Description:Grey and cushion-forming to 20 by 20cm, easily confused with those of R, mammilaris, but best distinguished by their leaf hairs
Habitat:drier mountains at altitudes ranging from 1200m-1800m in frost shattered but relatively stable rocks and screes
| Form of cushion | C_F | Intermediate beetween C & F types |
| Compactness | 1 | Compact, hard (peat-accumulating) |
| Variability | 0_1 | Intermediate |
| Root system | NA | NA |
| Woodiness | 0 | Herbaceaous |
| Thorniness | 0 | No |
| Succulence | 0 | No |
| Flowers | 0 | Flowers sessil |