Psammotropha quadrangularis Fenzl

An erect or diffuse shrublet 10-30 cm high, with ascending branches, either lax or in compact bunches. The younger shoots completely covered by overlapping 4-ranked leaves which form 4 projecting angles. Leaves erect, closely appressed or slightly spreading, 2-4 mm long, acute or acuminate, tipped by a stiff but often deciduous bristle, the margins pale-coloured, thickened and slightly revolute. Stipules wanting. Inflorescence terminal, pedunculate, cymose-umbellate, with 2-4 main branches. Flowers in groups either contiguous or distant. Peduncle 0.4-1 cm long. Bracts like the leaves but larger, thinner, almost flat and not thickened at the edge, the midrib distinct and slightly depressed. Perianth segments about 1 mm long. Disc wanting. Ovary 3-or 4-angled; stigmas 3 or 4. Fruit about as long as the perianth. Seeds brown, orbicular-reniform, finely tuberculate.