Difference between revisions of "Euphorbia theriaca var. spurca"
Wrightia 5: 138. 1975.
Synonyms: Chamaesyce spurca (M. C. Johnston) B. L. Turner C. theriaca var. spurca (M. C. Johnston) Mayfield
Treatment appears in FNA Volume 12. Treatment on page 290.
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Latest revision as of 20:16, 5 November 2020
Stems 5–25 cm. Leaf blade 3–7.1 × 1–3.5 mm. Cyathia usually solitary at distal nodes, rarely clustered on short, axillary branches; peduncle 0.6–1.3 mm. Involucre turbinate-campanulate to hemispheric, 1–1.8 × 0.9–1.4 mm; glands short-stipitate, subcircular, 0.2–0.5 × 0.2–0.5 mm; appendages present, occasionally rudimentary. Staminate flowers 20–36. Capsules 1.4–1.6 × 1.5–1.7 mm. Seeds with 3–4(–5) prominent transverse ridges.
Phenology: Flowering and fruiting late winter–late fall.
Habitat: Desert scrub, limestone or igneous soils.
Elevation: 700–1500 m.
Distribution
N.Mex., Tex., Mexico (Chihuahua, Coahuila).
Discussion
Variety spurca is partly sympatric with var. theriaca in Brewster and Presidio counties but extends further west into Hudspeth and El Paso counties as well as into adjacent New Mexico.
Selected References
None.
Lower Taxa
None.