Giliastrum

Accepted species 10 Documented here 6 Family Polemoniaceae

Accepted species 10 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
Giliastrum incisum (Benth.) J.M.Porter 190 documented
Giliastrum acerosum (A.Gray) Rydb. 101 documented
Giliastrum rigidulum Rydb. 77 documented
Giliastrum stewartii (I.M.Johnst.) J.M.Porter 13 documented
Giliastrum foetidum (Gillies ex Benth.) J.M.Porter 5 documented
Giliastrum ludens (Shinners) J.M.Porter 4 documented
Giliastrum castellanosii J.M.Porter 0 below the evidence gate
Giliastrum gypsophilum (B.L.Turner) J.M.Porter 0 below the evidence gate
Giliastrum insigne (Brand) J.M.Porter 0 below the evidence gate
Giliastrum purpusii (Brandegee) J.M.Porter 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.