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FNA | Family List | FNA Vol. 4 | Cactaceae | Cylindropuntia

20a. Cylindropuntia acanthocarpa (Engelmann & J. M. Bigelow) F. M. Knuth var. acanthocarpa

Shrubs or small trees, with few branches, usually at acute angles. Stem segments green, 6-17.5 cm; tubercles broad, rounded, oval, 1.5-2.2 cm. Spines 15-25 per areole, brown, aging gray, not baggy sheathed; major 5-7 abaxial spines deflexed, sub-parallel. Flowers: inner tepals yellow-green, sometimes reddish orange tinged. Fruits densely spiny; areoles 16-26.

Flowering spring (May). Mojave Desert, edges of juniper woodlands, rocky slopes; 1100-1200 m; Ariz., Utah.


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