Leaf blades linear to narrowly lanceolate ; ligule membranous , sometimes minutely ciliolate .

叶片线形到狭披针形；叶舌膜，有时精确具短缘毛。

Leaves glabrous or rapidly glabrescent , or ciliolate only at apex and margin .

叶无毛或很快脱落无毛，或者只在先端和给镶边。