Avena fatua

Avena fatua_wildoat_ JM Di Tomaso
Photo: Joseph DiTomaso

Common names: wild oats

Avena fatua (wild oat) is a winter annual grass (family Poaceae) that is a common agricultural weed. It grows in most grassland sites within the state, particularly in sandy/poor soils, often on the road verges. It is one of the annual grasses that was introduced as a forage species and has replaced the native perennial grasses.

Cal-IPC Rating: Moderate?

CDFA Rating: None?


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.

Weed Management Notes

  • Management Notes - Information on management techniques and effectiveness from the University of California Cooperative Extension’s Weed Research & Information Center.

Cal-IPC Newsletter Articles

There are no newsletter articles associated with this species yet.

Cal-IPC Symposium Presentations

Presentations are linked where available. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive.

Other Avena fatua Information

  • CalPhotos - Images of plants taken mostly in California.
  • Calflora - Distribution map and records of this species in California.
  • CalWeedMapper - Distribution map of this species in California with ability to determine regional priorities.
  • EDDMapS - Distribution of this species in North America.
  • Jepson Interchange - Information on this plant's taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Information on identification and distribution, with links to websites in individual states.
  • Additional photos

    Avena fatua__lemma_Ron Vanderhoff_cropped
    Avena fatua (wild oats) lemma. Photo: Ron Vanderhoff
    Avena fatua_infestation_Ron Vanderhoff_cropped
    Avena fatua (wild oats) infestation. Photo: Ron Vanderhoff
    Avena fatua_inflorescence_Ron Vanderhoff_cropped
    Avena fatua (wild oats) inflorescence. Photo: Ron Vanderhoff