This young specimen has white spines and wool obscuring the green body. Some individuals are not covered quite so completely.
Flowers have the appearance of antique paper, with the outer petals a darker pink, fading to pale pink for the inner petals.
Eriosyce paucicostata ssp floccosa are noted for long hairs under the flowers. Full grown plants look somewhat different, but the plant pictured in habitat is just as completely covered by long spines, wool, and hairs. (This photo is at cactushabitat.com.)