水苎麻(原变种) shui zhu ma (yuan bian zhong)

Boehmeria erythropoda Miquel; B. macrophylla var. dongtouensis W. T. Wang; B. platyphylla D. Don; B. platyphylla var. macrostachya (Wight) Weddell; Splitgerbera macrostachya Wight.

Stems and petioles sparsely strigose. Leaf blade 6.5-18 × 3.2-12 cm, often membranous, abaxial surface appressed strigose, reticulate veins slightly raised, adaxial surface sparsely strigose, apex long-cuspidate, 1.5-2 cm. Female spikes ± branched, nodding at apex. Fl. Jun-Aug, fr. Sep-Jan.

Forest margins, along streams, roadsides; 100-500 m in S China, 1800-3000 m in SW China. N Guangdong, N Guangxi, Guizhou, S Xizang, Yunnan, SE Zhejiang (Dongtou) [Bhutan, India, Indonesia, Laos, Myanmar, Nepal, Sikkim, Sri Lanka, Thailand, Vietnam].