The Kangaroo grass (Themeda barbata) belongs to Poaceae (the Grass family). It is a perennial herb that is widely distributed from Honshu to Shikoku and Kyushu in Japan, Taiwan, the Korean Peninsula, China, India, Southeast Asia, Australia, and Africa. It grows in mountains and fields, along roadsides and river banks, and grows 70 to 150 cm tall. The rhizomes are short and grow in clusters. The leaf sheaths are covered with long hairs. The leaves are 10 to 50 cm long, 4 to 8 mm wide, and broadly linear. The inflorescence consists of seven spikelets, six of which are male and the central one is bisexual. The bisexual spikelets are 5 to 7 mm long with reddish brown basal hairs and a single thick reddish brown glume 4 to 7 cm long. It is called "日本苞子草" in Taiwanese Chinese and "黄背草" (huang bei cao) in Chinese.