Perennial mat–forming herb with prostrate branching stems radiating from a thick taproot. Stems glabrous or hairy, leafy and finally rough by persisting leaf–bases. Leaves (5)10–25(40) x (2)3–6(12) mm., mostly rosulate at the tips of the branches, lanceolate, elliptic or oblanceolate, acute at the apex, tapering to a broad flat petiole–like base; margin incrassate, sparsely denticulate, ± undulate, thinner and usually ciliate towards the base, otherwise leaf generally glabrous, occasionally sparsely pubescent. Flowers sessile in the leaf–rosettes, opening one at a time. Hypanthium 10–nerved, glabrous. Calyx–lobes 3–8 mm. long, united for 1–2 mm. at the base, lanceolate, acute, with incrassate, ciliate margins. Corolla 12–22 mm. long, funnel–shaped, blue to white, outside puberulous or glabrous, inside pubescent at least below; tube 6–12 mm. long. Filament–bases narrowly dilated, ciliate; anthers 2–3 mm. long. Ovary 3–locular. Style shorter than the corolla, eglandular, hairy below, at the base broadened to a shallow cone, thickened towards the apex, shortly 3–lobed. Capsule 2–3 mm. long, subspherical, 10–nerved, crowned by the hardened calyx–lobes, dehiscing by an apical lid formed by the accrescent style–base, or sometimes by a ring around the base of the persistent style. Seeds 0·7–0·8 mm. long, trigonous, reticulate, red–brown.
