Perennials 7-20(-25) cm tall. Stolons 3-5 cm, simple to 3branched. Stems erect, simple, glabrous. Basal leaves withered at anthesis. Stem leaves with petiole 0.8-1.2 cm; leaf blade ovate-elliptic to ovate, 2-4 × 0.7-1.7 cm, base obtuse, margin thick cartilaginous, apex obtuse; vein 1, abaxially distinct. Inflorescences (1 or) 2-4-flowered. Calyx obconic; tube 1.7-2.3 cm, membranous; lobes oblong to elliptic, 6-10 mm, subequal, margin cartilaginous, apex acute to obtuse and apiculate, midvein outside prominent. Corolla blue-purple, with pale yellow-green base and dark blue stripes, tubular-campanulate, 4.5-6 cm; lobes broadly ovate, 4-6 mm, margin entire, apex rounded; plicae ovate, 1.5-2.5 mm, margin denticulate or rarely entire, apex obtuse. Stamens inserted at basal part of corolla tube; filaments 1.2-1.4 cm; anthers narrowly ellipsoid, 2.5-3.5 mm. Style 4-5 mm; stigma lobes linear. Fl. and fr. Aug-Oct.
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