Sensitive plant

…The leaves are alternate, with 2-4 pinnate compound leaves at the end of a long stalk. When stimulated by vibration, contact, fire, alcohol or ammonia gas, the turgor pressure at the base of the leaf node changes, causing the leaves to fold and close, and the petiole to droop, but it recovers over time. From this, it is also called a sensitive plant in English. Like other legumes, it also closes its leaves in response to light and darkness (sleep movement), so it is also known as Nemurigusa, and its Chinese name is Ganshuyusou. …

*Some of the terminology that refers to "sensitive plant" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…葉は互生し，長い柄の先に2～4片の羽状複葉をつけ，振動，接触，火気，アルコールやアンモニアのガスによる刺激を受けると，葉節の基部の膨圧に変化を起こし葉をたたみ閉じて葉柄が下垂するが，時間がたてば回復する。ここから英語でsensitive plantともいう。他のマメ科植物と同様に明暗によっても葉を閉じる(睡眠運動)のでネムリグサの別名もあり，漢名で含羞草（がんしゆうそう）ともいう。…

※「sensitive plant」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報