Common names: carnation spurge; Geraldton carnationweed
Euphorbia terracina (carnation spurge) is a perennial or biennial species(family Euphorbiaceae) found on California’s south coast. Carnation spurge forms dense patches in disturbed grasslands, coastal bluffs, dunes, salt marshes, riparian areas and oak woodlands. Although carnation spurge was recently introduced to California and is not yet widely distributed, it has the potential to spread rapidly. Like many other members of the spurge family, it produces toxic sap, and has allelopathic properties that reduce germination of native plants.Rating: Limited
- 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.
- CalWeedMapper - Statewide maps, climate models, and reports.
- Cal-IPC News - Our quarterly newsletter. Each issue is available as a pdf.
- Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium.
- Don't Plant a Pest! - Select your region to find non-invasive alternatives to ornamental species. Also see our statewide brochure on trees.
- USDA PLANTS database -
Federal database with information on identification and distribution, and links to websites in individual states.
- Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from the UC Berkeley Jepson Herbarium.
- CalFlora - Distribution information by county based on submitted observations and herbarium specimens.
- The Nature Conservancy Management Summary - Information compiled by TNC land managers. Photos included for some species.
- CalPhotos - Images of plants taken mostly in California.
- Dorsey, A., E. Avina, et al. (2010). Euphorbia terracina: Why worry? . Cal-IPC 2010 Symposium Ventura, CA, California Invasive Plant Council
- Avina, E., A. Dorsey, et al. (2009). Experimental test of different treatments for control of terracina spurge (Euphorbia terracina): Comparison of hand pulling, glyphosate, and chlorsulfuron. Cal-IPC Symposium 2009. Visalia, CA, Cal-IPC.
- Dickerson, E., C. Brigham, et al. (2004). Ecohelpers: Education and ecological restoration in Southern California. California Invasive Plant Council Symposium 2004. Ventura, CA.
Cal-IPC News Articles
- Case, B. (2011). Dangerous and invasive Euphorbias in California. Cal-IPC News. 18: 8, 9.
- Brigham, C. (2005). High school students take on carnation spurge. Cal-IPC News. 13: 6.