无距萼片披针形；上部萼片狭卵形或长圆形。
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.
叶片通常长圆形到卵形，心形的或近如此在基部；叶和果没有短柔毛。
Leaf blade usually oblong to ovate, cordate or nearly so at base; leaf and fruit without pubescence.
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