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.

Rating: Moderate

Cal-IPC Resources

  • 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.
  • CalWeedMapper - Statewide maps, climate models, and reports.
  • Cal-IPC News - Our quarterly newsletter. Each issue is available as a pdf.
  • Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium.
  • Don't Plant a Pest! - Select your region to find non-invasive alternatives to ornamental species. Also see our statewide brochure on trees.

    Other Resources

    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.

    Cal-IPC News Articles

    • Kitz, J. (2000). Federally listed species vs. mustard. CalEPPC News. 8: 12.
    • Perala, C., D. A. Hoover, et al. (1993). Control of exotic plants in an herbaceous understory. CalEPPC News. 1: 4-6.