Loasa

Accepted species 26 Documented here 18 Family Loasaceae

Accepted species 26 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
Loasa triloba Juss. 54 documented
Loasa placei Lindl. 49 documented
Loasa tricolor Ker Gawl. 39 documented
Loasa acerifolia Dombey ex A.Juss. 34 documented
Loasa elongata Hook. & Arn. 31 documented
Loasa acanthifolia Lam. 23 documented
Loasa prostrata Gillies ex Arn. 18 documented
Loasa sigmoidea Urb. & Gilg 12 documented
Loasa nitida Desr. 11 documented
Loasa sclareifolia Juss. 11 documented
Loasa insons Poepp. 10 documented
Loasa mollensis Muñoz-Schick & Trenq. 9 documented
Loasa floribunda Hook. & Arn. 5 documented
Loasa mendocina (Urb. & Gilg) R.H.Acuña, Weigend & D.H.Cohen 5 documented
Loasa multifida Gay 4 documented
Loasa pallida Gillies ex Arn. 4 documented
Loasa rotundifolia Phil. 4 documented
Loasa heterophylla Hook. & Arn. 3 documented
Loasa caespitosa Phil. 1 below the evidence gate
Loasa arnottiana Gay 0 below the evidence gate
Loasa hastata Killip 0 below the evidence gate
Loasa humilis F.Phil. 0 below the evidence gate
Loasa illapelina Phil. 0 below the evidence gate
Loasa martinii Phil. 0 below the evidence gate
Loasa paradoxa Urb. & Gilg 0 below the evidence gate
Loasa unguiculata Urb. & Gilg 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.