Description:Caespitose or pulvinate, taprooted perennial (rare plants); pulvinate to dendroid (Flora North Am)
Habitat:gypsum or highly gypseous soils
| Form of cushion | TC | Tufted cushion, densely caespitose |
| Compactness | 0 | Hollow, with canopy gaps |
| Variability | 0 | No variability |
| Root system | P | Single pivotal root |
| Woodiness | 1 | Woody at base |
| Thorniness | 0 | No |
| Succulence | 0 | No |
| Flowers | 0 | Flowers sessil |