Annuals 4-7 cm tall. Stems erect, rigid, fastigiate branched from base, with flowering branches crowded together, glabrous or papillate. Basal leaves withered at anthesis; petiole 0.5-1 mm; leaf blade broadly ovate, 7-10 × 5-8 mm, margin cartilaginous and ciliolate, apex rounded and mucronate, midvein indistinct. Stem leaves overlapping, petiolate; leaf blade oblong-lanceolate to oblong, 3-9 × 1.5-3.5 mm, margin broadly membranous, apex obtuse and mucronate, midvein indistinct. Flowers few to many. Pedicel 2-4 mm, densely papillate. Calyx narrowly obconic, 7-10 mm; lobes elliptic-lanceolate, 3-4 mm, equal, ca. as long as tube, margin broadly membranous, apex acute and apiculate, midvein indistinct. Corolla blue-purple, funnelform, 1.3-2 cm; lobes ovate-orbicular, 3.5-4.5 mm, margin entire, apex rounded; plicae ovate-oblong to ovate, 2-2.5 mm, margin denticulate, apex obtuse. Stamens inserted at middle of corolla tube, unequal; filaments 3-6 mm; anthers narrowly ellipsoid, 1.5-1.7 mm. Style 2-3 mm; stigma lobes linear. Capsules narrowly obovoid, 6-7 mm; gynophore to 7 mm, stout. Seeds brown, ellipsoid, 1.1-1.3 mm. Fl. and fr. Apr-May.
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