Dittrichia viscosa

Dittrichia viscosa_Richard Spellenberg
Photo by Richard Spellenberg

Common names: false yellowhead

Dittrichia viscosa (false yellowhead) is a perennial herb/subshrub (family Asteraceae) with golden-yellow flowers and thin toothed leaves found in the Sacramento Valley and San Francisco Bay area in California. It is native to the Mediterranean Basin. It favors grasslands, wetlands, and riparian and bottomland habitat. It reproduces by seed and is spread primarily via wind and water.

Cal-IPC Rating: Watch

CDFA Rating: A

Cal-IPC Assessment

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

Weed Management Notes

No Weed RIC Management Notes are available for this species. Check for information on other species in the genus on the Weed RIC site.

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 Dittrichia viscosa 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.
  • EDDMapS - North American distribution based on Early Detection and Distribution Mapping System.