竿箨耳廓镰刀形，长。沿着中脉的两面的那个或的叶片背面稍具短柔毛。
Culm sheath auricles falcate, long. Leaf blade abaxially minutely pubescent along one or both sides of midrib.
总状花序1 - 4，从最上部的叶，具长柔毛或具粗毛具多细胞毛腋生；苞片宽线形，长于花梗。
Racemes 1-4, axillary from uppermost leaves, villous or hirsute with multicellular hairs; bracts broadly linear, longer than pedicel.
不育的子房球状，密被具铁锈色长柔毛。
不育的子房球状，密被具铁锈色长柔毛。
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