Herbs perennial. Rootstocks to 1.5 cm in diam. Stems erect, 15-20(-25) cm tall, ca. 2 mm in diam. basally, densely spreading white pilose. Petiole 2-3 mm; lower leaf blade abaxially purplish or violet, subcircular, ca. 1 × 1 cm, upper leaf blades broadly ovate to oblong and 1.6-2.5 (-3.5) × (1.1-)1.5-2.5 cm, herbaceous, sparsely pilose, base shallowly cordate, margin crenate-serrate, apex obtuse to rounded. Racemes terminal, 4.5-8 cm, mostly pilose; bracts reduced upward, petiolate, ± ovate, margin entire. Pedicel ca. 3 mm. Calyx ca. 3 mm, densely pilose outside; scutellum ca. 1 mm. Corolla dark blue, (2-)3-3.5(-3.7) cm, densely fine glandular pilose outside, glabrous inside; tube base saccate-geniculate, ca. 5 mm wide at middle, throat to 7 mm wide; middle lobe of lower lip circular-ovate, to 1.2 cm wide near base; lateral lobes ovate, ca. 3 mm wide. Nutlets unknown. Fl. Jul.