Euphorbia discoidalis |
Euphorbia maculata |
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sandmat, milk spurge, spotted spurge |
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Habit | Monoecious, ascending to erect annual, the stems freely-branched, 1-5 dm. tall, white-woolly below and glabrous above. | |
Leaves | Leaves opposite, short-petiolate, oblong or oblong-lanceolate, 1-3 cm. long and 4-9 mm. wide, with long, soft hairs; stipules triangular, 1 mm. long. |
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Flowers | Inflorescence of cymes terminal on the branches, the flowers tiny, monoecious, borne in involucres; staminate flowers numerous, naked, each consisting of a single stamen; pistillate flower single and terminal in the involucre; involucre obconic, 1.5 mm. long, bearing 4 glands separated by reniform appendages, white or pink, entire, 0.2-0.4 mm. long. |
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Fruits | Capsules 2 mm. long; seeds golden-brown, 1.3 mm. long, flattened and shallowly pitted between the 3 or 4 rounded, longitudinal ridges. |
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Euphorbia discoidalis |
Euphorbia maculata |
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Flowering time | June-September | |
Habitat | Disturbed soil and waste areas. | |
Distribution | Occurring on both sides of the Cascades in Washington; British Columbia to California, east across North America to the Atlantic Coast.
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Origin | Introduced from eastern North America | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |
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