Japan Flora: Stems erect, 10-40 cm. long, 4-angled, ascending-puberulent; leaves broadly lanceolate to narrowly ovate, 3-6 cm. long, 1-2.5 cm. wide, acute, cuneate to sub truncate at base, usually glandular-dotted on both sides, coarsely deltoid-toothed, cilio- late, the petioles 1-5 nun. long; spikes 2-5 cm. long, loosely flowered, the pedicels appressed-pilose; calyx 3-3.5 mm. long; corolla 27-32 mm. long, blue-purple. May-June.