Verbena bonariensis

Verbena bonariensis_S58-02
Photo: UC Davis Weeds of California

Common names: tall vervain

Verbena bonariensis (tall vervain) is a herb/ (family Verbenaceae) with purple flowers and narrow toothed leaves found in the Central Valley and the central and south coast ranges of California. It is native to South America. It favors grasslands and riparian and bottomland habitat. It readily self-seeds and is dispersed via animals, wind and water.

Cal-IPC Rating: Watch

CDFA Rating: None?


Plant Risk Assessment - An evaluation of the potential for a plant to be invasive in California.

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.

There are no Symposium presentations associated with this species yet.

Other Verbena bonariensis 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

    Verbena bonariensis_inflorescence_BarryBreckling
    Verbena bonariensis (tall vervain) inflorescence. Photo: Barry Breckling
    Verbena bonariensis_seedling_ZoyaAkulova
    Verbena bonariensis (tall vervain) seedling. Photo: Zoya Akulova
    Verbena bonariensis_seed_JeanPawek
    Verbena bonariensis (tall vervain) seed. Photo: Jean Pawek
    Verbena bonariensis_growth habit_JeanPawek
    Verbena bonariensis (tall vervain) growth habit. Photo: Jean Pawek