Perennial decumbent herb with a ± woody taproot.. Stems many, up to 35 cm. long, hirsute or glabrous.. Leaves sessile, lanceolate, 6–16 mm. long, 2–6 mm. wide, acute to obtuse, with truncate base, hirsute beneath, glabrescent above or entirely glabrous; margin cartilaginous, ± undulate and sparsely denticulate.. Inflorescence lax, ± leafy, sometimes reduced to a single terminal flower; pedicels up to 22 mm. long, hirsute or glabrous.. Hypanthium obconical, ± 10-nerved, hirsute or glabrous.. Calyx-lobes 2.5–7 mm. long, glabrous to sparsely hirsute and denticulate.. Corolla 6.5–10 mm. long, blue, split almost to the base into linear lobes, puberulous inside towards the base, usually ± hirsute outside on the midvein.. Filament-bases dilated, ciliate; anthers ± 2 mm. long.. Ovary 3-locular, semi-inferior; style shorter than or rarely as long as the corolla, glabrous below; lobes 3, ± 1 mm. long.. Capsule 3-locular, ± 10-nerved; valves 3, 1.5–2 mm. long.. Seeds elliptic-oblong in outline, slightly compressed, 0.5–0.6 mm. long; testa almost smooth.
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