Triantha occidentalis(S.Watson) R.R.Gates

western false asphodel

WFO wfo-0000747900 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Triantha occidentalis, photographed by Hilary Rose Dawson
fig. a Hilary Rose Dawson, CC BY 4.0 / 2021-11-05 / obs. 167505137
Triantha occidentalis, photographed by Diego Blanco
fig. b Diego Blanco, CC0 1.0 / obs. 148692562
Triantha occidentalis, photographed by Diego Blanco
fig. c Diego Blanco, CC0 1.0 / obs. 148692557
Triantha occidentalis, photographed by Ashwin Srinivasan
fig. d Ashwin Srinivasan, CC BY 4.0 / obs. 148171519
Triantha occidentalis, photographed by John Brew
fig. e John Brew, CC BY 4.0 / obs. 95443085
Triantha occidentalis, photographed by Tom Erler
fig. f Tom Erler, CC0 1.0 / obs. 87098097
Triantha occidentalis, photographed by Don Loarie
fig. g Don Loarie, CC BY 4.0 / obs. 84810199
Triantha occidentalis, photographed by Nolan Exe
fig. h Nolan Exe, CC BY 4.0 / obs. 51636734

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 9 botanical countries

Regions where Triantha occidentalis is native: Alaska, Alberta, British Columbia, California, Idaho, Montana, Oregon, Washington, Wyoming AlaskaAlbertaBritish ColumbiaCaliforniaIdahoMontanaOregonWashingtonWyoming
Native distribution of Triantha occidentalis, 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
Alaska ASK NORTHERN AMERICA
Alberta ABT
British Columbia BRC
California CAL
Idaho IDA
Montana MNT
Oregon ORE
Washington WAS
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.

Also published as 17 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.

  • Asphodeliris occidentalis (S.Watson) Kuntze
  • Tofieldia glutinosa subsp. absona C.L.Hitchc.
  • Tofieldia glutinosa subsp. brevistyla C.L.Hitchc.
  • Tofieldia glutinosa subsp. montana C.L.Hitchc.
  • Tofieldia glutinosa subsp. occidentalis (S.Watson) C.L.Hitchc.
  • Tofieldia glutinosa var. absona (C.L.Hitchc.) R.J.Davis
  • Tofieldia glutinosa var. brevistyla (C.L.Hitchc.) C.L.Hitchc.
  • Tofieldia glutinosa var. intermedia (Rydb.) B.Boivin
  • Tofieldia glutinosa var. montana (C.L.Hitchc.) R.J.Davis
  • Tofieldia glutinosa var. montana (C.L.Hitchc.) R.J.Davis
  • Tofieldia glutinosa var. occidentalis (S.Watson) C.L.Hitchc.
  • Tofieldia intermedia Rydb.
  • Tofieldia intermedia subsp. absona C.L.Hitchc.
  • Tofieldia occidentalis S.Watson
  • Tofieldia occidentalis subsp. brevistyla C.L.Hitchc.
  • Tofieldia occidentalis var. intermedia (Rydb.) M.Peck
  • Triantha intermedia (Rydb.) R.R.Gates

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.