Muhlenbergia richardsonis(Trin.) Rydb.

mat muhly

WFO wfo-0000880910 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Muhlenbergia richardsonis, photographed by Trevor Van Loon
fig. a Trevor Van Loon, CC BY 4.0 / 2022-05-28 / obs. 202330713
Muhlenbergia richardsonis, photographed by Tim Messick
fig. b Tim Messick, CC BY 4.0 / obs. 154794689
Muhlenbergia richardsonis, photographed by Steve Matson
fig. c Steve Matson, CC BY 4.0 / obs. 126986427
Muhlenbergia richardsonis, photographed by Tim Messick
fig. d Tim Messick, CC BY 4.0 / obs. 78243325
Muhlenbergia richardsonis, photographed by Martin Purdy
fig. e Martin Purdy, CC BY 4.0 / obs. 49185620
Muhlenbergia richardsonis, photographed by Matt Lavin
fig. f Matt Lavin, CC BY 4.0 / obs. 159392961
Muhlenbergia richardsonis, photographed by Matt Lavin
fig. g Matt Lavin, CC BY 4.0 / obs. 159392929
Muhlenbergia richardsonis, photographed by Jim Morefield
fig. h Jim Morefield, CC BY 4.0 / obs. 38656635

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 31 botanical countries

Regions where Muhlenbergia richardsonis is native: Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Maine, Manitoba, Mexico Central, Mexico Northeast, Mexico Northwest, Michigan, Minnesota, Montana, Nebraska, Nevada, New Brunswick, New Mexico, North Dakota, Northwest Territories, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Washington, Wisconsin, Wyoming, Yukon AlaskaAlbertaArizonaBritish ColumbiaCaliforniaColoradoIdahoMaineManitobaMexico CentralMexico NortheastMexico NorthwestMichiganMinnesotaMontanaNebraskaNevadaNew BrunswickNew MexicoNorth DakotaNorthwest TerritoriesOntarioOregonQuébecSaskatchewanSouth DakotaUtahWashingtonWisconsinWyomingYukon
Native distribution of Muhlenbergia richardsonis, 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
Arizona ARI
British Columbia BRC
California CAL
Colorado COL
Idaho IDA
Maine MAI
Manitoba MAN
Mexico Central MXC
Mexico Northeast MXE
Mexico Northwest MXN
Michigan MIC
Minnesota MIN
Montana MNT
Nebraska NEB
Nevada NEV
New Brunswick NBR
New Mexico NWM
North Dakota NDA
Northwest Territories NWT
Ontario ONT
Oregon ORE
Québec QUE
Saskatchewan SAS
South Dakota SDA
Utah UTA
Washington WAS
Wisconsin WIS
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 9 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.

  • Muhlenbergia aspericaulis Nees ex Steud.
  • Muhlenbergia brevifolia var. richardsonis (Trin.) M.E.Jones
  • Muhlenbergia squarrosa Rydb.
  • Sporobolus aspericaulis Scribn.
  • Sporobolus depauperatus Scribn.
  • Sporobolus richardsonis (Trin.) Merr.
  • Vilfa depauperata Torr. ex Hook.
  • Vilfa richardsonis Trin.
  • Vilfa squarrosa Trin.

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.