... gray-green or blue-green, wide, linear-lanceolate, 30 to 60 cm long, 2 to 5 cm wide, rough, acuminate tip; leaf tongue ... hairy. Large panicle-shaped, apical, erect, sometimes slightly curved, 15 to 25 cm long, sometimes longer; spikelets 9 ~ 12 mm long ... pith large, hollow. Application identification: Reed rhizome and Kudzu, able to relieving heat. However, reed rhizome clear heat wins, Pueraria Jie ...