Description:Firmly mat to hummock-forming up to 30cm across, in the wild often almost stone-hard
Habitat:at the limits of vegetation on stony tops, stable screes and between rocks at 1500-4300m depending upon latitude
| Form of cushion | C | Hemispherical (dome shaped) cushion |
| Compactness | 1 | Compact, hard (peat-accumulating) |
| Variability | 0 | No variability |
| Root system | NA | NA |
| Woodiness | NA | NA |
| Thorniness | 0 | No |
| Succulence | 0 | No |
| Flowers | 0 | Flowers sessil |