It was formerly included in Rebutia, but molecular phylogenetic evidence suggested that it was distinct from that genus.

As of December 2024[update], it was treated as separate genus by Plants of the World Online,[1] and recognized as an alternative generic name in the third edition of the CITES Cactaceae Checklist.

[4] Rebutia I (R. pseudodeminuta, R. fiebrigii, R. deminuta, R. pygmaea, R. steinmannii and R. einsteinii) (now included in Aylostera) Other genera Browningia hertingiana Browningia candelaris Rebutia II (R. minuscula and R. padcayensis) (Rebutia sensu stricto) Sulcorebutia, Weingartia and Cintia Species formerly classified as Weingartia, Sulcorebutia and Cintia show a close relationship to each other.

[4][5] As of December 2024[update], Sulcorebutia and Cintia are included in Weingartia by Plants of the World Online.

[1] As of December 2024[update], the following species were accepted by Plants of the World Online]:[1] Andes mountains of central and south Bolivia and northwest Argentina at elevations of 1600 – 3600 m.[citation needed]