Millettia leucantha


Millettia leucantha or sathon is a species of plant in the family Fabaceae.
It is a perennial flowering tree found in Laos, Myanmar and Thailand.
It is the provincial tree and flower of Khorat or Nakhon Ratchasima Province in Isaan, where it is known as sathon.

Uses

Sathon sauce is a flavouring sauce used in Isaan cuisine. The leaves of two species of Millettia are used for making sathon sauce: Millettia utilis and Millettia leucantha var. buetoides. This sauce used for cooking is the only OTOP product made from the sathon tree.