perichaetial leaf

例句：

1. 1. The plant's perichaetial leaf is a unique feature that distinguishes it from other species.
   这种植物的叶柄叶是一个独特的特征，使它与其他物种区分开来。
2. 2. The scientist observed the perichaetial leaf of the new species and noted its distinctive features.
   这位科学家观察了新物种的叶柄叶，并注意到了其独特的特征。
3. 3. The perichaetial leaf plays an important role in the plant's growth and development.
   叶柄叶在植物的生长和发育中起着重要的作用。