Decumbent or more commonly erect herbs. Stems up to 40 cm high, simple or branched, leafy mainly in the upper half, densely, often antrorse appressed strigose. Leaves broadly or narrowly elliptic, spathulate, obovate, oblong, elliptic-or obovate-oblong to oblong-ovate, petiole 0.5-3.5 cm long, glabrous above, strigose below, blade 2-12 by 0.7-3 cm, tapering into a petiole at base, obtuse or rounded and apiculate or acuminate at apex, with 5-7 lateral nerves on either side of midrib, sparsely strigose above, strigose below and along margins, denser along midrib. Cymes terminal or axillary, simple or branched, with 10-40 flowers, ebracteate, rhachis densely strigose; pedicels 1-7 mm long, densely strigose. Calyx 1.5-4 mm long, cleft to the base into 5 ovate to ovate-lanceolate, oblong or oblong-elliptic lobes 0.5-1 mm wide, with acute tips and a black gland just below tip, appressed strigose outside, sometimes only along ribs, glabrous inside. Corolla white or lobes pale purple at apex, throat pale yellow, 3-9 mm long, 5-12 mm in diam., tube 2-3(-5) mm long, lobes suborbicular to orbicular, 1.5-5 mm wide; fornices kidney-shaped, c. 1 mm wide, finely ciliate. Stamens: filaments very short, anthers c. 0.7 mm long. Pistil: style slightly shorter than calyx, stigma bilobed. Nutlets pyramidal, 1-1.5 mm long, dark brown, smooth, with ribbed angles. Fig. 16a-e.
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