Echinopsis fiebrigii Gürke in Notizbl. Königl. Bot. Gart. Berlin 4: 184. 1905
Echinopsis fiebrigii in Notizbl. Königl. Bot. Gart. Berlin 4: 184. 1905
is basionym for Echinopsis obrepanda var. fiebrigii in Kakteen And. Sukk. 25: 82. 1974
is basionym for Pseudolobivia obrepanda var. fiebrigii, Cactaceae 2: 1350. 1959