Description:round cushions, usually 200–400 mm across, but occasionally up to 1 m in diamete
Habitat:alpine and subalpine fellfields and cushion vegetation
| Form of cushion | C | Hemispherical (dome shaped) cushion |
| Compactness | 1 | Compact, hard (peat-accumulating) |
| Variability | 0 | No variability |
| Root system | P | Single pivotal root |
| Woodiness | 0 | Herbaceaous |
| Thorniness | 0 | No |
| Succulence | 0 | No |
| Flowers | 0 | Flowers sessil |