Euphorbia oblongata

Eggleaf spurge

Family: Euphorbiaceae · Type: perennial · Not Native

Conservation status: Cal-IPC Yes

Eggleaf spurge is a naturalized perennial herb found in northwestern California, Sierra Nevada foothills, Central Valley, San Francisco Bay Area, and Central Coast in disturbed areas at elevations below 900 meters. Flowering from May to September, this plant produces small yellow-green flowers in dense umbel-like clusters with leafy bracts. Growing with several stems 30 to 80 centimeters tall that are densely hairy, it spreads from the base with distinctive branching. Its leaves are oblong to elliptic, 4 to 6.5 centimeters long, with finely toothed edges and rounded bases, arranged alternately on the lower stem and forming a single whorl near the top. The fruit is a spheric, lobed structure 3 to 4.5 millimeters long, containing smooth brown seeds with a distinctive knob.

Habitat: Disturbed areas

Bloom period: May-Sep

Elevation: < 900 m

Bioregions: NW, SNF, GV, SnFrB, CCo

California counties: Amador, Calaveras, Tehama, Contra Costa, Santa Clara, San Mateo, Marin, Tuolumne, El Dorado, Solano, Sonoma, Yolo, Santa Cruz, San Luis Obispo, Butte, Shasta, Humboldt, Mendocino, Alameda, Sacramento, Mariposa, Siskiyou, Nevada, Placer, San Joaquin, Lake, Napa, Monterey

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.