描述
The legume Sesbania bispinosa, also known as Sesbania aculeata (Willd.) Pers., is a small tree in the genus Sesbania.
The flower is the provincial flower of Phra Nakhon Si Ayutthaya Province, Thailand.
It is an annual shrub which can grow to seven metres in height but usually only reaches one to two metres. It sends out fibrous, pithy stems with long leaves and bears purple-spotted yellow flowers. It produces pods which contain light brown beans.
The plant has a great number of uses, including as green manure, rice straw, wood and fodder.