Is it a Mammillaria and, if so, what species?

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Hello! I recently purchased this cactus from the cactus shop at the Living Desert in Palm Desert, CA. The clerk said that it was a Mammillaria, but she wasn't sure which species. It's about three inches in height.

I agree that it does appear to be a Mammillaria, but it could also be a Coryphantha or an Escobaria. At any rate, does anyone here have any good idea as to which species this might be?

Thanks so much!

Wayne

Mammillaria spinosissima ssp. spinosissima 'Un pico'

gnet wrote:

Mammillaria spinosissima ssp. spinosissima 'Un pico'

Yes, that looks like it might be it! Thank you!

Wayne

Yes, M. spinosisiima - Kultivar "Un pico"