Osmorhiza

Accepted species 12 Documented here 7 Family Apiaceae

Accepted species 12 in this genus

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.

SpeciesAuthority Usable photographsPage
Osmorhiza longistylis DC. 1,083 documented
Osmorhiza claytonii C.B.Clarke 516 documented
Osmorhiza berteroi DC. 426 documented
Osmorhiza occidentalis Torr. 87 documented
Osmorhiza brachypoda Torr. ex Durand 40 documented
Osmorhiza depauperata Phil. 26 documented
Osmorhiza aristata (Thunb.) Rydb. 20 documented
Osmorhiza purpurea (J.M.Coult. & Rose) Suksd. 1 below the evidence gate
Osmorhiza bipatriata Constance & R.H.Shan 0 below the evidence gate
Osmorhiza geohintonii B.L.Turner 0 below the evidence gate
Osmorhiza glabrata Phil. 0 below the evidence gate
Osmorhiza mexicana Griseb. 0 below the evidence gate

Why some species have no pagethe 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.

Sourcesevery claim on this page

  1. World Flora Online Plant List. Accepted names, authorities, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. Photograph counts, restricted to CC0 / CC BY / CC BY-SA. Retrieved 2026-06-27.