Description from Flora of China
Herbs. Stems slightly ascending, ca. 60 cm, densely retrorse fine strigose. Petiole slender, to 15 cm, finely strigose, hispid on groove; leaf blade elliptic, 3-20 × 1.8-11.5 cm, membranous, adaxially dark green, strigose, finely papillate, hispid on veins, abaxially white granular, finely strigose, sparsely hispid, base broadly cuneate to shallow cordate, margin irregularly serrulate or sometimes undulate-crenulate, apex acute to short acuminate. Verticillasters many flowered, globose; bracteoles lanceolate, margin ciliolate. Fruiting calyx tubular-campanulate, tawny outside, densely hispid, glabrous inside; teeth narrowly lanceolate, erect, ca. 5 mm, apex bristlelike-acuminate. Nutlets truncate. Fr. Nov-Jan.
Dense tropical forests, thickets; 1200-1500 m. Yunnan [Vietnam].