Description:dense hummock to mat-forming to 20cm or more wide
Habitat:obligatory cremnophyte, meaning that it only occurs on cliffs where it grows in rock crevices, which are usually south- or south-east facing
| Form of cushion | F | Low cushion |
| Compactness | 0 | Hollow, with canopy gaps |
| Variability | 0 | No variability |
| Root system | NA | NA |
| Woodiness | 0 | Herbaceaous |
| Thorniness | 1 | Yes |
| Succulence | 1 | Yes |
| Flowers | 2 | Long peduncle |