Synonyms for Humble Plant (same or very similar meaning)
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, Mimosa pudica, shame plant, sensitive plantFrom the ODE community, based on WordNetadd/edit