Euphorbiaceae
Spurge Family
3 genera
14 species
1 subspecies and varieties
14 species
1 subspecies and varieties
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Croton setigerus – doveweed, turkey mullein, fish poison
Distribution: Occurring east of the Cascades crest in Washington; Washington to Baja California, east to western Idaho and Nevada.
Habitat: Dry, often sandy or rocky areas.
Origin: Native
Flowers: June-August
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; Washington to Baja California, east to western Idaho and Nevada.
Habitat: Dry, often sandy or rocky areas.
Origin: Native
Flowers: June-August
Growth Duration: Annual
Euphorbia agraria – urban spurge
Distribution: Occurring east of the Cascades crest in eastern Washington; also in Montana, and scattered locations eastward to eastern North America.
Habitat: Fields and grasslands, where disturbed.
Origin: Introduced from Europe
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in eastern Washington; also in Montana, and scattered locations eastward to eastern North America.
Habitat: Fields and grasslands, where disturbed.
Origin: Introduced from Europe
Flowers: June-August
Growth Duration: Perennial
Euphorbia cyparissias – cypress 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
Growth Duration: Perennial
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
Growth Duration: Perennial
Euphorbia glyptosperma – rib seed sandmat, corrugate seeded spurge, ridge seeded spurge
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to across most of North America to the Atlantic Coast.
Habitat: Dry, sandy soil, from the plains to the lower mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to across most of North America to the Atlantic Coast.
Habitat: Dry, sandy soil, from the plains to the lower mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Euphorbia helioscopia – summer spurge, sun spurge, wart spurge, wartweed
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, east to the northern Rocky Mountains and northern Great Plains, Texas, and eastern North America.
Habitat: Weed of cultivated areas and abondoned gardens.
Origin: Introduced from Eurasia
Flowers: April-July
Growth Duration: Annual
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, east to the northern Rocky Mountains and northern Great Plains, Texas, and eastern North America.
Habitat: Weed of cultivated areas and abondoned gardens.
Origin: Introduced from Eurasia
Flowers: April-July
Growth Duration: Annual
Euphorbia lathyris – mole plant, gopher plant, caper spurge
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California east to Idaho, Montana, Arizona, and Texas; widely distributed in eastern North America.
Habitat: Disturbed soil and wasteland.
Origin: Introduced from Eurasia
Flowers: April-May
Growth Duration: Annual
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California east to Idaho, Montana, Arizona, and Texas; widely distributed in eastern North America.
Habitat: Disturbed soil and wasteland.
Origin: Introduced from Eurasia
Flowers: April-May
Growth Duration: Annual
Euphorbia maculata – sandmat, milk spurge, spotted spurge
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Disturbed soil and waste areas.
Origin: Introduced from eastern North America
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Disturbed soil and waste areas.
Origin: Introduced from eastern North America
Flowers: June-September
Growth Duration: Annual
Euphorbia myrsinites – broad leaved glaucous spurge, myrtle spurge
Distribution: Occurring chiefly east of the Cascades in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Disturbed areas often arid areas or dry soils.
Origin: Introduced from Mediterranean
Flowers: April-July
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Disturbed areas often arid areas or dry soils.
Origin: Introduced from Mediterranean
Flowers: April-July
Growth Duration: Perennial
Euphorbia oblongata – balkan spurge, egg-leaf spurge
Distribution: Occurring west of the Cascades crest in lowland western Washington; southwestern British Columbia to California.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed, open areas.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland western Washington; southwestern British Columbia to California.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed, open areas.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Perennial
Euphorbia peplus – petty spurge
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Weed of disturbed ground.
Origin: Introduced from Europe
Flowers: May-November
Growth Duration: Annual
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Weed of disturbed ground.
Origin: Introduced from Europe
Flowers: May-November
Growth Duration: Annual
Euphorbia serpillifolia – thyme-leaved spurge
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Baja California, east to the Great Plains, Great Lakes region, and eastern North America.
Habitat: Dry ground from the plains to the lower mountains.
Origin: Native
Flowers: May-September
Growth Duration: Annual
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Baja California, east to the Great Plains, Great Lakes region, and eastern North America.
Habitat: Dry ground from the plains to the lower mountains.
Origin: Native
Flowers: May-September
Growth Duration: Annual
Euphorbia serrulata – upright spurge
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Washington.
Habitat: Disturbed areas at low elevations.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Washington.
Habitat: Disturbed areas at low elevations.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Annual
Euphorbia spathulata – reticulate seeded spurge, spatulate leaved spurge, warty spurge
Distribution: Occurring east of the Cascades crest in Washington; eastern Washington to California, east across North America to the Atlantic Coast.
Habitat: Moist open areas, prairies, and woodlands.
Origin: Native
Flowers: May-July
Growth Duration: Annual, Perennial
Distribution: Occurring east of the Cascades crest in Washington; eastern Washington to California, east across North America to the Atlantic Coast.
Habitat: Moist open areas, prairies, and woodlands.
Origin: Native
Flowers: May-July
Growth Duration: Annual, Perennial
Euphorbia virgata – wolf's milk, leafy spurge
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Noxious weed of disturbed soils
Origin: Introduced from Eurasia
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Noxious weed of disturbed soils
Origin: Introduced from Eurasia
Flowers: May-June
Growth Duration: Perennial
