Euphorbia lathyris

Euphorbia lathyris_C118-01
Photo courtesy UC Davis Weeds of California

Common names: caper spurge

Euphorbia lathyris (caper spurge) is a herb/ (family Euphorbiaceae) with green-yellow flowers and thin narrow leaves found in the coastal ranges, western ranges, the Central Valley, and desert ranges of California. It is native to Europe. It occurs in grasslands, marshes, dunes, scrub and chaparral habitats. It spreads via seed and is dispersed by water, machinery and dumped garden waste.

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

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 Euphorbia lathyris 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.