brunescens (1)
Aylostera, (Digitorebutia)
R. brunescens Rausch 1972 - Fearn & Pearcy 1981: (genus Rebutia, section III. Digitorebutia)
R. brunescens Rausch 1972 - Šída 2004: (genus Rebutia, subgen. Rebutia, sectio 2. Aylostera, series 10. Fulviseta, species 2.)
A. brunescens (Rausch) Mosti & Papini 2011 - Mosti & Papini 2011: spec.5, Rebutia I (genus Aylostera, subg. Aylostera)
A. pygmaea (sensu R.E.Fries) - Ritz & al. 2016: spec.8 (genus Aylostera, clade Digitorebutia)