Spurge Family
3 genera
19 species
2 subspecies and varieties
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Croton setigerusdoveweed, turkey mullein, fish poison
Origin: Native
Euphorbia agrariaurban spurge
Origin: Introduced
Euphorbia amygdaloides
Origin: Introduced
Euphorbia characiasMediterranean spurge
Distribution: Known from scattered counties in lowland western Washington; not reported as occurring elsewhere in North America.
Habitat: Open slopes, rock faces, disturbed open areas.
Origin: Introduced
Flowers: June-July
Euphorbia cyparissiascypress spurge
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed areas where often escaped from cultivation.
Origin: Introduced from Eurasia
Flowers: May-August
Euphorbia epithymoides
Origin: Introduced
Euphorbia glyptospermarib seed sandmat, corrugate seeded spurge, ridge seeded spurge
Distribution: Chiefly east of the Cascades in Washington; British Columbia south to California, east to Maine and Texas.
Habitat: Dry, sandy soil, from the plains to the lower mountains.
Origin: Native
Flowers: June-September
Euphorbia helioscopiamad woman's milk, summer spurge, sun spurge, wart spurge, wartweed
Distribution: Introduced chiefly west of the Cascades in Washington; widely distributed throughout much of North America.
Habitat: Weed of cultivated areas and abondoned gardens.
Origin: Introduced from Eurasia
Flowers: April-July