Xanthophytum

Accepted species 33 Documented here 0 Family Rubiaceae

Accepted species 33 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
Xanthophytum alopecurum Axelius 0 below the evidence gate
Xanthophytum antoanense Luu, H.C.Nguyen, Nguyen-Le & Q.D.Nguyen 0 below the evidence gate
Xanthophytum attopevense (Pierre ex Pit.) H.S.Lo 0 below the evidence gate
Xanthophytum balansae (Pit.) H.S.Lo 0 below the evidence gate
Xanthophytum borneense (Valeton) Axelius 0 below the evidence gate
Xanthophytum brookei Axelius 0 below the evidence gate
Xanthophytum bullatum Tange 0 below the evidence gate
Xanthophytum calycinum (A.Gray) Benth. & Hook.f. ex Drake 0 below the evidence gate
Xanthophytum capitatum Valeton 0 below the evidence gate
Xanthophytum capitellatum Ridl. 0 below the evidence gate
Xanthophytum cylindricum Axelius 0 below the evidence gate
Xanthophytum ferrugineum (DC.) Merr. 0 below the evidence gate
Xanthophytum foliaceum Axelius 0 below the evidence gate
Xanthophytum fruticulosum Reinw. ex Blume 0 below the evidence gate
Xanthophytum glabrum Axelius 0 below the evidence gate
Xanthophytum glomeratum Valeton ex Bakh.f. 0 below the evidence gate
Xanthophytum grandiflorum Axelius 0 below the evidence gate
Xanthophytum grandifolium Valeton ex Bakh.f. 0 below the evidence gate
Xanthophytum involucratum Merr. 0 below the evidence gate
Xanthophytum johannis-winkleri Merr. 0 below the evidence gate
Xanthophytum kinabaluense (Bremek.) Tange 0 below the evidence gate
Xanthophytum kwangtungense (Chun & F.C.How) H.S.Lo 0 below the evidence gate
Xanthophytum longipedunculatum Merr. 0 below the evidence gate
Xanthophytum magnisepalum Axelius 0 below the evidence gate
Xanthophytum minus Axelius 0 below the evidence gate
Xanthophytum nitens Axelius 0 below the evidence gate
Xanthophytum olivaceum Merr. 0 below the evidence gate
Xanthophytum papuanum Wernham 0 below the evidence gate
Xanthophytum polyanthum Pit. 0 below the evidence gate
Xanthophytum pubistylosum Axelius 0 below the evidence gate
Xanthophytum semiorbiculare (Bakh.f.) Axelius 0 below the evidence gate
Xanthophytum sessile Axelius 0 below the evidence gate
Xanthophytum setosum Axelius 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.