Japan Flora: Rhizomatous perennial; stems erect, 20-40 cm. long, simple or short-branched in upper part; radical leaves ovate-cordate, long-petiolate, the cauline leaves ovate, 3-5 cm. long, 2-3 cm. wide, shortly acuminate, abruptly narrowed to rounded and sessile or subpetiolate at base, 7- to 9-nerved, with appressed callose-based hairs above, glabrescent beneath; inflorescence pedunculate, short appressed-strigose; flowers 10-12 mm. long, blue; calyx lanceolate, pilose, acute, slightly shorter than the corolla-tube; nutlets flat, broadly wing-margined. Aug. Alpine;
Hokkaido; rare. The typical phase occurs in the s. Kuriles.