Echinocactus hamatacanthus var. longihamatus (Galeotti ex Pfeiff.) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 365. 1896
Echinocactus hamatacanthus var. longihamatus in Contr. U.S. Natl. Herb. 3: 365. 1896
is new combination for Echinocactus longihamatus, Abbild. Beschr. Cact. 2: pl. 16. 1848