[ Echinocereus polyacanthus variety densus (Regel) N.P.Taylor]

[ Echinocereus polyacanthus variety densus (Regel) N.P.Taylor]

TEST 5 444571 Echinocereus polyacanthus Engelm. / W. Curtis, Bot. Mag., ser. 2, vol. 1(): : t. 20 (1984) [C. King] — Echinocereus polyacanthus Engelm. [Cactaceae]
W. Curtis, Bot. Mag., ser. 2, vol. 1(): : t. 20 (1984) [C. King]