Annuals 3.5-7 cm tall. Stems erect, branched from base, densely papillate. Petiole tube 0.5-1 mm, papillate; leaf blade ovate-lanceolate to ovate-triangular, subleathery, rigid, base obtuse, margin thick cartilaginous and smooth or ciliolate, apex acute and cuspidate, midvein prominent. Basal leaves withered at anthesis; leaf blade 0.9-1.2 cm × 2-4 mm. Stem leaves crowded; leaf blade 2-8 × 1-3 mm. Flowers subsessile. Calyx tubular to narrowly obconic, 4.5-5 mm; tube membranous; spreading, ovate, 1-1.2 mm, base slightly or not narrowed, margin thick cartilaginous and smooth or ciliolate, apex acute and cuspidate, midvein prominent. Corolla pale blue to blue, tubular, 7-8 mm; lobes ovate-lanceolate, 2-2.5 mm, margin entire, apex obtuse; plicae ovate, 1-1.5 mm, margin erose, apex obtuse. Stamens inserted at basal part of corolla tube, equal; filaments 2-2.5 mm; anthers ellipsoid, 0.6-0.8 mm. Style 1-1.2 mm; stigma lobes narrowly oblong. Capsules narrowly obovoid, 3.5-4 mm; gynophore 1.2-1.5 mm, stout. Seeds brown, ellipsoid, 0.9-1.1 mm. Fl. and fr. Jul-Sep.
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