Anthoxanthum odoratum

Anthoxanthum odoratum_ sweet vernalgrass_ JM Di Tomaso
Photo: Joseph DiTomaso

Common names: sweet vernal grass; vanilla grass

Anthoxanthum odoratum(sweet vernalgrass) is a perennial grass (family Poaceae) that grows in hay fields, roadsides and along ditches. Sweet vernalgrass is locally common in coastal grasslands in northern California, particularly along the coast.

Cal-IPC Rating: Limited?

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

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.

There are no Symposium presentations associated with this species yet.

Other Anthoxanthum odoratum Information

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

    Anthoxanthum odoratum_florets (closeup)_KeirMorse
    Anthoxanthum odoratum (sweet vernal grass) florets (closeup). Photo: Keir Morse
    Anthoxanthum odoratum_inflorescence(early flower)_ZoyaAkulova
    Anthoxanthum odoratum (sweet vernal grass) inflorescence (early flower). Photo: Zoya Akulova
    Anthoxanthum odoratum_leaf blade, sheath, and stem_ZoyaAkulova
    Anthoxanthum odoratum (sweet vernal grass) leaf blade, sheath and stem. Photo: Zoya Akulova
    Anthoxanthum odoratum_infestation_ZoyaAkulova
    Anthoxanthum odoratum (sweet vernal grass) infestation. Photo: Zoya Akulova