nitrates glucosinolates
Flower Color:
  • flower color
haybales, fields, roadsides, wasteareas, gardens

Time of Greatest Risk


Geographical Distribution

Wild mustard distribution - United States

Related Species

Wild Mustard

Brassica kaber

Charlock, California Rape, Chinese Mustard, Gal Choy, Brown Mustard
5/ 10
Wild mustard (Brassica kaber) is an annual herbaceous plant with upright stems and yellow flowers arranged in clusters at the tips of the branches and borne on stalks.

Toxic components
All parts of B. kaber contains sinigrin, which in the presence of the enzyme myrosinase, is converted to glucose, allyl isothiocyanate (mustard oil), and potassium hydrogen sulfate. Mustard oils are poisonous. The toxicity, by ingestion, of allyl isothiocyanate has been determined to be 0.001% of the body weight. Also, mustards occasionally contain toxic concentrations of nitrate that may complicate toxicosis.

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