Ferocactus cylindraceus California Barrel Cactus ID: 0000 0000 0305 0562 [detail] © 2005 Michael W. Tuma	Ferocactus cylindraceus California Barrel Cactus ID: 0000 0000 0205 0281 [detail] © 2005 Brent Miller	Ferocactus cylindraceus California Barrel Cactus ID: 0000 0000 0205 0282 [detail] © 2005 Brent Miller	Ferocactus cylindraceus California Barrel Cactus ID: 6666 6666 0313 0001 [detail] Gerald and Buff Corsi © 2013 California Academy of Sciences
Ferocactus cylindraceus ssp. cylindraceus California Barrel Cactus ID: 6666 6666 0213 0050 [detail] Gerald and Buff Corsi © 2013 California Academy of Sciences

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