Festuca myuros

Photo courtesy Joseph DiTomaso

Synonyms: Vulpia myuros

Common names: rat-tail fescue; red-tailed fescue; sixweeksgrass; zorro annual fescue

Festuca myuros (rattail fescue) is an annual grass (family Poaceae) widely distributed in California. This species is one of many introduced annual grasses that reduces habitat for native perennial grasses.

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.
  • 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

    • USDA PLANTS database -
      Federal database with information on identification and distribution, and links to websites in individual states.
    • Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from the UC Berkeley Jepson Herbarium.
    • CalFlora - Distribution information by county based on submitted observations and herbarium specimens.
    • CalPhotos - Images of plants taken mostly in California.
    • Natural Resource Projects Inventory - State database with information on resource management projects throughout California. Query by the species of interest.

    Symposium Presentations

    • Bell, M. D., S. J. Dickens, et al. (2010). Herbicide treatment of an invaded grassland following a prescribed fire. Cal-IPC 2010 Symposium. Ventura, CA, California Invasive Plant Council.
    • Quinn, L., B. Davis, et al. (2006). Does horse manure harbor invasive plants? Cal-IPC Symposium. Rohnert Park, CA.
    • DiTomaso, J. (2003). Fire: Prescribed burning as a management tool. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
    • McGraw, J. (2002). Management of rare native species amidst exotic plant competition: Insights from Santa Cruz County’s endemic sandhills community. California Exotic Pest Plant Council Symposium 2002. Sacramento, CA.
    • Bauder, E. T. (1996). Exotics in the southern California bernal pool ecosystem. California Exotic Pest Plant Council Symposium '96. San Diego, 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.
    • Boyd, D. (1995). Use of fire to control French broom. California Exotic Pest Plant Council Symposium '95. J. Lovich, J. Randall and M. Kelly. Pacific Grove, CA.

    Cal-IPC News Articles

    • Young, S. L. (2002). Exploring alternative methods for vegetation control and maintenance along roadsides. CalEPPC News. 10: 5-7.