Ranunculus macouniiBritton

Macoun's buttercup

WFO wfo-0001129262 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Ranunculus macounii, photographed by Mary Krieger
fig. a Mary Krieger, CC BY 4.0 / 2021-06-28 / obs. 139734319
Ranunculus macounii, photographed by Trevor Van Loon
fig. b Trevor Van Loon, CC BY 4.0 / obs. 136662705
Ranunculus macounii, photographed by mfeaver
fig. c mfeaver, CC BY 4.0 / obs. 44884049
Ranunculus macounii, photographed by Bev McBride
fig. d Bev McBride, CC0 1.0 / obs. 45421644
Ranunculus macounii, photographed by Mary Krieger
fig. e Mary Krieger, CC BY 4.0 / obs. 20408718
Ranunculus macounii, photographed by Jason Grant
fig. f Jason Grant, CC BY 4.0 / obs. 9046691
Ranunculus macounii, photographed by Mary Krieger
fig. g Mary Krieger, CC BY 4.0 / obs. 20272762
Ranunculus macounii, photographed by Mary Krieger
fig. h Mary Krieger, CC BY 4.0 / obs. 155040756

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 27 botanical countries

Regions where Ranunculus macounii is native: Alaska, Alberta, Arizona, British Columbia, California, Colorado, Idaho, Manitoba, Michigan, Minnesota, Montana, Nebraska, Nevada, New Mexico, Newfoundland, North Dakota, Northwest Territories, Nunavut, Ontario, Oregon, Québec, Saskatchewan, South Dakota, Utah, Washington, Wyoming, Yukon AlaskaAlbertaArizonaBritish ColumbiaCaliforniaColoradoIdahoManitobaMichiganMinnesotaMontanaNebraskaNevadaNew MexicoNewfoundlandNorth DakotaNorthwest TerritoriesNunavutOntarioOregonQuébecSaskatchewanSouth DakotaUtahWashingtonWyomingYukon
Native distribution of Ranunculus macounii, 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
Manitoba MAN
Michigan MIC
Minnesota MIN
Montana MNT
Nebraska NEB
Nevada NEV
New Mexico NWM
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Nunavut NUN
Ontario ONT
Oregon ORE
Québec QUE
Saskatchewan SAS
South Dakota SDA
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 4 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.

  • Ranunculus macounii var. macounii
  • Ranunculus macounii var. oreganus K.C.Davis
  • Ranunculus oreganus (A.Gray) Howell
  • Ranunculus rudis Greene

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.