Echinocactus longihamatus var. brevispinus Engelm. in Proc. Amer. Acad. Arts 3: 274. 1856
Echinocactus longihamatus var. brevispinus in Proc. Amer. Acad. Arts 3: 274. 1856
is basionym for Echinocactus longihamatus f. brevispinus, Handb. Kakteenkult.: 160. 1907
is basionym for Echinocactus hamatacanthus var. brevispinus in Contr. U.S. Natl. Herb. 3: 366. 1896