Original Description:The Cactaceae 1
p.49 - Britton & Rose (1920)
Stems 1 to 3 meters high, forming thickets in open woods and waste grounds; ultimate joints horizontal, 5 to 10cm long, much thicker than in O. leptocaulis, with short, elevated tubercles; areoles large, bearing white wool and a few long caducous hairs; spines 1 to 3, porrect, acicular, 2 to 3 cm long, covered with thin, brown papery sheaths; glochids dark brown; leaves small, 1 to 2 mm long, acute; flowers not known; fruit red, 1.3 to 2 cm long, usually naked but sometimes bearing short spines from the upper areoles, so far known always sterile.
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