Dicentra cucullaria(L.) Bernh.

Dutchman's breeches

WFO wfo-0000644961 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Dicentra cucullaria, photographed by Clay Gibbons
fig. a Clay Gibbons, CC BY 4.0 / 2022-06-04 / obs. 203323469
Dicentra cucullaria, photographed by Quinten Wiegersma
fig. b Quinten Wiegersma, CC BY 4.0 / obs. 203746045
Dicentra cucullaria, photographed by Violet T.
fig. c Violet T., CC BY 4.0 / obs. 200303055
Dicentra cucullaria, photographed by Violet T.
fig. d Violet T., CC BY 4.0 / obs. 200303468
Dicentra cucullaria, photographed by maureen_c-m
fig. e maureen_c-m, CC BY 4.0 / obs. 200117915
Dicentra cucullaria, photographed by Derek
fig. f Derek, CC BY 4.0 / obs. 196605612
Dicentra cucullaria, photographed by Jackson Kusack
fig. g Jackson Kusack, CC0 1.0 / obs. 197778543
Dicentra cucullaria, photographed by Mary E. Macaulay, P.Eng.
fig. h Mary E. Macaulay, P.Eng., CC BY 4.0 / obs. 202569201

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 = 18,649 observations

Peak flowering in Apr, from 18,649 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 25 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 cucullaria (L.) Millsp.
  • Bicuculla occidentalis Rydb.
  • Bicucullata canadensis Juss. ex Borkh.
  • Bikukulla cucullaria (L.) Millsp.
  • Capnorchis americana Boerh. ex Borckh
  • Capnorchis cucullaria (L.) Planch.
  • Capnorchis occidentalis (Rydb.) House
  • Corydalis cucullaria (L.) Pers.
  • Cucularia bulbosa Raf.
  • Dicentra cucullaria f. cucullaria
  • Dicentra cucullaria f. purpuritincta Eames
  • Dicentra cucullaria var. cucullaria
  • Dicentra cucullaria var. occidentalis (Rydb.) M.Peck
  • Dicentra occidentalis (Rydb.) Fedde
  • Diclytra bracteosa DC.
  • Diclytra canadensis Borkh.
  • Diclytra cucullaria (L.) DC.
  • Diclytra cucullaria var. divaricata DC.
  • Dielytra bracteosa (DC.) G.Don
  • Dielytra bracteosa Spreng
  • Dielytra cucullaria (L.) G.Don
  • Dielytra cucullaria Spreng
  • Fumaria bicalcarata Stokes
  • Fumaria cucullaria L.

and 1 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.