Wilcoxia viperina var. tomentosa (Bravo) Bravo in Cact. Suc. Mex. 19(2): 47. 1974
Wilcoxia viperina var. tomentosa in Cact. Suc. Mex. 19(2): 47. 1974
is new combination for Wilcoxia tomentosa in Cact. Suc. Mex. 3(2): 28–29, 32, f. 17–18. 1958
Wilcoxia viperina var. tomentosa in Cact. Suc. Mex. 19(2): 47. 1974
Taxon for this name