Annuals 6-10 cm tall. Stems ascending, 2-4 × dichotomously branched from base, glabrous. Basal leaves with petiole 2-3 mm; leaf blade spatulate to ovate, 8-10 × 5-6.5 mm, base narrowed, margin smooth or ciliolate, apex acute to obtuse, midvein distinct. Stem leaves widely spaced; petiole tube 0.5-1 mm; leaf blade broadly ovate to subcordate, 6.5-12 × 3.5-6 mm, shorter than internodes, base rounded, margin ciliolate, apex acute; veins 3-5, distinct, slender. Flowers few to many. Pedicel 0.8-1.5 cm, glabrous. Calyx narrowly obconic, 4.5-5.5 mm, tube membranous; lobes purple, filiform to filiform-subulate, 2-2.5 mm, margin smooth or ciliolate, apex acuminate, midvein distinct. Corolla pale blue, narrowly obconic, 1.2-1.5 cm; lobes ovate-orbicular, 1.5-2 mm, apex obtuse; plicae ovate, 1.2-1.8 mm, margin entire or 2cleft. Stamens inserted just below middle of corolla tube, equal; filaments 4-5 mm; anthers ellipsoid, 1-1.5 mm. Style 0.5-1 mm; stigma lobes linear. Capsules narrowly obovoid, 4-5 mm; gynophore to 1.8 cm. Seeds light brown, narrowly ellipsoid, 1.3-1.5 mm. Fl. and fr. Jul-Sep.
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