嚢のう状じょう葉よう

noun

ascidium; pitcher (of a pitcher plant)

Botanical term for a pitcher-shaped leaf, as seen in carnivorous plants like Nepenthes.

• ウツボカズラの嚢のう状じょう葉ようは、虫むしを捕とらえるために進しん化かした。

  The pitcher of the pitcher plant evolved to trap insects.