Cleistocactus crest

The person who originally grafted this crest labeled it Cleistocactus wendlandiorum var. aureispinus. C. wendlandiorum has been reclassified as C. brookei (which is white-spined) but I have no idea what happened to the variety name - if it ever was legitimate. If you're into naming, feel free to help me out here.
But whatever the name, it's a beauty.