Gymnocalycium gibbosum (Haw.) Pfeiff. ex Mittler [ Cactus gibbosus Haw.]
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Gymnocalycium gibbosum (Haw.) Pfeiff. ex Mittler [ Cactus gibbosus Haw.] [Cactaceae]
S.T. Edwards, Bot. Reg., vol. 2 : t. 137 (1816) [S. Edwards]