Wahlenbergia nodosa (H.Buek) Lammers

A rigid much branched diffuse or erect shrublet, up to 50 cm high though commonly 15-30 cm, the branches often divaricate, the younger white or pale-coloured. Leaves alternate, fasciculate, reflexed, often distant, rather thick, ovate-lanceolate, 2-6 mm long, 1-1.5 mm wide, acute, concave above, the edges entire or with minute teeth. Inflorescence with rigid spreading branches, often spinous in the later phases. Flowers solitary, 1-5 to a branch, on slender pedicels 3-7 mm long. Calyx lobes 2-3 mm long, acute or mucronate. Corolla white, fading to yellow, often brownish outside, 5-8 mm long, the tube very short, the lobes glabrous. Bases of the filaments ovate to lozenge-shaped, densely ciliate. Style blue, longer than the corolla, shortly hairy, gradually thickened to the top: stigma lobes 3, very short. Ovary less than half inferior, the lower part rounded or flattened, less than 1 mm long, about 1.5 mm diam. Fruit 5-ribbed, broader than long: valves as long as the calyx lobes, twice as long as the lower part.