1a. Oplismenus undulatifolius var. undulatifolius
求米草(原变种) qiu mi cao (yuan bian zhong)
Panicum undulatifolium Arduino, Animadv. Bot. Spec. Alt. 14, t. 4. 1764; Orthopogon undulatifolius (Arduino) Sprengel.
Leaf blades densely hairy with tubercle-based hairs. Inflorescence with short branches, the axis hispidulous. Fl. and fr. Jul–Nov. 2n = 54.
Light shade in forests, moist places, common. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [warm-temperate and subtropical regions of the N hemisphere, uplands of India and Africa].