Perennial, dwarf shrub, with lax tufts 0.02-0.05 m long; woody at base. Leaves slender, ascending, not crowded, up to 10 mm long, hair-points deciduous. Inflorescences terminal; peduncles up to 90 mm long, purplish, terminating in a whorl of leaves and dichasium-like pseudoracemes. Nectariferous disc white, of 3 broad, thin, truncate or emarginate lobes. Stigmas white, flat, broad. Flowering time Sept., Oct. Fruit a rounded, loculicidal, 3-5-valved capsule, slightly longer than perianth. Seeds dark brown, shining, minutely rugose, compressed with a broad, flat border.
Like P. incanum but stipules small and opaque.