Brassica tournefortii

Brassica tournefortii_Saharan mustard_JM DiTomaso
Photo: Joseph DiTomaso

Common names: Sahara mustard; Morrocan mustard; Asian mustard

Brassica tournefortii (Saharan mustard or African mustard) is a winter annual (family Brassicaceae) found in deserts, desert dunes, and coastal scrub, including the San Joaquin Valley, Sonoran and Mojave Deserts, and southwestern region of California. Saharan mustard readily invades newly burned areas, and is known to increase fire frequency and fuel load. Increased fire frequency can cause scrub habitats to convert to grasslands because the native shrubs are not adapted to recurrent fires. The high biomass of Saharan mustard, along with frequent fires, may deplete soils of important nutrients, making native habitat recovery more difficult.

Cal-IPC Rating: High?

CDFA Rating: C?


Plant Assessment Form - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.

Species ID Card

Invasive Species ID Card - To support field identification of early detection species, Cal-IPC has designed a set of Species ID cards that can be downloaded, printed double-sided, and trimmed to size.

Weed Management Notes

  • Management Notes - Information on management techniques and effectiveness from the University of California Cooperative Extension’s Weed Research & Information Center.

Cal-IPC Newsletter Articles

Cal-IPC Symposium Presentations

Presentations are linked where available. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive.

Other Brassica tournefortii Information

  • CalPhotos - Images of plants taken mostly in California.
  • Calflora - Distribution map and records of this species in California.
  • CalWeedMapper - Distribution map of this species in California with ability to determine regional priorities.
  • EDDMapS - Distribution of this species in North America.
  • Jepson Interchange - Information on this plant's taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Information on identification and distribution, with links to websites in individual states.
  • Additional photos

    Brassica tournefortii_flower_Ron Vanderhoff_cropped
    Brassica tournefortii (Sahara mustard) flower. Photo: Ron Vanderhoff
    Brassica tournefortii_fruits_Ron Vanderhoff_cropped
    Brassica tournefortii (Sahara mustard) fruits. Photo: Ron Vanderhoff
    Brassica tournefortii_growth habit (small plant)_Ron Vanderhoff_cropped
    Brassica tournefortii (Sahara mustard) growth habit (small plant). Photo: Ron Vanderhoff
    Brassica tournefortii_infestation_Ron Vanderhoff_cropped
    Brassica tournefortii (Sahara mustard) infestation. Photo: Ron Vanderhoff
    Brassica tournefortii_leaves_Ron Vanderhoff_cropped
    Brassica tournefortii (Sahara mustard) leaves. Photo: Ron Vanderhoff