Names and synonyms
Thelocactus multicephalus Halda & Panarotto, Acta Mus. Richnov. Sect. natur. 5: 40 (1998).
Thelocactus rinconensis ssp. multicephalus (Halda & Panarotto) Luethy, Kakt. and Sukk. 50: 80 (1999).