Perennials 2-5 cm tall. Stolons 3-5 cm, usually few branched. Stems erect, simple, glabrous. Leaves crowded; petiole 3-5 mm, membranous; leaf blade spatulate to obovate, 4-8.5 × 2.5-5 mm, base narrowed, apex rounded; veins 1-3, abaxially distinct. Flowers solitary. Calyx tubular to narrowly obconic, tube 8-11 mm; lobes lanceolate to narrowly oblong, 5-6 mm, apex subacute to obtuse, midvein indistinct. Corolla blue, unspotted, tubular to narrowly funnelform, (2.3-)3-4 cm; lobes broadly ovate, 3-4 mm, margin entire, apex rounded; plicae obliquely ovate to truncate, 1-1.5 mm, margin erose, apex obtuse to rounded. Stamens inserted at middle of corolla tube; filaments 1.3-1.5 cm; anthers narrowly ellipsoid, 2-3.5 mm. Style 1.1-1.4 cm, filiform, longer than ovary; stigma lobes oblong. Capsules ellipsoid, 1-1.2 cm; gynophore to 1 cm. Seeds light brown, subellipsoid to globose, 0.8-1 mm; seed coat with spongy complex pits. Fl. and fr. Jul-Sep.
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