Senegalia catechu

Kher is a deciduous, thorny tree which grows up to 15m in height.The plant is called khair in Hindi, and kachu in Malay, hence the name was Latinized to “catechu” in Linnaean taxonomy, as the type-species from which the extracts cutch and catechu are derived. The tree can be propagated by planting its seeds, which are soaked in hot water first. After about six months in a nursery, the seedlings can be planted in the field.