Sulcorebutia tiraquensis var. laui (Brederoo & Donald) Gertel & J.de Vries in Cactus & Co. 11(3): 158. 2007
Sulcorebutia tiraquensis var. laui in Cactus & Co. 11(3): 158. 2007
is new combination for Sulcorebutia vizcarrae var. laui in Succulenta (Netherlands) 65(3): 52. 1986