Bromus madritensis ssp. rubens (=B. rubens) (red brome)

Bromus madritensis ssp. rubens (=B. rubens)

Photo courtesy Joseph DiTomaso

Bromus madritensis ssp. rubens (=B. rubens) (red brome) is a cool-season annual grass (family Poaceae) found throughout California, especially in the southern part of the state. Red brome invades disturbed areas, roadsides, agricultural fields, rangelands, and forestry sites, in addition to native communities. Red brome is spreading rapidly in desert shrublands, pinyon pine-juniper communities, three-needle pine woodlands, and coastal scrub, where it increases fire frequency and converts habitat to annual grassland.

Cal-IPC Inventory rating: High

Cal-IPC Resources on Bromus madritensis ssp. rubens

• California Invasive Plant Inventory Assessment Form (pdf) - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.
• Species account from Invasive Plants of California's Wildlands - Includes biology and management information.
• Cal-IPC News - Articles from our quarterly newsletter. Each issue is available as a pdf. List of articles on Bromus madritensis ssp. rubens .
• Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium. List of articles on Bromus madritensis.

Cal-IPC News Articles

• Brooks, M. and K. Berry (1999). Ecology and management of alien annual plants in the California desert. CalEPPC News. 7: 4-6.<
• DiTomaso, J. (1998). Results of the CalEPPC questionnaire at Symposium '98 in Ontario. CalEPPC News. 6: 4.
• Gibson, J. and W. Bunn (2006). Factors that control non-native plant species within shaded fuelbreaks at Whiskeytown National Recreation Area. Cal-IPC Symposium, Rohnert Park, CA, California Invasive Plant Council.
• Holt, J. S. (2005). Invasive plants research at UC Riverside. Cal-IPC News. 13: 12-13.

Cal-IPC Symposium Proceedings

• Bauder, E. T. (1996). Exotics in the southern California bernal pool ecosystem. California Exotic Pest Plant Council Symposium '96. San Diego, CA.
• Devender, T. R. V., R. S. Frlger, et al. (1997). Exotic plants in the Sonoran desert region, Arizona and Sonora. California Exotic Pest Plant Council Symposium '97. Concord, CA.
• Lair, K., N. Ritter, et al. (2006). Restoration of retired San Joaquin Valley farmlands using herbicides and activated charcoal. Cal-IPC Symposium. Rohnert Park, CA.

Other Resources on Bromus madritensis ssp. rubens (=B. rubens)

• 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.
• The Nature Conservancy Management Summary - Information compiled by TNC land managers. Photos included for some species.
• 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.

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