Original Description:The Cactaceae 2
p.91 - Britton & Rose (1920)
Large plant 3 to 10 meters high with a short, thick, woody trunk 2 to 5 dm in diameter, becoming smooth; joints bright green when young, grayish afterwards; ribs 7 to 11; spines acicular, 2 to 4 cm long, brownish when young; flowers large, white, 10 to 11 cm long; tube proper 2 cm long with walls 1 cm thick or more; areoles on flower-tube and ovary closely set, large, bearing brown wool and yellow bristles; fruit large, 10 cm long or more, covered with yellow spines.
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