There is no central spine baja//big ones are at the bottom of the areole, upper ones are at the top . Arranged in a cross with a V of 2 upper latteral ones. Description says(at least for the subspc karwinskiana that it has 6 spines). What is odd is that the lower spine is very long, closer to subpsc nejapensis
https://www.cactuspro.com/cach...
https://i.pinimg.com/originals...
there is also the matter of hairs..
