Wahlenbergia brachiata (Adamson) Lammers

Stems slender, prostrate, 15-30 cm long, with very slender erect branches, the upper parts and inflorescence zigzag with long internodes. Leaves alternate, linear-oblong, 5-8 mm long, 1-2 mm wide, reflexed, the margins very slightly revolute, with 2-3 pairs of sharp teeth in the lower half. Lower leaves crowded, fasciculate, the upper distant, solitary. Leaves on the side branches spreading. Inflorescence zigzag, with long slender internodes 1-1.5 cm long, and divaricate or widely forking branches. Flowers solitary. Pedicels filiform, very shortly pubescent. Calyx lobes 3-4 mm long, acute, obscurely denticulate. Corolla 1-1.4 cm long, blue or violet, the tube as long as the calyx lobes. Bases of the filaments ovate-acuminate, less than 1 mm long. Style glabrous, very slightly thickened at the top. Ovary inferior, hemispherical or turbinate. Valves half as long as the calyx lobes.