Hey folks, I bought this cactus a while ago from a private seller but at the time I didn't think to ask where it was sourced. Looking for any advice to see if it's an active species. Any ideas would be much appreciated.
Some measurements I've taken to help ID:
areoles: 3cm apart, prominent V shaped ridge above each, 3-7 spines in each.
spines: base yellow-green and tips reddish brown when young, up to 4cm long
body: 5-7 ribs