Japan Flora: Glabrous annual or biennial; stems erect, 5-25 cm. long, simple or sparsely branched, somewhat 4-angled, smooth, few-flowered; basal leaves small, oblanceo­late, narrowed at base; cauline leaves broadly lanceolate or narrowly oblong, 1-3 cm. long, 5-10 mm. wide, obtuse, minutely papillose on margin, sessile; flowers pale blue-purple, 16-22 mm. long, 4- to 5-merous, the peduncles 0-2 cm. long; calyx-tube 4-6 mm. long, the lobes unequal, lanceolate, acute, nearly as long as the tube; corolla about twice as long as the calyx, the lobes about 1/4-I/3 as long as the tube; their crown about 2/3 as long as the corolla-lobes, whitish, finely laciniate; capsules as long as the corolla, sessile; seeds globose, pale brown, smooth. Aug.-Sept. Alpine.

Honshu (mountains of Shinano Prov.); rare.