This is formed by the swollen lowest rachilla internode and adnate lower glume.
膨胀的最低的小穗轴节间和贴生的更低的颖片形成这。
2
Occasionally, the number of stamens and carpels is altered and an ectopic floret occurs in the axil of the rachilla.
雄蕊和心皮的数目偶尔也发生改变，在小穗轴的叶腋处偶尔也异位产生小花。
3
It is because the vascular bundles in its rachilla and lodicules were undeveloped, the transport system was abnormal. and the lodicules absorbed and lost water difficultly.