Herbs. Stems 40-70 cm, purplish, finely retrorse pilose. Petiole 0.8-1.5 cm, densely fine pilose; leaf blade ovate, 10-15 × 4-6.5 cm, adaxially glabrous, yellow-brown strigose on veins, abaxially yellow brownish, dark glandular, base cuneate to rounded, margin ± coarsely serrate, apex acuminate to caudate-acuminate. Racemes terminal and axillary, 7-9 cm including peduncles ca. 5 mm, densely glandular pubescent; bracts persistent, ovate, ca. 2 mm, glandular pubescent, abruptly acuminate. Pedicel 1.5-2 mm, glandular pubescent. Calyx ca. 2.5 mm, 5-7 × 4 mm in fruit, throat ciliate hirsute at each tooth sinus, teeth acute. Corolla white, margin yellowish, ca. 5 mm, glabrous; tube funnelform, annulus at throat, densely villous-barbate, sparsely villous above throat, yellow resinous glandular, throat to 4.5 mm wide; upper lip straight, ca. 1 mm; middle lobe of lower lip oblong, ca. 2 mm, lateral lobes ca. 1 mm. Ovary glabrous. Nutlets slightly attenuate at base, ca. 2 mm in diam. Fl. Sep-Oct, fr. Nov.

* Forests, low mountains. Anhui, Jiangsu, Zhejiang.