Echinocactus polycephalus Engelm. & J.M.Bigelow
Torrey, J., Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean in 1853-6 (1856)
Pacif. Railr. Rep.

vol. 4 (1853-1856)
t. 3
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name recognized (= cited name):
369469 Echinocactus polycephalus Engelm. & J.M.Bigelow
drawing: P. Roetter
family: Cactaceae
subfamily: Cactoideae
tribe: Cacteae
epithet: polycephalus,-a,-um

Illustration contributed by:
San Francisco Public Library, San Francisco, California, U.S.A.
link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=71770
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homotypic synonyms:
Emorycactus polycephalus (Engelm. & J.M.Bigelow) Doweld;
no full size  illustration available (3a)