Samanea saman Seeds Botanical name: Samanea saman Samanea saman, commonly known as the rain tree, is a large, iconic tropical tree prized for its majestic, wide-spreading, umbrella-shaped crown that provides excellent shade. Native to Central and South America, this fast-growing species is now cultivated across the tropics. A distinctive feature of the tree is its bipinnate leaves, whose small leaflets fold up in the evening and during cloudy or rainy weather, a behavior that gives the tree its common name. |