Annuals 3-5 cm tall. Stems erect, branched from base, glabrous. Basal leaves with petiole 3-5 mm; leaf blade ovate to ovate-orbicular, 5-15 × 3.5-8 mm, margin cartilaginous and ciliolate, apex obtuse to rounded and mucronate, veins 3-5. Stem leaves 4-7 pairs, folded; petiole tube 1.5-2 mm; leaf blade navicular, 3-9 × 2.5-3.5 mm, equal or slightly longer than internodes, margin broadly membranous, apex obtuse and cuspidate, midvein abaxially distinct. Flowers few. Pedicel 4-9 mm, surrounded by leaves. Calyx narrowly obconic, 0.9-1.1 cm; lobes triangular, 3-4 mm, margin broadly membranous, apex acute, midvein slender. Corolla pale blue, outside with yellow-green stripes, narrowly obconic, 1.7-2.2 cm; lobes ovate, 4-5 mm, margin entire, apex caudate with a tip to 1.5 mm; plicae ovate, 2-2.5 mm, margin entire, apex obtuse. Stamens inserted at middle of corolla tube, unequal; filaments 4-5.5 mm; anthers narrowly ellipsoid, 1-1.5 mm. Style 1.5-2 mm; stigma lobes linear. Capsules narrowly obovoid, 8-9 mm; gynophore to 1.7 cm, stout. Seeds dark brown, ellipsoid, 1-1.3 mm. Fl. and fr. May-Jun.
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