Jack Dykinga / Arizona Barrel Cactus (Ferocactus wislizenii) flower in full bloom amid the cactus spines, Saguaro NP, Arizona, USA
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Daniel Heuclin / Arizona Barrel Cactus (Ferocactus wislizenii) in flower. Foothills of Santa Catalina Mountains, Arizona, September.
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Daniel Heuclin / Arizona Barrel Cactus (Ferocactus wislizenii) flowers. Foothills of Santa Catalina Mountains, Arizona, September.
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John Cancalosi / Arizona / Fishhook barrel cactus (Ferocactus wislizenii) with fruit in snow after desert snow storm, Sonoran Desert, Arizona, USA
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John Cancalosi / Arizona / Fishhook barrel cactus (Ferocactus wislizenii) with fruit in snow after desert snow storm, with Prickly pear cactus (Oppuntia spp) in background, Sonoran Desert, Arizona, USA
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John Cancalosi / Fishhook / Arizona barrel cactus (Ferocactus wislizenii) with fruit in snow after desert snow storm with Prickly pear cactus (Opuntia sp) in background, Sonoran Desert, Arizona, USA