Echinopsis pentlandii (Hook.) Salm-Dyck ex A.Dietr. [ Lobivia pentlandii (Hook.) Britton & Rose]
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Echinopsis pentlandii (Hook.) Salm-Dyck ex A.Dietr. [ Echinocactus pentlandii Hook.] [Cactaceae]
N.L. Britton, J.N. Rose, Cact., vol. 3 : t. 5 (1922) [M.E. Eaton]