Roots slender, 10-55 × 1-2 cm. Caudexes abundantly branched, and thus stems several to many from one caudex, caespitose. Main stems erect or ascending, 20-40 cm tall, villous; branches numerous, aggregated in lower part, 1-10 cm tall, usually sterile. Leaves on main stems alternate, those on branches opposite or subopposite; blade cordate or ovate, 5-30 × 5-24 mm, both surfaces variously pubescent, margin entire or nearly so, apex acute or obtuse; petiole 2-3 mm. Flowers solitary (rarely several), terminal on main stems and sometimes branches, ± pendent; pedicels 1-8 cm. Calyx tube adnate to ovary up to middle, semiglobose or hemispherical, glabrous or very sparsely white hispidulous; lobes ovate, ovate-oblong, or ovate-lanceolate, 7-20 × 2-7 mm, rather densely hispidulous, entire, recurved at margin, apex acute or obtuse. Corolla pale blue or pale purple with interior markings, campanulate or subglobose-campanulate, 2-4.5 × 2.5-3 cm; lobes suborbicular, 8-12 mm, apex obtuse or acute. Stamens glabrous; filaments slightly dilated at base, ca. 5 mm; anthers 4-5 mm. Capsule obconical at inferior part, conical at superior part, ca. 2 × 1.5 cm. Seeds brown-yellow, ellipsoid or oblong, ca. 1 mm, smooth. Fl. Jul-Sep, fr. Sep-Oct.
Grassy slopes, alpine scrub, crevices, forests, meadows at forest margins on north-facing slopes; at elevations from 3,300-4,600 metres.
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