Vanilla siamensis
| Vanilla siamensis | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Monocots | 
| Order: | Asparagales | 
| Family: | Orchidaceae | 
| Subfamily: | Vanilloideae | 
| Genus: | Vanilla | 
| Species: | V. siamensis  | 
| Binomial name | |
| Vanilla siamensis Rolfe ex Downie  | |
| Synonyms | |
| 
 Vanilla pierrei Gagnep. 1931  | |
Vanilla siamensis (common name: Thai vanilla) is a plant species of southern China, Thailand, Cambodia, and Vietnam. It is an epiphyte that occurs in montane evergreen forests.