Cochlospermum regium
Cochlospermum regium, also known as yellow cotton tree, is a flowering plant that has its origins in the Cerrado tropical savanna of South America, but now it is also common in Southeast Asia.
Cochlospermum regium is a small tree. Its yellow and bright flowers have antioxidant properties.
In Thailand it is the provincial flower of Nakhon Nayok, Sara Buri, Buri Ram, Suphan Buri and Uthai Thani Provinces.