Pretty Hedgehog
That’s what the name means in latin. Echinocereus pulchellus. And it is! It is a pretty hedgehog! This is one of those cacti that will grow better indoor in a sunny window.
What else can I tell you? It’s from Mexico up to 6600ft. It’s generally solitary. Dozens of flowers every year. Under that flower you can barely see that the spines are short and white, but they become darker with age, a yellowish brown color. You can that the ribs are well spaced and the spines are short – that’s a sure indicator that this is a cactus that will shrink into the ground when cold and dry.