Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 8120 3181 4573 0118 [detail] Charles Webber © 1998 California Academy of Sciences	Echinocactus polycephalus var. polycephalus Niggerheads ID: 5208 1611 2417 0034 [detail] © 1995 Saint Mary's College of California	Echinocactus polycephalus var. polycephalus Clustered Barrel Cactus ID: 0000 0000 1002 0579 [detail] © 2002 Hartmut Wisch	Echinocactus polycephalus var. polycephalus Niggerheads ID: 5208 1611 2417 0033 [detail] © 1995 Saint Mary's College of California
Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 8253 3202 3491 0092 [detail] Charles Webber © 1999 California Academy of Sciences	Echinocactus polycephalus var. polycephalus Niggerheads ID: 8120 3181 4573 0120 [detail] Charles Webber © 1998 California Academy of Sciences	Echinocactus polycephalus var. polycephalus Niggerheads ID: 8253 3202 3490 0010 [detail] Gerald and Buff Corsi © 1999 California Academy of Sciences	Echinocactus polycephalus var. polycephalus Mojave Mound ID: 1073 3283 3182 0010 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences
Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 1073 3283 3182 0012 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences	Echinocactus polycephalus var. polycephalus Clustered Barrel Cactus ID: 0000 0000 1002 0580 [detail] © 2002 Hartmut Wisch	Echinocactus polycephalus var. polycephalus Niggerheads ID: 8120 3181 4573 0119 [detail] Charles Webber © 1998 California Academy of Sciences	Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 8253 3202 4143 0141 [detail] Albert P. Bekker © 1999 California Academy of Sciences
Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 0000 0000 0404 0694 [detail] © 2004 Michelle Cloud-Hughes	Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 0000 0000 0206 0385 [detail] © 2006 Chris Wagner, SBNF	Echinocactus polycephalus var. polycephalus ID: 3333 3333 1007 0086 [detail] © University and Jepson Herbaria	Echinocactus polycephalus var. polycephalus ID: 0000 0000 1207 1593 [detail] © 2007 Jason E. Willand
Echinocactus polycephalus var. polycephalus ID: 0000 0000 1207 1592 [detail] © 2007 Jason E. Willand	Echinocactus polycephalus var. polycephalus Cottontop Cactus ID: 0000 0000 0209 0206 [detail] © 2009 Keir Morse

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