Bromus tectorum

Photo courtesy Joseph DiTomaso

Common names: cheatgrass; downy brome

Bromus tectorum (downy brome, cheatgrass) is an annual grass (family Poaceae). It is the dominant grass on sagebrush (Artemisia species) rangelands on the Modoc Plateau in northeastern California and along the eastern Sierra Nevada to Owens Valley. This weed overcrowds native grasslands and croplands. Replacement of native grasses by cheatgrass increases the frequency and extent of wildfires.

Cal-IPC Rating: High

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

  • Concilio, A. and M. E. Loik (2011). Effects of changing precipitation patterns on the spread of Bromus tectorum L. in the eastern Sierra Nevada and implications for management. Cal-IPC 2011 Symposium. Tahoe City, CA, California Invasive Plant Council.
  • Del Favero, S. (2011). A predictive model of Bromus tectorum occurrence in Yosemite National Park. Cal-IPC 2011 Symposium. Tahoe City, CA, California Invasive Plant Council.
  • Turner, I. (2010). Mapping flammable invasive weeds in the South Shore area of Lake Tahoe. Cal-IPC 2010 Symposium. Ventura, CA, California Invasive Plant Council.
  • Rowe, C. J. and E. Leger (2009). Comparing the competitive ability of Elymus multisetus seedlings collected from invaded and uninvaded habitats. Cal-IPC Symposium 2009. Visalia, CA California Invasive Plant Council.
  • DiTomaso, J. M. (2005). Efficacy and safety of new herbicides on the horizon. California Invasive Plant Council Symposium 2005. Chico, CA.
  • Maher, E. and E. Stanton (2005). Blurring edges: A test of weed control methods used along edges of sage scrub patches to encourage shrub colonization into abandoned agricultural fields. California Invasive Plant Council Symposium 2005. Chico, CA.
  • White, V. A. and J. S. Holt (2001). Emergence and development of Cynara cardunculus: Developing seedling removal strategies for an invasive weed. California Exotic Pest Plant Council Symposium 2001. San Diego, CA.
  • Young, J. A. and R. R. Blank (1995). Cheatgrass and wildfires in the intermountain west. California Exotic Pest Plant Council Symposium '95. J. Lovich, J. Randall and M. Kelly. Pacific Grove, CA.

Other Bromus tectorum 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.
  • Bugwood - National database from the Center for Invasive Species and Ecosystem Health at the University of Georgia.