Verbena bonariensis

Verbena bonariensis_S58-02
Photo courtesy 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

Cal-IPC Assessment

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 - See the distribution of this species on Calflora's map of California.
  • Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Federal database with information on identification and distribution, and links to websites in individual states.
  • EDD MapS - North American distribution based on Early Detection and Distribution Mapping System.