Millettia leucantha or sathon is a species of plant in the legume family, Fabaceae. It is a perennial flowering tree native to Indo-China – Cambodia, Laos, Myanmar, Thailand, and Vietnam – as well as Bangladesh and southern Yunnan province in China.[2]
| Imbralyx leucanthus | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Imbralyx |
| Species: | I. leucanthus
|
| Binomial name | |
| Imbralyx leucanthus (Kurz) Z.Q.Song (2021)
| |
| Varieties[2] | |
|
2; see text | |
| Synonyms[2] | |
|
Millettia leucantha Kurz (1873) | |
It is the provincial tree and flower of Khorat or Nakhon Ratchasima Province in Isaan (Thailand), where it is known as sathon (สาธร).
Varieties
editTwo varieties are recognized:
- Imbralyx leucanthus var. buteoides (Gagnep.) Z.Q.Song (synonyms Millettia buteoides Gagnep., Millettia leucantha var. buteoides (Gagnep.) L.K.Phan, Millettia bassacensis Gagnep., and Millettia buteoides var. siamensis Craib) – Cambodia, Laos, Thailand, and Vietnam
- Imbralyx leucanthus var. leucanthus (synonyms Millettia latifolia Dunn, Millettia leucantha var. latifolia (Dunn) L.K.Phan, Millettia pendula Benth., Millettia utilis Dunn, Phaseoloides pendulum (Benth.) Kuntze, and Pongamia pendula Graham) – Bangladesh, Myanmar, Thailand, and southern Yunnan
Uses
editSathon 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. buteoides (aka Imbralyx leucanthus var. buteoides).[3] This sauce used for cooking is the only OTOP product made from the sathon tree.[4]
See also
editReferences
edit- ^ Barstow, M. (2019). "Millettia leucantha". IUCN Red List of Threatened Species. 2019: e.T62026460A62026462. doi:10.2305/IUCN.UK.2019-1.RLTS.T62026460A62026462.en. Retrieved 18 September 2023.
- ^ a b c Imbralyx leucanthus (Kurz) Z.Q.Song. Plants of the World Online. Retrieved 18 September 2023.
- ^ Loei, Pitsanulok and Petchaburi Province
- ^ "SEB Program" (PDF). Archived from the original (PDF) on 2008-07-04. Retrieved 2009-04-20.
External links
edit- Province plant- Khorat
- Detailed picture
- Thai plants
- Studies on the Chemical Constituents of Stem Bark of Millettia leucantha