I found this at Home Depot, stuck way in the back behind other plants, away from other cactus. It is 4.5" wide and only about 1.5" tall. As you can see it has fuzzy/hairy flower buds like Echinopsis/Lobivia. Any ideas as to what it may be? Thanks,

Dan

Lincoln, NE USDA 5

Here is a link that might be useful: Unknown HD cactus