The glabrous or slightly scabrous lemmas are prominently nerved and long, with awns long. The abaxial surfaces of leaf blades are glabrous or scabrous and occasionally pubescent or puberulent. The calli are typically glabrous and smooth, but can be occasionally scabrous or rarely pubescent. The spikelets are glabrous or scabrous and become lax when mature. The rachillas are typically either scabrous or pubescent, but can occasionally be smooth and glabrous. Its sheaths are scabrous or the lowest ones pubescent. Their surface is scabrous and glabrous and the tip is attenuate. The main panicle branches are appressed with dominant and scabrous axis. The glumes are smooth or occasionally slightly scabrous. Its bark is scabrous and cracked, whitish with pendulous extremities. The glumes are either smooth or scabrous. The glumes can be smooth or scabrous. These are alternately smaller, the smaller ones minutely scabrous. The adaxial surfaces of leaf blades are typically scabrous, though occasionally are hirsute or puberulent. The bristles of the pappus are scabrous, barbellate, or plumose.