Mutarda nigraBernh.

Black Mustard

WFO wfo-0000369052 Accepted WFO 2026-06 6 photographs CC0 / CC BY

Plate 1 figs. a–f

Mutarda nigra, photographed by Millie Basden
fig. a Millie Basden, CC BY 4.0 / 2022-04-04 / obs. 186328006
Mutarda nigra, photographed by Annette Herz
fig. b Annette Herz, CC BY 4.0 / obs. 183851811
Mutarda nigra, photographed by Leonel Morgado
fig. c Leonel Morgado, CC BY 4.0 / obs. 185993820
Mutarda nigra, photographed by David Lazarus
fig. d David Lazarus, CC0 1.0 / obs. 199108313
Mutarda nigra, photographed by Humber Alberto
fig. e Humber Alberto, CC BY 4.0 / obs. 191696985
Mutarda nigra, photographed by Elly Poretsky
fig. f Elly Poretsky, CC BY 4.0 / obs. 187204861

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 = 650 observations

Peak flowering in Apr, from 650 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 18 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.

  • Brassica bracteolata Fisch. & C.A.Mey.
  • Brassica nigra (L.) W.D.J.Koch
  • Brassica nigra f. hispida O.E.Schulz
  • Brassica nigra subsp. hispida (O.E.Schulz) Gladis
  • Brassica nigra subsp. nigra
  • Brassica nigra var. abyssinica Alexander Br.
  • Brassica nigra var. bracteolata (Fisch. & C.A.Mey.) Spach ex Coss.
  • Brassica nigra var. nigra
  • Brassica nigra var. torulosa (Pers.) Alef.
  • Brassica sinapioides Roth
  • Crucifera sinapis (L.) E.H.L.Krause
  • Erysimum glabrum C.Presl
  • Melanosinapis nigra (L.) Calest.
  • Raphanus sinapis-officinalis Crantz
  • Sinapis erysimoides Roxb.
  • Sinapis nigra L.
  • Sinapis torulosa Pers.
  • Sisymbrium nigrum (L.) Prantl

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.