Lugar de publicación
Cact. Succ. J. [Los Angeles] 25: 34 (1953)
Referencias
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Hutchison (1953)
Hutchison, P.C. 1953. Studies of the South American Cactaceae. 2: Echinocactus humilis Phillipi. A Chilean endemic with primarily juvenile stems. Cactus and Succulent Journal (Los Angeles), 25:34-37