Japan Flora: Plant loosely pubescent, with long multicellular crisped hairs; stolons from lower nodes after anthesis; rhizomes short; flowering stems 8-20 cm. long, erect, few-leaved, with few scalelike leaves at base, obtusely angled; leaves spreading, broadly ovate to ovate-cordate, 2-5 cm. long, 1.5-3.5 cm. wide, obtuse, some­times acute, usually with 2 or 3 short incisions on each side, the petioles 2-5 cm. long; leaves on stolons rather small, loosely arranged, the petioles 1-2 cm. long; verticils few-flowered, the lower loosely arranged, the upper few pairs forming a short headlike spike, the bracts prominent, rather leaf like; corolla pale purple, the tube about 2 cm. long, ampliate above, the upper lip about 4 mm. long, shallowly 2-lobed, the lobes broadly elliptic, rounded at apex; nutlets about 2 mm. long. Apr.-May. Damp woods in mountains.

Honshu, Shi­koku, Kyushu; rare.