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Opuntia cylindrica, DC. (Cereus cylindricus, Haw.). A moderately branched upright plant, 10-12 ft. high, with main sts. 2-2½ in. diam., new growth dark green, the comparatively long (½ in.) Lvs. persisting for some time: areoles depressed, with a little white wool, a few white bristles and some long white hairs; spines at first 2-3, erect, rather stiff, ½ in. or less long, at first whitish yellow, later grayish: fls. rose-red, 2-2½ in. wide from end of joints: fr. pyriform, 2-2½ in. long, yellowish green, somewhat spiny. Chile. Var. cristata is offered in cult.
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