WordNet sense 1 (prostrate or semi-erect subshrub of tropical America, and Australia; heavily armed with recurved thorns and having sensitive soft grey-green leaflets that fold and droop at night or when touched or cooled):

live-and-die, touch-me-not, action plant, humble plant, Mimosa pudica, shame plant

WordNet sense 2 (semi-climbing prickly evergreen shrub of tropical America having compound leaves sensitive to light and touch):

Mimosa sensitiva