Echinocactus pilosus f. stainesii (Salm-Dyck) Voss, Vilm. Blumengärtn., ed. 3, 1: 372. 1894
Echinocactus pilosus f. stainesii, Vilm. Blumengärtn., ed. 3, 1: 372. 1894
is new combination for Echinocactus pilosus var. stainesii, Cact. Hort. Dyck., ed. 1849: 149. 1850