Original Description:The Cactaceae 4
p.57 - Britton & Rose (1920)
Plant growing in clumps and resembling a small species of Echinocereus; old plants bearing naked corky tubercles; radial spines about 20, spreading, slender, white; central spines several, stout, with black or with brownish tips, 2 cm long; flowers greenish with a central stripe on outside, 2.5 cm long; filaments, style, and stigma-lobes green; fruit red, globose to short-obling, 6 to 12 mm long; seeds black, pitted, globose, 1 mm in diameter.
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