Japan Flora: Glabrous rhizomatous erect perennial 12-30 cm. high; steins simple, soli­tary, striate; leaves alternate or opposite, the radical few, broadly ovate or elliptic, 3-8 cm. long, 2.5-4 cm. wide, obtuse to acute, 5- to 7-nerved, with a long petiolelikc base 1-3 times as long as die leaf-blade, the cauline leaves small; inflorescence few-flowered, corymbose, often slightly branched, the bracts broadly lanceolate, the pedicels 1-3 cm. long; flowers 5-merous; calyx-lobes unequal，broadly linear, 1/2-2/3 as long as the corolla; corolla-lobes lanceolate, 17-20 mm. long, dark blue, with dark purple nerves, the glands paired, small, near the base of the corolla-lobes, surrounded by hairs about 2 mm. long; capsules 2/3 as long as die corolla; seeds wing-margined. Aug.-Sept. Alpine;

Hokkaido, Honshu (centr. and n. distr.). 

var. stenopetala (Regel & Tiling) Maxim. Flow­ers smaller, about 12 mm. long; corolla-lobes less prominently narrowed toward tip. Hokkaido. Sakhalin, Kuriles, e,Siberia, and Alaska.