Hydnophytum

Accepted species 58 Documented here 1 Family Rubiaceae

Accepted species 58 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
Hydnophytum formicarum Jack 8 documented
Hydnophytum acuminicalyx Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum albertisii Becc. 0 below the evidence gate
Hydnophytum alboviride Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum angustifolium Merr. 0 below the evidence gate
Hydnophytum archboldianum Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum bracteatum Valeton 0 below the evidence gate
Hydnophytum buxifolium Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum caminiferum Wistuba, U.Zimm., Gronem. & Marwinski 0 below the evidence gate
Hydnophytum confertifolium Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum cordifolium Valeton 0 below the evidence gate
Hydnophytum dauloense Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum davisii Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum decipiens Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum dentrecastense Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum ellipticum Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum ferrugineum P.I.Forst. 0 below the evidence gate
Hydnophytum fusiforme Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum grandiflorum Becc. 0 below the evidence gate
Hydnophytum grandifolium Valeton 0 below the evidence gate
Hydnophytum hailans Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum hellwigii Warb. 0 below the evidence gate
Hydnophytum heterophyllum Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum kebarense Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum lanceolatum Miq. 0 below the evidence gate
Hydnophytum lauterbachii Valeton 0 below the evidence gate
Hydnophytum linearifolium Valeton 0 below the evidence gate
Hydnophytum longiflorum A.Gray 0 below the evidence gate
Hydnophytum lucidulum Valeton 0 below the evidence gate
Hydnophytum magnifolium Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum magnirubrum Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum mamberamoense Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum mayuense Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum microphyllum Becc. 0 below the evidence gate
Hydnophytum minirubrum Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum morotaiense Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum moseleyanum Becc. 0 below the evidence gate
Hydnophytum multituberosum Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum myrtifolium Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum orichalcum Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum ovatum Miq. 0 below the evidence gate
Hydnophytum pauper Valeton ex Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum petiolatum Becc. 0 below the evidence gate
Hydnophytum puffii Y.W.Low, Sugau & K.M.Wong 0 below the evidence gate
Hydnophytum radicans Becc. 0 below the evidence gate
Hydnophytum ramispinum Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum reevii Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum spathulatum Valeton 0 below the evidence gate
Hydnophytum stenophyllum Valeton 0 below the evidence gate
Hydnophytum subsessile Valeton 0 below the evidence gate
Hydnophytum terrestris Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum tetrapterum Becc. 0 below the evidence gate
Hydnophytum tortuosum Becc. 0 below the evidence gate
Hydnophytum trichomanes Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum valetonii Jebb & C.R.Huxley 0 below the evidence gate
Hydnophytum virgatum Valeton 0 below the evidence gate
Hydnophytum vitis-idaea Merr. & L.M.Perry 0 below the evidence gate
Hydnophytum zippelianum Becc. 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.