Machaerocereus gummosus Sour Pitaya Cactus ID: 1335 3153 0673 0121 [detail] Gerald and Buff Corsi © 2002 California Academy of Sciences

Machaerocereus gummosus ID: 1340 3162 2722 0023 [detail] H. Vannoy Davis © 2005 California Academy of Sciences

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