Garrettia

{{Short description|Genus of flowering plants}}

{{Speciesbox

|image = Naturalis_Biodiversity_Center_-_L.0939705_-_Mulder_-_Garrettia_cymarioides_-_Artwork.jpeg

|image_caption = Botanical illustration of Garrettia cymarioides (now Garrettia siamensis)

|genus = Garrettia

|parent_authority = H.R.Fletcher

|species = siamensis

|authority = H.R.Fletcher

|synonyms_ref =

|synonyms =

• Vitex cymarioides H.J.Lam & A.Meeuse
• Garrettia cymarioides (H.J.Lam & A.Meeuse) A.Meeuse

}}

Garrettia is a genus of flowering plant in the family Lamiaceae, first described in 1937. It contains only one known species, Garrettia siamensis. It is native to southern China (Yunnan), Java and Thailand.[http://apps.kew.org/wcsp/namedetail.do?name_id=88592 Kew World Checklist of Selected Plant Families]Pooma, R. (ed.) (2005). A preliminary check-list of threatened plants in Thailand: 1-193. National Park, Wildlife and Plant Conservation Department, Bangkok.