Echinocereus pulchellus (Mart.) Schumann [ Echinocereus pulchellus variety weinbergii (Weing.) N.P.Taylor]
Curtis, W., et al., Curtis’s Botanical Magazine, ser. 2 (1984-2021)
Bot. Mag., ser. 2

vol. 2 (1985)
t. 36 f. 1
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