Japan Flora: Erect biennial; stems erect, usually branched in upper part, recurved-puberulent on the angles; radical leaves rosulate, long-petiolate, larger than the cauline, withering away before anthesis; cauline leaves ovate-oblong to broadly lanceolate, 3-6 cm. long, 1-2 cm. wide, obtuse, acute to cune­ate at base, obtusely toothed, thinly puberulent on both sur­faces, the petioles 1-3 cm. long; spikes terminal, 8-10 cm. long, rather prominently spreading-puberulent, simple or more often branched at base; calyx 2.5-3 mm. long at anthesis, to 4 mm. long in fruit, puberulent and glandular-dotted; corolla pale purple, 4-5 mm. long; nutlets loosely warty. May-June. Wet places, especially around paddy fields.

Honshu, Shikoku, Kyushu. Korea, China, Formosa, India to Malaysia, and Australia.