Lower nodes of culms usually with a ring of silky white hairs below and above sheath scar; culm sheaths densely stiffly hairy; auricles usually crescent-shaped, reflexed.

• 在鞘痕下面和高于鞘痕的秆通常具的下部节一枚绢状的白色的毛的戒指；浓密硬的竿箨有毛；通常的叶耳新月形，反折。