Echinocactus polycephalus Cottontop Cactus ID: 0000 0000 0503 0905 [detail] © 2003 Michelle Cloud-Hughes
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Echinocactus polycephalus Cottontop Cactus ID: 0000 0000 1003 0457 [detail] © 2003 Joseph Dougherty/ecology.org
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Echinocactus polycephalus Biznaga-tonel Amacollada ID: 1073 3283 3182 0013 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences
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Echinocactus polycephalus Cottontop Cactus ID: 0000 0000 1003 0458 [detail] © 2003 Joseph Dougherty/ecology.org
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Echinocactus polycephalus Biznaga-tonel Amacollada ID: 1073 3283 3182 0014 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences
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Echinocactus polycephalus Many-headed Barrel ID: 0000 0000 1004 0489 [detail] © 2004 Heath McAllister
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Echinocactus polycephalus Many-headed Barrel ID: 0000 0000 1004 0490 [detail] © 2004 Heath McAllister
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Echinocactus polycephalus Biznaga-tonel Amacollada ID: 0000 0000 1004 0785 [detail] © 2004 James M. Andre
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Echinocactus polycephalus Biznaga-tonel Amacollada ID: 0000 0000 1004 0849 [detail] © 2004 James M. Andre
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Echinocactus polycephalus Cottontop Barrel Cactus ID: 6666 6666 0117 0098 [detail] Gerald and Buff Corsi © 2017 California Academy of Sciences
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Echinocactus polycephalus Cottontop Barrel Cactus ID: 6666 6666 0117 0099 [detail] Gerald and Buff Corsi © 2017 California Academy of Sciences
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Echinocactus polycephalus Cottontop Barrel Cactus ID: 6666 6666 1217 0116 [detail] Gerald and Buff Corsi © 2017 California Academy of Sciences
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Echinocactus polycephalus Cottontop Barrel Cactus ID: 0000 0000 1122 0856 [detail] © 2022 Wynn Anderson
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Echinocactus polycephalus var. polycephalus Mojave Mound ID: 1073 3283 3182 0010 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences
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Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 1073 3283 3182 0012 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences
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Echinocactus polycephalus var. polycephalus Clustered Barrel Cactus ID: 0000 0000 1002 0580 [detail] © 2002 Hartmut Wisch
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