5. Mentha asiatica Borissova Bekrjasheva, Bot. Mater. Gerb. Bot. Inst. Komorova Akad. Nauk S.S.S.R. 6: 280. 1954.
假薄荷 jia bo he
Herbs rhizomatous, perennial. Stems erect, (30-)50-120(-150) cm, few branched, densely minutely tomentose. Petiole 0.1-0.5 mm; leaf blade oblong or elliptic to oblong-lanceolate, 3-8 × 1-2.5 cm, sometimes folded and curved downward, sometimes glaucous, appressed crisped minutely tomentose, glandular, base rounded to broadly cuneate, margin remotely unequal dentate, apex acute. Verticillasters in terminal cylindric spikes 3-8 × 1-1.4 cm; bracts linear to subulate, 5-7 mm; bracteoles subulate, nearly as long as calyx. Pedicel ca. 1 mm. Calyx ± purple-red, campanulate to funnelform, 1.5-2 mm, appressed pubescent, obscurely veined; teeth linear, close together in fruit. Corolla purple-red, 4-5 mm, pilose, tube gradually dilated, lobes ca. 1 mm; upper lobe oblong-ovate, ca. 2 × 1.5 mm, apex emarginate. Nutlets brown, ca. 1 mm, apex pilose, pitted. Fl. Jul-Aug, fr. Aug-Oct.
Riverbanks, landfills, waste areas, wet valleys; 0-3100 m. Sichuan, Xinjiang, Xizang [Kazakhstan, Kyrgyzstan, Russia, Tajikistan, Turkmenistan, Uzbekistan; SW Asia].