• Scientific Name: Pollia japonica Thunb.
• Ref: Nov. Gen. Pl. 1:12. 1781
• English Common Name: East Asian pollia
• Chinese Common Name: 杜若 dùruò
• Japanese Common Name: ヤブミョウガ [薮茗荷/藪茗荷] yabumyōga
• Family: Commelinaceae
• Genus: Pollia
• Distribution: Forests in ravines; near sea level to 1200 m. SE Anhui (Huang Shan, Xiuning Xian), Fujian, N Guangdong, Guangxi, Guizhou, SW Hubei (Laifeng Tujia Zu Zizhixian, Xuan’en Xian), Hunan, Jiangxi, SE Sichuan (Pengshui Xian), Taiwan, Zhejiang [Japan, Korea].

Herbs perennial. Stems erect or ascending, 30--50 cm × 3--8 mm, puberulent. Leaves sessile or base attenuate into winged petiole; leaf sheaths glabrous; leaf blade narrowly elliptic, 10--30 × 3--7 cm, subglabrous and scabrous adaxially, glabrous abaxially. Inflorescence much longer than distal leaves; peduncle 15--30 cm, puberulent; cincinni numerous, 2--4 cm, often in several distant whorls, some in panicles, puberulent; involucral bracts lanceolate, puberulent; bracts membranous. Sepals ovate-orbicular, ca. 5 mm, glabrous, persistent. Petals white, obovate-spatulate, ca. 3 mm. Stamens 6, all fertile, rarely staminodes 1 or 2 with shorter filaments. Fruit globose, ca. 5 mm in diam. Fl. Jul--Sep, fr. Sep--Oct. (Flora of China)