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 |
|---|---|---|---|
| Cosmos bipinnatus | Cav. | 710 | documented |
| Cosmos sulphureus | Cav. | 363 | documented |
| Cosmos parviflorus | (Jacq.) Pers. | 138 | documented |
| Cosmos diversifolius | Otto | 85 | documented |
| Cosmos caudatus | Kunth | 40 | documented |
| Cosmos crithmifolius | Kunth | 37 | documented |
| Cosmos ochroleucoflorus | Melchert | 20 | documented |
| Cosmos scabiosoides | Kunth | 16 | documented |
| Cosmos palmeri | B.L.Rob. | 9 | documented |
| Cosmos concolor | Sherff | 6 | documented |
| Cosmos linearifolius | (Sch.Bip.) Hemsl. | 5 | documented |
| Cosmos atrosanguineus | (Hook.) Voss | 4 | documented |
| Cosmos peucedanifolius | Wedd. | 3 | documented |
| Cosmos deficiens | (Sherff) Melchert | 1 | below the evidence gate |
| Cosmos jaliscensis | Sherff | 1 | below the evidence gate |
| Cosmos juxtlahuacensis | Panero & Villaseñor | 1 | below the evidence gate |
| Cosmos longipetiolatus | Melchert | 1 | below the evidence gate |
| Cosmos nelsonii | B.L.Rob. & Fernald | 1 | below the evidence gate |
| Cosmos purpureus | Benth. & Hook.f. ex Hemsl. | 1 | below the evidence gate |
| Cosmos sherffii | Melchert | 1 | below the evidence gate |
| Cosmos carvifolius | Benth. | 0 | below the evidence gate |
| Cosmos herzogii | Sherff | 0 | below the evidence gate |
| Cosmos intercedens | Sherff | 0 | below the evidence gate |
| Cosmos landii | Sherff | 0 | below the evidence gate |
| Cosmos langlassei | (Sherff) Sherff | 0 | below the evidence gate |
| Cosmos mattfeldii | Sherff | 0 | below the evidence gate |
| Cosmos mcvaughii | Sherff | 0 | below the evidence gate |
| Cosmos microcephalus | Sherff | 0 | below the evidence gate |
| Cosmos modestus | Sherff | 0 | below the evidence gate |
| Cosmos montanus | Sherff | 0 | below the evidence gate |
| Cosmos nitidus | Paray | 0 | below the evidence gate |
| Cosmos pacificus | Melchert | 0 | below the evidence gate |
| Cosmos pringlei | B.L.Rob. & Fernald | 0 | below the evidence gate |
| Cosmos purpurens | Sherff | 0 | below the evidence gate |
| Cosmos schaffneri | Sherff | 0 | below the evidence gate |
| Cosmos scherfii | Melchert | 0 | below the evidence gate |
| Cosmos sessilis | Sherff | 0 | below the evidence gate |
| Cosmos steenisiae | Veldkamp | 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.