Original Description:The Cactaceae 2
p.125 - Britton & Rose (1920)
A low, weak plant, although erect at first, a meter high or less, afterward elongating and arching; branches few, usually sharply 4-angled, 1 to 3 cm broad, bluish white, the margins only slightly undulate; areoles 2 to 3 cm apart, small, brown-felted; spines 2 to 6, acicular, brown, swollen at base, unequal, the longest 2 cm long; flowers and fruit unknown.
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