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Found this in a local hardware store.





I assume Echinocereus going from the spine form and fluffy flower buds, but I'm not real hot on them.

It's definitely Echinocereus, but a lot of species have those pectinate spines. It superficially resembles something in the reichanbachii group. The flowers will help you narrow it down considerably.

Echinocereus pamanesiorum?