Ranunculus acrisL.

meadow buttercup

WFO wfo-0000461396 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Ranunculus acris, photographed by Aleksei Baushev
fig. a Aleksei Baushev, CC BY 4.0 / 2022-06-11 / obs. 205250875

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.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 5,045 observations

Flowering observations of Ranunculus acris by month
MonthObservations
Jan50
Feb16
Mar46
Apr418
May1275
Jun1754
Jul670
Aug348
Sep161
Oct168
Nov85
Dec54

Peak flowering in Jun, from 5,045 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 50 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.

  • Ranunculastrum acre Fourr.
  • Ranunculastrum boraeanum Fourr.
  • Ranunculastrum nemorivagum (Jord.) Fourr.
  • Ranunculastrum vulgatum (Jord. ex Boreau) Fourr.
  • Ranunculus acris f. acris
  • Ranunculus acris f. multiplicipetalus B.Boivin
  • Ranunculus acris subsp. despectus Laínz
  • Ranunculus acris subsp. friesianus Rouy & Fouc.
  • Ranunculus acris subsp. glabriusculus (Rupr.) Á.Löve & D.Löve
  • Ranunculus acris subsp. scandinavicus (N.I.Orlova) Á.Löve & D.Löve
  • Ranunculus acris var. acris
  • Ranunculus acris var. latisectus Beck
  • Ranunculus acris var. minimus Vigo
  • Ranunculus acris var. multifidus DC.
  • Ranunculus acris var. pumilus Wahlenb.
  • Ranunculus acris var. sylvaticus (Thuill.) DC.
  • Ranunculus barthii Schur
  • Ranunculus boraeanus Jord.
  • Ranunculus borealis subsp. pumilus (J.Fellm.) Timokhina
  • Ranunculus borealis var. pumilus (J.Fellman) Tolm.
  • Ranunculus buergeri Miq.
  • Ranunculus cammarifolius Arv.-Touv.
  • Ranunculus colocensis Menyh.
  • Ranunculus csatoi Schur

and 26 more.

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.

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