Plants perennial. Roots thickened, up to 7 mm in diam. Stems single or 2 to several and caespitose, erect or ascending, 7-22 cm. Basal leaves rosulate, long petiolate; blade orbicular or ovate, 5-15 × 4-8 mm, margin crenate or entire; petiole 5-45 mm. Lower cauline leaves long petiolate; blade linear or lanceolate. Middle and upper cauline leaves 1-3, sessile; blade linear or narrowly lanceolate, 5-20 mm, margin crenate. Flowers solitary, terminal, ± pendulous. Hypanthium obovoid, 2-10 mm, glabrous; calyx lobes subulate to narrowly triangular, 1.8-8 × 0.5-1 mm, usually shorter than corolla, entire. Corolla blue or purple-blue, campanulate, 4-11 mm; lobes deltoid, ca. 1/2 as long as tube. Capsule obovoid, 5.5-20 × 2.5-6 mm. Fl. Jul-Aug, fr. Aug-Sep.
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