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Taxon  Report  
Euphorbia helioscopia  L.
Madwoman's milk,   Wartweed
Euphorbia helioscopia is an annual herb that is not native to California.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
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Bloom Period
Genus: Euphorbia
Family: Euphorbiaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Severe skin irritation from touching the sap of this plant.

Habitat: disturbed

Communities: weed, characteristic of disturbed places

Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSGalarhoeus helioscopius
PLANTSTithymalus helioscopius
Information about  Euphorbia helioscopia from other sources

Poison Control: Keep Away From Spurge Sap: Skin exposures to spurge sap ... typically result in redness of the exposed skin, swelling, and blistering. If someone has had a skin exposure to spurge sap, have them remove any contaminated clothing and gently wash the exposed skin with soap and water.

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/03/2023).