约的小坚果的翅的宽是小坚果或更多的宽的1/2；雌花序有花序梗。
Wings of nutlet ca. 1/2 as wide as nutlet or more; female inflorescence pedunculate.
乔木的雌花花序在树冠外层的位置也能增加授粉的机会。
The position of female inflorescences of trees in peripheral parts of the crown may also augment the probability of pollination .
在雌花芽发育过程中，ZR在花序原基形成期和发育初期的含量非常高，以后呈振荡递减的趋势。
During the process of female bud development, ZR concentration was high in inflorescence primodium formation and early development stage, then gradually decreased with fluctuating.
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