | documented |
| Helenium quadridentatum | Labill. | 1 | below the evidence gate |
| Helenium apterum | (S.F.Blake) Bierner | 0 | below the evidence gate |
| Helenium argentinum | Ariza | 0 | below the evidence gate |
| Helenium chihuahuense | Bierner | 0 | below the evidence gate |
| Helenium donianum | (Hook. & Arn.) Seckt | 0 | below the evidence gate |
| Helenium fimbriatum | (Michx.) A.Gray | 0 | below the evidence gate |
| Helenium glaucum | Stuntz | 0 | below the evidence gate |
| Helenium insulare | (Phil.) Cabrera | 0 | below the evidence gate |
| Helenium integrifolium | Sessé & Moc. | 0 | below the evidence gate |
| Helenium laciniatum | A.Gray | 0 | below the evidence gate |
| Helenium linifolium | Rydb. | 0 | below the evidence gate |
| Helenium longiaristatum | Cuatrec. | 0 | below the evidence gate |
| Helenium ovallense | Bierner | 0 | below the evidence gate |
| Helenium polyphyllum | Small | 0 | below the evidence gate |
| Helenium radiatum | (Less.) Seckt | 0 | below the evidence gate |
| Helenium scaposum | Britton | 0 | below the evidence gate |
| Helenium scorzoneraefolium | A.Gray | 0 | below the evidence gate |
| Helenium tinctorium | J.F.Macbr. | 0 | below the evidence gate |
| Helenium urmenetae | (Phil.) Cabrera | 0 | below the evidence gate |
| Helenium vallenariense | (Phil.) Bierner | 0 | below the evidence gate |
| Helenium virginicum | S.F.Blake | 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.