Gymnocalycium cardenasianum var. pseudocrassispinum Milt variety synonym

Gymnocalycium spegazzinii subsp. armatum (F.Ritter) Halda & Sorma subspecies synonym

Gymnocalycium spegazzinii var. spegazzinii variety accepted

Gymnocalycium spegazzinii subsp. spegazzinii subspecies accepted

Gymnocalycium cardenasianum F.Ritter species synonym

Echinocactus loricatus Speg. species heterotypic synonym

Gymnocalycium spegazzinii f. unguispinum Slaba form synonym

Gymnocalycium spegazzinii var. tortispinum Y.Itô, 1981 variety accepted

Gymnocalycium spegazzinii subsp. sarkae Halda & Milt subspecies synonym

Gymnocalycium spegazzinii var. punillense H.Till & W.Till variety synonym

Gymnocalycium spegazzinii subsp. cardenasianum (F.Ritter) R.Kiesling & Metzing subspecies accepted

Gymnocalycium spegazzinii var. armatum (F.Ritter) Slaba & Sorma variety synonym

Gymnocalycium loricatum Speg. species synonym

Gymnocalycium horizonthalonium Fric ex Kreuz. species synonym

Gymnocalycium cardenasianum f. armatum (F.Ritter) H.Till & Amerh. form synonym

Gymnocalycium armatum F.Ritter species synonym

Gymnocalycium cardenasianum subsp. armatum (F.Ritter) V.Gapon & Vikulov subspecies synonym

Gymnocalycium cardenasianum subsp. pseudoarmatum V.Gapon & Vikulov subspecies synonym

Gymnocalycium horizonthalonium Fric species homotypic synonym