Gymnocalycium cardenasianum var. pseudocrassispinum Milt variety synonym

Gymnocalycium cardenasianum subsp. armatum (F.Ritter) V.Gapon & Vikulov subspecies 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 spegazzinii var. spegazzinii variety accepted

Gymnocalycium spegazzinii subsp. spegazzinii subspecies accepted

Gymnocalycium cardenasianum F.Ritter species synonym

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

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

Gymnocalycium horizonthalonium Fric species homotypic synonym