Found by Walter Rausch north-east of Culpina and Inca Huasi, Sud Cinti, Chuquisaca, Bolivia at an altitude of 3200m.

Found by Walter Rausch at La Cueva, Sud Cinti, Bolivia.

Found by Alfred Lau east of Mina Asientos, near the border between Cochabamba and Chuquisaca, Bolivia, at an altitude of

Originally named Rebutia pilosa N.N., now thought to be a form of Aylostera fiebrigii. Found by Karel Kníže at Las

Originally named Rebutia aureispina N.N., now thought to be a form of Aylostera fiebrigii. Found by Karel Kníže at Junacas,

Found by Friedrich Ritter near Culpina, Sud Cinti, Chuquisaca, Bolivia.

The type plant for this species, found by Friedrich Ritter near Padcaya, Tarija, Bolivia.

Found by Ralf Hillmann at Canaletas, Tarija, Bolivia at an altitude of 2150m.

Found by Ralf Hillmann at Chilla Jara, Nor Cinti, Chuquisaca, Bolivia, at an altitude of 3050m.

Found by Ralph Martin on the road between Iscayachi and San Antonio, Bolivia, at an altitude of 3500m.

Found by Vaslav Šeda at Abra de Sama, Tarija, Bolivia, at an altitude of 3850m.

Found by Ralf Hillmann at Mal Paso, Potosi, Bolivia, at an altitude of 3950m.