Basal nodes with a ring of gray-white silky hairs below and above sheath scar; culm sheath apically subtruncate, with a protuberance on one shoulder.

• 在鞘痕下面和高于鞘痕的基部的节具一枚灰白色的绢状的毛的戒指；竿箨顶部近截形，带有一个突起在一上扛着。