Sesbania grandiflora (also known as agati, syn. Aeschynomene grandiflora) or hummingbird tree/scarlet wisteria is a small tree in the genus Sesbania. It is believed to have originated either in India or Southeast Asia and grows primarily in hot and humid areas of the world.
In the Thai language the flowers are called dok khae, in the Khmer language they are called ផ្កាអង្គាដី or pka angkea dey and in Vietnamese they are called so đũa. In the Philippines it is known as katuray and in the Indonesian language they are called bunga turi or kembang turi. In Chinese, they are called 大花田菁/ 木田菁/ 紅蝴蝶.