Euphorbia glyptosperma |
Euphorbia corollata |
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rib seed sandmat, corrugate seeded spurge, ridge seeded spurge |
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Habit | Monoecious, glabrous annuals with prostrate, freely-branching stems 0.5-4 dm. long. | |
Leaves | Leaves opposite, obliquely lanceolate to oblong, 5-15 mm. long, entire or with fine, rounded serrations; stipules mostly linear, 1 mm. long. |
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Flowers | Flowers tiny, monoecious, borne in axillary involucres; staminate flowers numerous, naked, each consisting of a single stamen; pistillate flower single and terminal in the involucre; involucre bearing 4 pinkish glands with whitish appendages, a fifth gland represented by a short, fringed lobe. |
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Fruits | Capsules smooth, 1.5 mm. long; seeds 1.2 mm. long, grayish, prismatic, coarsely wrinkled. |
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Euphorbia glyptosperma |
Euphorbia corollata |
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Flowering time | June-September | |
Habitat | Dry, sandy soil, from the plains to the lower mountains. | |
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.
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Origin | Native | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |
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