Volutaria tubuliflora

Volutaria tubuliflora_Ron Vanderhoff
Photo by Ron Vanderhoff

Synonyms: Amberboa atlantica; Volutaria lippii subsp. tubuliflora

Common names: desert knapweed; Mediterranean knapweed

Volutaria tubuliflora (desert knapweed) is an annual herb (family Asteraceae) with pink-purple flowers and lobed hairy leaves found in the desert ranges and south coast ranges of California. It is native to northern Africa and the Mediterranean Basin. It favors grasslands, dunes, scrub and chaparral habitat. It propagates via multitudes of seeds. Seeds are dispersed via human traffic, machinery, water and wind.

Cal-IPC Rating: Limited — Alert

Cal-IPC Assessment

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 RIC 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 Volutaria tubuliflora 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.
  • CDFA - California official noxious weeds.
  • Bugwood - National database from the Center for Invasive Species and Ecosystem Health at the University of Georgia.