Dryas

Accepted species 15 Documented here 6 Family Rosaceae

Accepted species 15 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
Dryas octopetala L. 571 documented
Dryas drummondii Richardson ex Hook. 260 documented
Dryas integrifolia Vahl 251 documented
Dryas hookeriana Juz. 156 documented
Dryas ajanensis Juz. 17 documented
Dryas alaskensis Porsild 7 documented
Dryas oxyodonta Juz. 1 below the evidence gate
Dryas × suendermannii Kellerer ex Sünd. 0 below the evidence gate
Dryas chamissonis Spreng. ex Juz. 0 below the evidence gate
Dryas grandiformis Jurtzev 0 below the evidence gate
Dryas grandis Juz. 0 below the evidence gate
Dryas incisa Juz. 0 below the evidence gate
Dryas lewinii Rouleau 0 below the evidence gate
Dryas sumneviczii Serg. 0 below the evidence gate
Dryas viscosa Juz. 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.