Saharan Mustard

Brassica tournefortii

Recommended action: PULL! If seeds are present, carefully bag them and throw them away.

Saharan mustard was originally brought to North America in the 1920's with date palms imported to the Coachella Valley. In the last 30 years this weed has spread alongside roads throughout the Mojave desert and is now invading hillsides and mountain tops. This weed sprouts earlier than native plants, grows taller, and produces thousands of seeds capable of surviving many years. Although it is already widespread, there are still natural places we can protect.

What you can do is control the plant on your own property. Each plant is capable of producing up to 10,000 seeds so every little bit helps. Also, when you are driving into parks or wilderness, make sure there are no dead plants in the undercarriage of your car or seeds on your floor mats. If you see a Saharan mustard on public lands, go ahead and pull it. If it has seeds, please be sure to bag the seeds and throw them away when you get home.

Photo by Jane Cipra
Photo by Jane Cipra