Source: California Invasive Plant Council

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Agrostis avenacea (Pacific bentgrass)

Agrostis avenacea
Agrostis avenacea
Photo courtesy Joseph DiTomaso

Agrostis avenacea (Pacific bentgrass) is a perennial grass (family Pocaceae) commonly found throughout northern California and San Diego County. This weed easily outcompetes native vegetation. Pacific bentgrass inhabits open, disturbed, often moist places to 300 m elevation. It is especially invasive in vernal pool habitat in the San Diego area.

Cal-IPC Inventory rating: Limited

Cal-IPC Resources on Agrostis avenacea

Cal-IPC News Articles

  • Meisler, Julian. (2012). Best laid plans... Australian bentgrass (Agrostis avenacea) invades following seasonal wetland enhancement. Cal-IPC News. 20 No. 3: 4, 5, 10.

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.

Other Resources on Agrostis avenacea

  • 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.