Anemone virginianaL.

tall thimbleweed

WFO wfo-0000535900 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Anemone virginiana, photographed by Mark Apgar
fig. a Mark Apgar, CC BY 4.0 / 2022-06-11 / obs. 205223420
Anemone virginiana, photographed by Clay Gibbons
fig. b Clay Gibbons, CC BY 4.0 / obs. 205030543
Anemone virginiana, photographed by Craig Martin
fig. c Craig Martin, CC0 1.0 / obs. 204137140
Anemone virginiana, photographed by Ryan Sorrells
fig. d Ryan Sorrells, CC BY 4.0 / obs. 200862302
Anemone virginiana, photographed by Mark Apgar
fig. e Mark Apgar, CC BY 4.0 / obs. 205221813
Anemone virginiana, photographed by Thomas Koffel
fig. f Thomas Koffel, CC BY 4.0 / obs. 188631577
Anemone virginiana, photographed by Yann Kemper
fig. g Yann Kemper, CC0 1.0 / obs. 187809334
Anemone virginiana, photographed by Andrew Sebastian
fig. h Andrew Sebastian, CC BY 4.0 / obs. 188171246

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.

Flowering n = 1,253 observations

Peak flowering in Jun, from 1,253 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 14 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.

  • Abelemis petiolaris Raf. ex Britton
  • Adonis riparia Raf.
  • Anemone cylindrica var. alba Oakes
  • Anemone hirsuta Moench
  • Anemone riparia Fernald
  • Anemone riparia f. inconspicua Fernald
  • Anemone riparia f. rhodantha Fernald
  • Anemone virginiana f. leucosepala Fernald
  • Anemone virginiana f. plena E.J.Palmer & Steyerm.
  • Anemone virginiana f. rhodantha (Fernald) B.Boivin
  • Anemone virginiana f. rubrosepala House
  • Anemone virginiana f. virginiana
  • Anemone virginiana var. riparia (Fernald) B.Boivin
  • Anemone virginiana var. virginiana

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.