Annuals 10-15 cm tall. Stems ascending, slender, 3 or 4 × dichotomously branched from base. Basal leaves withered at anthesis; petiole 1-2 mm; leaf blade lanceolate to obovate, 1-2 cm × 4-6 mm, margin cartilaginous and smooth, apex acute to obtuse, veins 3-5. Stem leaves widely spaced, recurved, folded; petiole tube 0.5-0.7 mm; leaf blade broadly ovate, 3.5-4.5 × 1-1.5 mm, much shorter than internodes, base cordate, apex acute, veins 1-3. Flowers many. Pedicel 0.7-1.5 cm. Calyx narrowly obconic, 3.5-4 mm; lobes filiform to filiform-subulate, 1.5-2 mm, base 0.5-1 mm wide, apex acuminate. Corolla blue, obconic to narrowly so, 5.5-7 mm; lobes ovate-orbicular, 1.5-2 mm, margin entire, apex obtuse to rounded; plicae truncate, margin irregularly crenulate. Stamens inserted just below middle of corolla tube, equal; filaments 1.2-1.5 mm; anthers ovoid, 0.3-0.8 mm. Style 0.6-0.8 mm; stigma lobes linear. Capsules obovoid, 3-4 mm; gynophore 2-5 mm. Seeds brown, ellipsoid, 1-1.2 mm. Fl. and fr. Aug-Sep.
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