Plants (7-)15-90 cm tall. Stems erect, subquadrangular, striate, simple or branched from base and/or above base. Basal leaves petiole flattened, 1-1.5(-3) cm; leaf blade spatulate, elliptic, or sometimes suborbicular, 2-3 × 0.5-1.5 cm, base narrowed to cuneate, apex acute to rounded, veins 3-5. Stem leaves sessile or short petiolate; leaf blade oblong, elliptic, ovate-lanceolate, or ovate, 1.5-7 × 0.5-3.5 cm, base rounded to truncate, apex acute to rounded, veins 5. Pedicel 0.5-3.5 cm. Calyx lobes elliptic to ovate, apex acuminate. Corolla blue to purple, campanulate, 1-2.5 cm, basal spurs 5-10(-14) mm; lobes elliptic to ovate, apex obtuse and apicu-late. Filaments 3-5 mm; anthers ovoid, ca. 1 mm. Seeds light brown, ca. 2 × 1 mm. Fl. and fr. Jul-Sep.
Beside streams in valleys, grassland slopes, scrub, forest margins and forests at elevations of 700-4,100 metres.
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