Khair (Acacia catechu) is a species of acacia common in South and Southeast Asia. It is typically found in dry deciduous forests, which fall under the broader classification of Sub-Tropical Forests or Tropical Dry Deciduous Forests, depending on the specific climatic classification used. These forests are characterized by a marked dry season and are common in areas with moderate rainfall. Sub- Alpine, Cool-Temperate, and Temperate forests are found at higher altitudes or latitudes with different climatic conditions where Khair does not thrive.