Hirschfeldia incana

Hirschfeldia incana_shortpod mustard_flower_ M JM DiTomaso
Photo courtesy Joseph DiTomaso

Synonyms: Brassica geniculata, Sinapsis geniculata, Sinapsis incana

Common names: short-pod mustard; Mediterranean mustard; summer mustard; Greek mustard

Hirschfeldia incana (shortpod mustard, summer mustard) is a biennial or short-lived perennial forb (family Brassicaceae) that is becoming an increasing problem in wildlands of southern California. It occurs in coastal scrub and grasslands.

Cal-IPC Rating: Moderate

Cal-IPC Assessment

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.

Cal-IPC Newsletter Articles

Cal-IPC Symposium Presentations

  • Irvine, I., M. Witter, et al. (2009). Evidence that plant-associated methylotrophic bacteria aid in grassland and coastal sage scrub restoration. Cal-IPC Symposium 2009. Visalia, CA, California Invasive Plant Council.
  • Archbald, G. (1998). Mechanical control methods: beyond weed bashing. California Exotic Pest Plant Council Symposium '98. Ontario, CA.
  • Giessow, J. and P. Zedler (1996). The effects of fire frequency and firebreaks on the abundance and species richness of exotic plant species in coastal sage scrub. California Exotic Pest Plant Council Symposium '96. San Diego, CA.
  • Quinn, L., B. Davis, et al. (2006). Does horse manure harbor invasive plants? Cal-IPC Symposium. Rohnert Park, CA.

Other Hirschfeldia incana Information

  • CalPhotos - Images of plants taken mostly in California.
  • CalFlora - Distribution information based on submitted observations and herbarium specimens.
  • CalWeedMapper - Distribution information with ability to determine regional priorities.
  • Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Federal database with information on identification and distribution, and links to websites in individual states.