Difference between revisions of "Euphorbia theriaca var. theriaca"
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Revision as of 19:50, 16 December 2019
Stems 5–30 cm. Leaf blade 2–5.5 × 1–3.5 mm. Cyathia solitary at distal nodes of stem; peduncle 0.3–0.7 mm. Involucre usually turbinate-campanulate, occasionally suburceolate, 1.1–1.5 × 0.9–1.3 mm; glands sessile, subcircular to slightly elliptic, 0.2–0.5 × 0.3–0.7 mm; appendages absent. Staminate flowers 15–36. Capsules 1.1–1.6 × 1.5–1.8 mm. Seeds with (2–)3(–4) prominent transverse ridges.
Phenology: Flowering and fruiting summer–late fall.
Habitat: Desert scrub, mostly in calcareous soils.
Elevation: 600–1300 m.
Distribution
Tex., Mexico (Chihuahua, Coahuila).
Discussion
Variety theriaca occurs in Brewster and Presidio counties in trans-Pecos Texas.
Selected References
None.
Lower Taxa
None.