Sclerolaena tetragona Paul G.wilson

Small erect woody perennial to 30 cm high. Branches cottony. Leaves mostly erect, linear, c. 10 mm long, fleshy, villous. Flowers solitary. Perianth sparsely villous, 4-lobed. Stamens 4. Fruiting perianth hard, glabrous; tube very broadly turbinate, c. 2 mm high and 3.5 mm wide, truncate at apex and base, 4-angled, ribbed; apex cusion-shaped, 4-angled or the angles extending into short stout spines (the radicular spine usually not developed). Seed horizontal.

Grows on rocky loam.