Euphorbia dentata |
Euphorbia cyparissias |
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cypress spurge |
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Habit | Glabrous perennial, the stems 1.5-3 dm. tall, simple below but freely branched above. | |
Leaves | Leaves alternate, the lower ones linear, 1-3 cm. long and 1-3 mm. broad; leaves of the axillary upper branches more numerous and narrower. |
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Flowers | Inflorescence a many-rayed umbel, the floral bracts broadly ovate-cordate, 12-16 mm. long; flowers tiny, monoecious, borne in involucres; staminate flowers numerous, naked, each consisting of a single stamen; pistillate flower single and terminal in the involucre; involucres about 3 mm. long, bearing 4 reddish-green, horned glands. |
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Fruits | Capsules finely warty, separating into three 1-seeded segments. |
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Euphorbia dentata |
Euphorbia cyparissias |
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Flowering time | May-August | |
Habitat | Roadsides, fields, ditches, wastelots, and other disturbed areas where often escaped from cultivation. | |
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.
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Origin | Introduced from Eurasia | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |
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