(Arundinella montana)
Perennial.Rhizomes present,short.Culms 30–90 cm tall,5–13 -noded.Lateral branches simple or sparsely branched.Leaf-sheaths glabrous on surface or hairy.Ligule a fringed membrane,a ciliolate membrane,0.5–0.7 mm long,truncate.Leaf-blades straight,involute,5–19 cm long,1.5 mm wide.