Description:tight, compact cushion of narrow, silvery foliage; This is perhaps the finest, and certainly the most compact species, with tiny silvery leaves and large flowers
Habitat:limestone cliffs and crevices fully exposed to the extremes of both summer sun and winter cold
| 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 |