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含羞草為什麼會閉上葉子
含羞草為什麼會閉上葉子
更新时间:2026-08-07 12:26:32

  含羞草會閉上葉子是一種防禦機制,是為了保護自己免受暴風雨的摧殘,同時也是一種生理現象,是含羞草在系統發育過程中對外界環境長期适應的結果,含羞草為豆科多年生草本,由于葉子會對熱和光産生反應,受到外力觸碰會立即閉合,所以得名含羞草,形狀似絨球,開花後結莢果,果實呈扁圓形。

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