Description:Plants perennial, forming mats or low cushions, with elongate rhizomes
Habitat:Mountain rills and screes; 2500-4000 m (USA); Montane wet places, mossy frozen areas (Russia)
| Form of cushion | F_M | Intermediate beetween F & M types |
| Compactness | 0 | Hollow, with canopy gaps |
| Variability | 0_1 | Intermediate |
| Root system | R | Rhizomes |
| Woodiness | NA | NA |
| Thorniness | 0 | No |
| Succulence | 0 | No |
| Flowers | 1 | Short peduncle |