Gymnocalycium kurtzianum (Gürke) Britton & Rose, Cactaceae 3: 163. 1922
Gymnocalycium kurtzianum, Cactaceae 3: 163. 1922
is new combination for Echinocactus kurtzianus in Monatsschr. Kakteenk. 16: 55. 1906
Gymnocalycium kurtzianum, Cactaceae 3: 163. 1922