Japan Flora: Stoloniferous; stems, leaves and inflorescence coarsely white-pilose; stems ascending or short-decumbent at base, erect, 20-30 cm. long, with few pairs of leaves, sometimes branched; leaves broadly lanceolate to ovate, usually ovate-oblong, 3-6 cm. long, 2-4 cm. wide, sub- obtuse, cuneate to rounded at base, with few mucronate teeth, the petioles 1-3 cm. long, the upper leaves usually sessile; spikes densely many-flowered, 3-8 cm. long, about 2 cm. across, the bracts depressed-cordate, long-ciliate, broadly cuspi­date; calyx 7-10 mm. long, the teeth short spine-tipped; flow­ers blue-purple, about 2 cm. long; corolla toothed on the mid­lobe of lower lip; filaments with a tooth on upper part; nutlets about 1.6 mm. long, yellow-brown, lustrous, obtusely compressed-trigonous, rounded at apex, with few pale longi­tudinal lines on margin and on both faces, the areole small. June-Aug. Sunny places in lowlands and mountains.

Hokkaido, Honshu, Shikoku, Kyushu; common.

var. aleutica Fern. Stems suberect from the base, estolonifer아is，innovation shoots short. Hokkaido, Honshu (n. and centr. distr.). Kuriles, Ko­rea, cooler regions of e. Asia, and the Aleutians. Grades into the typical phase which occurs in Europe.