Rapistrum rugosum(L.) All.

annual bastard cabbage

WFO wfo-0000402573 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Rapistrum rugosum, photographed by Annika Lindqvist
fig. a Annika Lindqvist, CC BY 4.0 / 2022-04-16 / obs. 189166546
Rapistrum rugosum, photographed by Meghan Cassidy
fig. b Meghan Cassidy, CC BY-SA 4.0 / obs. 195433342
Rapistrum rugosum, photographed by Brad Banner
fig. c Brad Banner, CC BY 4.0 / obs. 193425350
Rapistrum rugosum, photographed by Humber Alberto
fig. d Humber Alberto, CC BY 4.0 / obs. 191998573
Rapistrum rugosum, photographed by Andy Jordan
fig. e Andy Jordan, CC BY 4.0 / obs. 190689128
Rapistrum rugosum, photographed by Eduardo Luis Beltrocco
fig. f Eduardo Luis Beltrocco, CC BY 4.0 / obs. 184731043
Rapistrum rugosum, photographed by Sam Kieschnick
fig. g Sam Kieschnick, CC BY 4.0 / obs. 186993509
Rapistrum rugosum, photographed by Annika Lindqvist
fig. h Annika Lindqvist, CC BY 4.0 / obs. 183305457

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 = 1,396 observations

Peak flowering in Apr, from 1,396 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 44 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.

  • Arthrolobus rugosus Andrz. ex DC.
  • Bunias perennis Moench
  • Bunias raphanifolia Sm.
  • Bunias verrucosa Moench
  • Cakile clavata (DC.) Spreng.
  • Cakile rugosa (L.) L'Hér. ex DC.
  • Cakile rugosa var. stylosa DC.
  • Cochlearia rugosa (L.) Crantz
  • Cordylocarpus glaber Dietr. ex Steud.
  • Crucifera erratica E.H.L.Krause
  • Crucifera rugosa E.H.L.Krause
  • Hirschfeldia hispanica (L.) Linding.
  • Myagrum clavatum Poir.
  • Myagrum hispanicum L.
  • Myagrum monospermum Forssk.
  • Myagrum orientale L.
  • Myagrum procumbens Pourr.
  • Myagrum rugosum L.
  • Myagrum rugosum var. clavatum Poir.
  • Myagrum venosum Pers.
  • Rapistrum clavatum (Poir.) DC.
  • Rapistrum confusum Pomel
  • Rapistrum conoideum Pomel
  • Rapistrum glabrum Host

and 20 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.