Haworthia arachnoidea var. scabrispina

In their most typical form, these plants are easy to identify, because of the more or less rounded, rather than flat rosettes (see first two pictures).
When they don’t have this give-away shape, one has to have a closer look at the leaves and spines, which are firm and stiff.
Locality is also important, as they only occur in the southwestern corner of the great Karoo and the adjacent part of the Little Karoo.

hawoaracsca 2010-07-29#126

hawoaracsca 2011-04-17011

hawoaracsca  2010-07-29#128

hawoaracsca 2010-07-29#056