Euphorbia radians |
Euphorbia helioscopia |
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mad woman's milk, summer spurge, sun spurge, wart spurge, wartweed |
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Habit | Somewhat fleshy annual, the upright stem 2-5 dm. tall, simple or occasionally branched below, umbellately branched near the top, nearly glabrous below but with dense, soft hairs above. | |
Leaves | Lower cauline leaves alternate, oblanceolate, narrowed to the base, 1-3 cm. long, finely serrate-dentate; floral leaves opposite or whorled, finely toothed. |
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Flowers | Flowers naked in obconic involucres, these bearing 4 greenish-yellow glands alternate with horn-less lobes; staminate flowers numerous, included in the involucre, represented by a single stamen; pistillate flower single, protruded from the involucre. |
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Fruits | Capsule 3-celled, smooth. |
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Euphorbia radians |
Euphorbia helioscopia |
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Flowering time | April-July | |
Habitat | Weed of cultivated areas and abondoned gardens. | |
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.
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Origin | Introduced from Eurasia | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |
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