Synonyms
Peniocereus papillosus (Britton & Rose) U.Guzmán
Cereus viperinus F.A.C.Weber
Wilcoxia viperina var. tomentosa (Bravo) Bravo
Peniocereus tomentosus (Bravo) Buxb.
Cullmannia viperina (F.A.C.Weber) Distefano
Wilcoxia tomentosa Bravo
Wilcoxia viperina (F.A.C.Weber) Britton & Rose