Poa cusickiiVasey

Cusick's bluegrass

WFO wfo-0000892066 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 1 observation

This species has been photographed under an open licence only 1 time, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Poa cusickii, photographed by Trevor Van Loon
fig. a Trevor Van Loon, CC BY 4.0 / 2021-07-17 / obs. 149789267
Poa cusickii, photographed by Trevor Van Loon
fig. b Trevor Van Loon, CC BY 4.0 / obs. 149789253
Poa cusickii, photographed by Trevor Van Loon
fig. c Trevor Van Loon, CC BY 4.0 / obs. 149789245
Poa cusickii, photographed by Trevor Van Loon
fig. d Trevor Van Loon, CC BY 4.0 / obs. 149789293
Poa cusickii, photographed by Trevor Van Loon
fig. e Trevor Van Loon, CC BY 4.0 / obs. 149789285
Poa cusickii, photographed by Trevor Van Loon
fig. f Trevor Van Loon, CC BY 4.0 / obs. 149789262
Poa cusickii, photographed by Trevor Van Loon
fig. g Trevor Van Loon, CC BY 4.0 / obs. 149789255
Poa cusickii, photographed by Trevor Van Loon
fig. h Trevor Van Loon, CC BY 4.0 / obs. 149789614

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 15 botanical countries

Regions where Poa cusickii is native: Alberta, British Columbia, California, Colorado, Idaho, Manitoba, Montana, Nevada, North Dakota, Oregon, Saskatchewan, Utah, Washington, Wyoming, Yukon AlbertaBritish ColumbiaCaliforniaColoradoIdahoManitobaMontanaNevadaNorth DakotaOregonSaskatchewanUtahWashingtonWyomingYukon
Native distribution of Poa cusickii, 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
Alberta ABT NORTHERN AMERICA
British Columbia BRC
California CAL
Colorado COL
Idaho IDA
Manitoba MAN
Montana MNT
Nevada NEV
North Dakota NDA
Oregon ORE
Saskatchewan SAS
Utah UTA
Washington WAS
Wyoming WYO
Yukon YUK

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 23 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.

  • Poa alpina var. purpurascens Beal
  • Poa alpina var. purpurascens Vasey
  • Poa capillarifolia Scribn. & T.A.Williams
  • Poa cottonii Piper
  • Poa cusickii subsp. cusickii
  • Poa cusickii subsp. epilis (Scribn.) W.A.Weber
  • Poa cusickii subsp. pallida Soreng
  • Poa cusickii subsp. purpurascens (Beal) Soreng
  • Poa cusickii var. cusickii
  • Poa cusickii var. epilis (Scribn.) C.L.Hitchc.
  • Poa cusickii var. purpurascens (Beal) C.L.Hitchc.
  • Poa epilis Scribn.
  • Poa filifolia Vasey
  • Poa idahoensis Beal
  • Poa paddensis T.A.William
  • Poa purpurascens Vasey
  • Poa purpurascens var. epilis (Scribn.) M.E.Jones
  • Poa scaberrima Rydb.
  • Poa scabrifolia A.Heller
  • Poa spillmanii Piper
  • Poa subaristata Scribn. ex Beal
  • Poa subaristata var. orendensis T.A.Williams ex Pammel
  • Poa subpurpurea Rydb.

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.