Perennial to 20 cm high. Branches tomentose. Leaves linear, c. 10 mm long, fleshy, silky, pilose. Flowers solitary. Perianth tomentose. Stamens 5. Fruiting perianth very closely white-tomentose, somewhat ribbed on abaxial face; tube subglobular, gibbous, c. 2.5 mm high and wide including the deeply hollowed base, adaxial surface very convex, abaxial surface almost flat; attachment elliptic, c. 3 mm long; limb incurved and inconspicuous; spines 2, lateral, slender, to 7 mm long, divergent, sometimes very reduced; radicular tubercle inconspicuous, adjacent to a spine. Seed oblique to erect or rarely horizontal.