Синонимы: | = Echinocactus droegeanus Hildm. ex Schumann = Echinocactus fossulatus Scheidw. = Echinocactus hexaedrophorus var. droegeanus R. Meyer = Echinocactus hexaedrophorus var. fossulatus Salm-Dyck = Echinocactus hexaedrophorus var. labouretianus Schumann = Echinocactus hexaedrophorus var. major Quehl = Echinocactus hexaedrophorus var. roseus Lemaire ex Labouret = Echinocactus hexaedrophorus var. subcostatus Salm-Dyck = Thelocactus fossulatus Br. & R. = Thelocactus hexaedrophorus subsp. francii Halda & Sladkovsky = Thelocactus hexaedrophorus subsp. jarmilae Halda & Chvastek = Thelocactus hexaedrophorus subsp. kvetae Chvastek & Halda = Thelocactus hexaedrophorus subsp. lloydii (Br. & R.) N. P. Taylor = Thelocactus hexaedrophorus var. decipiens A. Berger = Thelocactus hexaedrophorus var. fossulatus Backeb. = Thelocactus hexaedrophorus var. labouretianus A. Berger = Thelocactus hexaedrophorus var. lloydii (Br. & R.) Kladiwa & Fittkau = Thelocactus hexaedrophorus var. major A. Berger = Thelocactus lloydii Britton & Rose
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