Sulcorebutia pulchra var. longispina Slaba & Šorma in Kaktusy (Brno) 43(1): 13. 2007
Sulcorebutia pulchra var. longispina in Kaktusy (Brno) 43(1): 13. 2007
is basionym for Sulcorebutia callichroma var. longispina in Succulenta (Netherlands) 91: 64. 2012