Thigmonasty
![Mimosa pudica in normal and touched state.](/Images/godic/202502/16/Mimosa_pudica2134.gif")
![](/Images/godic/202502/16/Pulvinus2134.png")
Thigmonasty or seismonasty is the nastic response of a plant or fungus to touch or vibration. Conspicuous examples of thigmonasty include many species in the leguminous subfamily Mimosoideae, active carnivorous plants such as Dionaea and a wide range of pollination mechanisms.