Echinocactus polycephalus
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Echinocactus polycephalus Engelm. & J.M.Bigelow
Engish:
polycephalus,-a,-um;
Taxonomic status: Accepted

homotypic synonyms:
Emorycactus polycephalus (Engelm. & J.M.Bigelow) Doweld;

protologue: Pacif. Railr. Rep. Parke, Bot. 4: 31 (1857)
URL protologue: https://archive.org/stream/#page/31/mode/2up

2 369469 Echinocactus polycephalus Engelm. & J.M.Bigelow
T. Meehan, Native Fl. Ferns U.S., vol. 2 : p. 129, t. 33 (1878-1879)
2 369469 Echinocactus polycephalus Engelm. & J.M.Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 3 (1853-1856) [P. Roetter]

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