Cardamine bulbosa(Schreb. ex Muhl.) Britton, Sterns & Poggenb.

bulbous cress

WFO wfo-0000586592 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Cardamine bulbosa, photographed by Ryan Sorrells
fig. a Ryan Sorrells, CC BY 4.0 / 2022-05-26 / obs. 200859780
Cardamine bulbosa, photographed by Ryan Sorrells
fig. b Ryan Sorrells, CC BY 4.0 / obs. 191023225
Cardamine bulbosa, photographed by gwt2102
fig. c gwt2102, CC BY 4.0 / obs. 199221471
Cardamine bulbosa, photographed by Ryan Sorrells
fig. d Ryan Sorrells, CC BY 4.0 / obs. 191023834
Cardamine bulbosa, photographed by Tom Field
fig. e Tom Field, CC BY 4.0 / obs. 193578853
Cardamine bulbosa, photographed by the swamp ass
fig. f the swamp ass, CC BY 4.0 / obs. 189283699
Cardamine bulbosa, photographed by Joseph Aubert
fig. g Joseph Aubert, CC BY 4.0 / obs. 188365798
Cardamine bulbosa, photographed by Paul Roots
fig. h Paul Roots, CC BY 4.0 / obs. 188355822

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 = 1,124 observations

Peak flowering in Apr, from 1,124 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 22 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.

  • Arabis amara Banks ex DC.
  • Arabis bulbosa Muhl.
  • Arabis rhomboidea Pers.
  • Cardamine bulbosa f. bulbosa
  • Cardamine bulbosa f. fontinalis E.J.Palmer & Steyerm.
  • Cardamine bulbosa var. purpurea Britton, Sterns & Poggenb.
  • Cardamine purpurea Torr. & A.Gray
  • Cardamine purpurea Britton & A.Brown
  • Cardamine rhomboidea (Pers.) DC.
  • Cardamine rhomboidea f. angustifolia O.E.Schulz
  • Cardamine rhomboidea f. integrifolia O.E.Schulz
  • Cardamine rhomboidea f. microphylla O.E.Schulz
  • Cardamine rhomboidea f. purpurea (Torr.) O.E.Schulz
  • Cardamine rhomboidea var. grandiflora O.E.Schulz
  • Cardamine rhomboidea var. hirsuta O.E.Schulz
  • Cardamine rhomboidea var. parviflora O.E.Schulz
  • Cardamine rhomboidea var. pilosa O.E.Schulz
  • Cardamine rotundifolia Torr. & A.Gray
  • Dentaria rhomboidea (Pers.) Greene
  • Dracamine bulbosa (Schreb. ex Muhl.) Nieuwl.
  • Lepidium tuberosum DC.
  • Nasturtium tuberosum Raf.

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.