Gentianopsis thermalis(Kuntze) Iltis

Rocky Mountain fringed gentian

WFO wfo-0000699637 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Gentianopsis thermalis, photographed by John G. Phillips
fig. a John G. Phillips, CC BY 4.0 / 2021-08-25 / obs. 166162978
Gentianopsis thermalis, photographed by Matt Berger
fig. b Matt Berger, CC BY 4.0 / obs. 145308289
Gentianopsis thermalis, photographed by John Powers
fig. c John Powers, CC BY 4.0 / obs. 109180978
Gentianopsis thermalis, photographed by John Powers
fig. d John Powers, CC BY 4.0 / obs. 109116776
Gentianopsis thermalis, photographed by John Powers
fig. e John Powers, CC BY 4.0 / obs. 109122611
Gentianopsis thermalis, photographed by John Powers
fig. f John Powers, CC BY 4.0 / obs. 109116787
Gentianopsis thermalis, photographed by Cecelia Alexander
fig. g Cecelia Alexander, CC0 1.0 / obs. 106845885
Gentianopsis thermalis, photographed by Bob Walker
fig. h Bob Walker, CC BY 4.0 / obs. 91325055

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 7 botanical countries

Regions where Gentianopsis thermalis is native: Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming ColoradoIdahoMontanaNevadaNew MexicoUtahWyoming
Native distribution of Gentianopsis thermalis, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Colorado COL NORTHERN AMERICA
Idaho IDA
Montana MNT
Nevada NEV
New Mexico NWM
Utah UTA
Wyoming WYO

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 244 in flower of 247 examined

Peak flowering in Jun. Each bar is the share of Gentianopsis thermalis observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 244 of 247 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 12 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Anthopogon elegans (A.Nelson) Rydb.
  • Anthopogon thermalis (Kuntze) Rydb.
  • Gentiana detonsa var. unicaulis (A.Nelson) C.L.Hitchc.
  • Gentiana elegans A.Nelson
  • Gentiana elegans var. brevicalycina Wettst.
  • Gentiana elegans var. unicaulis A.Nelson
  • Gentiana moseleyi A.Nelson
  • Gentiana thermalis Kuntze
  • Gentianella detonsa subsp. elegans (A.Nelson) J.M.Gillett
  • Gentianella detonsa var. elegans (A.Nelson) Dorn
  • Gentianopsis detonsa var. elegans (A.Nelson) N.H.Holmgren
  • Gentianopsis elegans (A.Nelson) Ma

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.