An erect, aromatic herb with suckers. Leaves simple, opposite, shortly petioled,oblong, ovate or lanceolate, crenate-serrate, cuneate at the base. Flowers lilac inaxillary distant whorls. Nutlets smooth. (India) Herb (0.3-0.5 m), creeping, contains, essential oil 1-2% (80% menthol) (Indonesia) Leaves few from a small tuber, with small bulbils boune at the middle and on theuppermost part of the petiole; leaflets 3, sessile, ovate-elliptic to oblong, 3-12cm Long,1-5cm Wide, entire, glabrous; scape solitary, 20-40cm Long; spathe typically green,6-7cm long, the tubular part 1.5-2cm long, the blade lanceolate, rounded at apex,curved at tip, glabrous outside, puberulent within; spadix with the appendage filiform,erect, 6-10cm long, glbrous; berry small, green. -May -July. (Korea) A perennial herbaceous plant, 5-50cm high. (Mongolia) Perennial herb, 30 - 50cm high, usually withereal in winter, stems quadrangular, erector prostrate, rooting at the nodes. Leaves opposite, ovate, softly tomentose on bothsides; margins serrate. Inflorescence in axillary capitate whorl; nowers small, white orlilac. All parts of the plant are aromatic (Vietnam)
Indonesia - Nagasari Korea - Gyeongnam Hamyang Medicinal Plant Experimantal Station Mongolia - Khangai, Mongol Daurian, Great Khingan, Khobdo, Middle Khalkha(North), East Mongolia, Depression of Great Lakes, Dzungarian Gobi. Vietnam - Ha Noi