Nice flowers, but I don't care much for the plant. The one at Mom's house is starting to look very tree-like at the base. Way to big for that little space.
OK, this one's not a flower, just cool looking.
A Santa Rita variety. Nice long spines along the top of the stems.
This one sure does put out the flowers!
Cleistocactus samaipatanus (Thanks Christer for the ID on this one!)
This was right next to the one above.