Dicentra canadensis(Goldie) Walp.

squirrel corn

WFO wfo-0000644959 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Dicentra canadensis, photographed by Clay Gibbons
fig. a Clay Gibbons, CC BY 4.0 / 2022-06-04 / obs. 203323603
Dicentra canadensis, photographed by kimvano
fig. b kimvano, CC BY 4.0 / obs. 197997854
Dicentra canadensis, photographed by Quinten Wiegersma
fig. c Quinten Wiegersma, CC BY 4.0 / obs. 203746141
Dicentra canadensis, photographed by Quinten Wiegersma
fig. d Quinten Wiegersma, CC BY 4.0 / obs. 199374821
Dicentra canadensis, photographed by Lynn Harper
fig. e Lynn Harper, CC0 1.0 / obs. 199380888
Dicentra canadensis, photographed by Henrique Pacheco
fig. f Henrique Pacheco, CC BY 4.0 / obs. 199213144
Dicentra canadensis, photographed by Tyler Jean
fig. g Tyler Jean, CC BY 4.0 / obs. 195667430
Dicentra canadensis, photographed by Trix Niernberger
fig. h Trix Niernberger, CC0 1.0 / obs. 195500428

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 = 5,619 observations

Peak flowering in Apr, from 5,619 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 7 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.

  • Bicuculla canadensis (Goldie) Millsp.
  • Bikukulla canadensis (Walp.) Druce
  • Capnorchis canadensis (Goldie) Kuntze
  • Corydalis canadensis Goldb.
  • Diclytra canadensis (Goldie) DC.
  • Diclytra canadensis G.Don
  • Dielytra canadensis (Goldie) G.Don

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.