Exacum

Accepted species 75 Documented here 4 Family Gentianaceae

Accepted species 75 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
Exacum tetragonum Roxb. 47 documented
Exacum lawii C.B.Clarke 12 documented
Exacum pumilum Griseb. 11 documented
Exacum affine Balf.f. ex Regel 10 documented
Exacum lokohense Humbert 1 below the evidence gate
Exacum alberti-grimaldii Wohlh. & Callm. 0 below the evidence gate
Exacum amplexicaule Klack. 0 below the evidence gate
Exacum anamallayanum Bedd. 0 below the evidence gate
Exacum anisopterum Klack. 0 below the evidence gate
Exacum appendiculatum Klack. 0 below the evidence gate
Exacum arabicum Thulin 0 below the evidence gate
Exacum atropurpureum Bedd. 0 below the evidence gate
Exacum axillare Thwaites 0 below the evidence gate
Exacum bulbilliferum Baker 0 below the evidence gate
Exacum caeruleum Balf.f. 0 below the evidence gate
Exacum conglomeratum Klack. 0 below the evidence gate
Exacum courtallense Arn. 0 below the evidence gate
Exacum darae Hul 0 below the evidence gate
Exacum decapterum Klack. 0 below the evidence gate
Exacum dipterum Klack. 0 below the evidence gate
Exacum divaricatum (Baker) Schinz 0 below the evidence gate
Exacum dolichantherum Klack. 0 below the evidence gate
Exacum emirnense (Baker) Schinz 0 below the evidence gate
Exacum exiguum Klack. 0 below the evidence gate
Exacum fruticosum Humbert 0 below the evidence gate
Exacum giganteum Klack. 0 below the evidence gate
Exacum gracile Klack. 0 below the evidence gate
Exacum hamiltonii G.Don 0 below the evidence gate
Exacum hoffmannii Vatke ex Schinz 0 below the evidence gate
Exacum humbertii Klack. 0 below the evidence gate
Exacum idukkianum Geethakum., Pandur., Ravich. & Deepu 0 below the evidence gate
Exacum intermedium Klack. 0 below the evidence gate
Exacum keralense Geethakum., K.M.P.Kumar, Pandur. & Deepu 0 below the evidence gate
Exacum klackenbergii Gopalan 0 below the evidence gate
Exacum laxiflorum (Gamble) Geethakum., Deepu, Kissling & Pandur. 0 below the evidence gate
Exacum linearifolium (Humbert) Klack. 0 below the evidence gate
Exacum loheri (H.Hara) Klack. 0 below the evidence gate
Exacum macranthum Arn. ex Griseb. 0 below the evidence gate
Exacum marojejyense Humbert 0 below the evidence gate
Exacum microcarpum Klack. 0 below the evidence gate
Exacum millotii Humbert 0 below the evidence gate
Exacum nanum Klack. 0 below the evidence gate
Exacum naviculare Klack. 0 below the evidence gate
Exacum nossibeense Klack. 0 below the evidence gate
Exacum nummularifolium Humbert 0 below the evidence gate
Exacum oldenlandioides (S.Moore) Klack. 0 below the evidence gate
Exacum pallidum (Trimen) Klack. 0 below the evidence gate
Exacum paucisquamum (C.B.Clarke) Klack. 0 below the evidence gate
Exacum pedunculatum L. 0 below the evidence gate
Exacum penninerve Klack. 0 below the evidence gate
Exacum petiolare Griseb. 0 below the evidence gate
Exacum pteranthum Wall. ex G.Don 0 below the evidence gate
Exacum quinquenervium Griseb. 0 below the evidence gate
Exacum radicans Humbert 0 below the evidence gate
Exacum rotundifolium Klack. 0 below the evidence gate
Exacum sessile L. 0 below the evidence gate
Exacum socotranum Vierh. 0 below the evidence gate
Exacum spathulatum Baker 0 below the evidence gate
Exacum speciosum Klack. 0 below the evidence gate
Exacum stenophyllum Klack. 0 below the evidence gate
Exacum stenopterum Klack. 0 below the evidence gate
Exacum subacaule Humbert 0 below the evidence gate
Exacum subteres Klack. 0 below the evidence gate
Exacum subverticillatum Humbert 0 below the evidence gate
Exacum sutaepense Hosseus ex Craib 0 below the evidence gate
Exacum tenue (Blume) Klack. 0 below the evidence gate
Exacum teres Wall. 0 below the evidence gate
Exacum travancoricum Bedd. 0 below the evidence gate
Exacum trinervium (L.) Druce 0 below the evidence gate
Exacum umbellatum Klack. 0 below the evidence gate
Exacum undulatum Klack. 0 below the evidence gate
Exacum walkeri Arn. ex Griseb. 0 below the evidence gate
Exacum wightianum Arn. 0 below the evidence gate
Exacum zombense N.E.Br. 0 below the evidence gate
Exacum zygomorphum Aver. & K.S.Nguyen 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.