Brassica Kaber
Wild Mustard  


Regional Noxious. Annual or winter annual.
Wild mustard has bright yellow, four-petal flowers in small clusters sitting on thick stalks. The stems are branched near the top and have upper leaves that are toothed and lower leaves with deep lobes, both hairy underneath. Mature plants are 0.3 - 1 m tall.

Wild mustard can invade cereal and other field crops as well as disturbed areas. It reduces crop yields, lowers crop value, and can reduce livestock forage production on pastures.

In British Columbia, wild mustard is found at lower elevations at the coast and Interior grasslands, where it grows on fields and disturbed habitats. In other areas it is commonly found in crops and along roadsides. It is rare in southwestern and south central BC, but it is considered a major concern to the Peace River agricultural region.

Wild mustard is spread by seed. Each plant produces 2,000 - 3,500 seeds that may remain viable in the soil for several years.


Weeds BC home Weeds BC home Resources