Local Name : Khair (Assamese, Bengali), Dant-dhavan, Madan, Khayer (Hindi)
Scientific Name: Acacia catechu (L.) Willd., Oliv.
English Name : Black cutch tree
| Bark | Furrowed and Exfoliating |
| Commercial Value | Timber |
| Final Financial Return | ₹30,000-₹40,000 |
| Final Harvesting Period | 40 Years-60 Years |
| Flower Color | Creamy white |
| Flowering Time | July and August |
| Fruit Type | Pod |
| Fruiting Time | September and October |
| Growth Rate | Moderate Slow |
| Leaf Shape | Linear |
| Nursery technique | Seeds are soaked overnight and dried for one day before planting. Seeds are directly dibbled in polypot/mother bed. The medium for polypot/mother bed is prepared consisting of sand, river silt, vermicompost/cowdung in 1:1:1 proportion.
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| Plant parts used | Bark and Wood |
| Planting mechanism | One-two year old seedlings are ready for planting during rainy season. Spacing 3m x 3m. May be planted as mixed or pure crop. |
| Seed Collection Time | December and January |
| Site Suitability | All Riverine |
| Tree Character | Deciduous |
