先出叶仅具鞘而无叶片，长约2厘米，无叶耳。

Prophylls ca. 2 cm long, sheathed, without blade and auricles.

youdao

向上的分枝生于基部的3或4节；竿箨长圆形的更大的叶耳，并非渐狭。

Branches arising from basal 3rd or 4th node up; larger auricle of culm sheath oblong, not tapering.

youdao

向上的分枝生于基部的3或4节；竿箨长圆形的更大的叶耳，并非渐狭。

Branches arising from basal 3rd or 4th node up; larger auricle of culm sheath oblong, not tapering.

youdao