Euphorbia hexagona |
Chamaesyce serpillifolia(synonym of Euphorbia serpillifolia) |
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thyme-leaved spurge, thymeleaf sandmat |
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Habit | Plants annual; stems prostrate to ascending, 5–40 cm, glabrous, sometimes glaucous; taprooted. | |
Leaves | oblanceolate to oblong, 3–15 mm, occasionally with a central red spot; margins entire to shallowly toothed; tips rounded; surfaces glabrous; petioles 0.5–1.5 mm; stipules slender and entire to linear and dissected, 1–1.5 mm. |
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Inflorescences | involucres 0.5–1 mm, glabrous; glands elliptic; gland appendages white. |
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Fruits | spherical, 1–2 mm, glabrous. |
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Seeds | ovoid, 0.9–1.3 mm; smooth to wrinkled. |
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Euphorbia hexagona |
Chamaesyce serpillifolia |
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Distribution | ||
Discussion | Usually dry places but sometimes in wet areas, roadsides, disturbed areas. Flowering Jun–Sep. 0–1900 m. BR, BW, Casc, Col, ECas, Lava, Owy, Sisk, WV. CA, ID, NV, WA; southern Canada, most of US except southeast and parts of northeast, Mexico. Native. In California, some plants of this species have hairy stems, involucres, and fruits. These plants are accepted by some authorities as C. s. ssp. hirtula (ours, in turn, would be C. s. ssp. serpillifolia). Given the already small morphological differences between our species of Chamaesyce, we have chosen not to recognize the subspecies. |
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Source | Flora of Oregon, volume 2, page 643 Stephen Meyers |
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Sibling taxa | ||
Synonyms | Chamaesyce serpillifolia ssp. serpillifolia, Euphorbia serpillifolia, Euphorbia serpillifolia ssp. serpillifolia | |
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