Much-branched prostrate perennial herb forming mats up to 23–40 cm. wide; stems 10–20 cm. long, tinged reddish, covered with spreading white hairs, with short internodes and rather congested foliage. Leaf-blades elliptic or oblong-elliptic, 0.6–1.5 cm. long, 1.5–6 mm. wide, ± acute at the apex, cuneate at the base, scabrid with white hairs on upper surface and particularly along the margins, also with hairs on midrib and nerves beneath; stipule-base hairy, ± 2 mm. long, with 3–6 fimbriae 3–6 mm. long; free petioles ± 1 mm. long or obsolete. Flowers 1–several, sessile, in most leaf-axils. Calyx-tube oblong-ovoid, 2 mm. long, densely hairy; lobes 4, lanceolate, 1.5–2 mm. long, hairy along the margins. Corolla pale blue or lilac; tube narrowly cylindrical, 6 mm. long; lobes oblong, 2 mm. long, 1 mm. wide, hairy at the apex. Filaments exserted 1 mm. Style exserted 2.5–5 mm.; stigma shortly bifid, 0.8 mm. long. Capsule obovoid, 3 mm. long, 2.7 mm. wide, with spreading white hairs. Seeds chestnut-brown, oblong-ellipsoid, 2.5 mm. long, 1.2 mm. wide, 0.8 mm. thick, sometimes narrowed to one end, finely reticulate, ventrally grooved. Fig. 50/20, p. 342.