Wahlenbergia sonderi Lammers

Annual. Stems many from the root, up to 30 cm high, not much branched, the younger covered with short hairs. Leaves alternate, not fasciculate, scattered, linear, 0.5-1 cm long, less than 1 mm wide, the edges with a few small teeth. Upper leaves smaller and more distant. Flowers solitary or in groups of 2-3, on pedicels 4-12 mm long. Calyx lobes about 2 mm long, ciliate, entire, rather thick. Corolla blue or white, 6-8 mm long, the tube as long as the calyx lobes, the lobes very narrow. Bases of the filaments broadly rhombic, as wide as long, shortly ciliate. Style hairy, thickened at the top. Ovary inferior, densely covered with short white hairs except for green veins. Fruit glabrescent, a little longer than wide: valves as long as the calyx lobes.