Photo: Echinocereus engelmannii.

Flowering plant. Organ Pipe Nat'l monument, AZ, US. Wild. 1998-03-01.
Echinocereus engelmannii (Parry ex Engelm.) Lem. Engl.: Engelmann's hedgehog cactus, strawberry hedgehog cactus. Bot. syn.: Cereus engelmannii Parry ex Engelm., Cereus munzii Parish, Echinocereus munzii (Parish) L. D. Benson
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Photo: Echinocereus engelmannii.