Calflora Taxon Report
Euphorbia helioscopia L.
Wartweed
Euphorbia helioscopia is an annual herb that is not native to California.
Synonyms  
Galarhoeus helioscopiusPLANTS
Tithymalus helioscopiusPLANTS
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
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.
Potential Range Plant Characteristics Location Suitability
Observations: ~68 records Add an Observation to Calflora Search for Euphorbia helioscopia
Name Status:
Accepted by: JEPS + POWO + PLANTS
Calflora Category:
angiosperm
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot
Toxicity:
Severe skin irritation from touching the sap of this plant.
Habitat:
disturbed
Communities:
weed, characteristic of disturbed places

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Additional Photos on Calflora
External links:
Jepson eFlora Taxon Page USDA Plant Profile Consortium of California Herbaria (CCH2) Integrated Taxonomic Info System (ITIS) International Plants Names Index (IPNI)
Plants of the World Online (POWO) CalPhotos (UC Berkeley) iNaturalist

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 - Taxon Report.” The Calflora Database, a non-profit organization. .

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