海岛苎麻(原变种) hai dao zhu ma (yuan bian zhong)

Petiole 1.5-13 cm; leaf blade ovate to lanceolate, 8-23 × 2.5-13 cm, base obtuse or rounded. Achene and surrounding perianth rhomboid, tuberculate, base cuneate, apex 2-4 toothed. Fl. Jun-Aug, fr. Aug-Oct.

Secondary forests, thickets, along streams, roadsides; below 100 to 1400 m. S Anhui, Fujian, Guangdong, Guangxi, SE Guizhou, W Hunan, Jiangxi, Taiwan, Zhejiang [Japan].