Boehmeria squamigera Weddell; Chamabainia cuspidata var. denticulosa W. T. Wang & C. J. Chen; C. cuspidata var. morii (Hayata) W. T. Wang; C. morii Hayata; C. squamigera Weddell.

Herbs erect, ascending, or procumbent, 12-60 cm tall, producing slender, filiform basal overwintering stolons 10-20 cm. Stems often purplish, simple or branched, stems, branches, and petioles strigose, sometimes with mixed long pillose hairs. Leaves opposite, subequal in size at same node; stipules obliquely ovate, triangular, oblong, or lanceolate, 3-6 mm, membranous, apex mucronate; petiole 2-15 mm; leaf blade ovate, rhombic-ovate, or rarely narrowly ovate, 1-6.5 × 0.5-3 cm, herbaceous, secondary veins 2 or 3 each side of midvein, abaxial surface strigose and sometimes mixed hispid on veins, adaxial surface sparsely appressed hispid, base cuneate to rounded, margin with 3-13(-19) denticles from basal 1/3, apex often cuspidate, sometimes acuminate or acute. Glomerules 3-10 mm in diam. Male flowers: pedicel 2-3 mm; perianth lobes 1.5-2 mm, connate to middle, puberulent apically. Achene and surrounding perianth tube obovoid, 1-1.2 mm, strigillose on shoulder, often truncate at top. Fl. Jun-Aug, fr. Aug-Nov.

The variation in this species is too continuous to justify the maintenance of var. denticulosa and var. morii. The plants are used in Chinese medicine to relieve abdominal pain.

Forest margins, thickets, valleys, along streams, rocks; 1000-2900 m. Fujian, Guangxi, Guizhou, SW Hubei, Hunan, W Jiangxi, Sichuan, Taiwan, SE Xizang, Yunnan [Bhutan, India, Indonesia, Myanmar, Nepal, Sikkim, Sri Lanka, Vietnam].