wiki Mimosa pudica (Sensitive Plant) (pudica = shy), is a creeping annual or perennial herb often grown for its curiosity value: the compound leaves fold inward and droop when touched, re-opening within minutes.Wiki doesn't mention why the plant does this. But to me it seems like a good way to protect the leaves from small bugs. I wonder why more plants don't have this.
It's also a good place to hide for a smart bug. Such a quick reaction almost has to be there to protect against animals, or maybe rain, wind or snow.
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