Dittrichia viscosa

Dittrichia viscosa_Richard Spellenberg
Photo: 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?


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.

Other Dittrichia viscosa 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

    Dittrichia viscosa_flower heads with dispersing seed_ZoyaAkulova
    Dittrichia viscosa (false yellowhead) flower heads with dispersing seed. Photo: Zoya Akulova
    Dittrichia viscosa_flower heads_ZoyaAkulova
    Dittrichia viscosa (false yellowhead) flower heads. Photo: Zoya Akulova
    Dittrichia viscosa_leaves and stem_ZoyaAkulova
    Dittrichia viscosa (false yellowhead) leaves and stem. Photo: Zoya Akulova
    Dittrichia viscosa_growth habit_ZoyaAkulova
    Dittrichia viscosa (false yellowhead) growth habit. Photo: Zoya Akulova