Noun
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
semi-climbing prickly evergreen shrub of tropical America having compound leaves sensitive to light and touch
Source: WordNetA sensitive plant in a garden grew, And the young winds fed it with silver dew, And it opened its fan-like leaves to the light, And closed them beneath the kisses of night. Percy Bysshe Shelley