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Walnut, American (or Black Walnut) Crown Black Walnut Burr Walnut Sap Walnut The following information is posted with permission of Timber Research and Development Association (TRADA) and is taken from their red booklets Timbers of the World. © TRADA Juglans nigra L             Family: Juglandaceae Other names black walnut. Distribution Black walnut is widely distributed throughout North America. from south Ontario southward to Texas, and in the east, from Maine to Florida. but it is not plentiful, firstly because its growth is scattered, and secondly. because of the clearing of around for cultivation and the demands for the timber have exhausted the supply in many areas. The tree Under favourable conditions, the tree attains a height of 30m and a diameter of 15m or more, the bole often being clear for 15m to 18m. The timber The sapwood is usually narrow, and pale brown in colour, the artwood varying in colour from rich chocolate-brown to a purplish-black. The wood has a fine even texture and a rather coarse grain, and weighs about 660 kg/rn3 when dried. Drying Dries rather slowly with a tendency to honeycombing. Durability Moderately durable. Working qualities The timber is moderately hard, tough, strong and is easily worked. It finishes well and takes an excellent polish. Uses Furniture, cabinets, gun stocks, musical instruments and decorative veneer. Juglans cinerea L. produces butternut, sometimes called white walnut. This occurs throughout the hardwood region of Ontario to Georgian Bay. and from New Brunswick to Minnesota and south to Georgia and Arkansas. The tree is 12m to 15m in height, with a diameter of 0.3m to 0.75m. The heartwood is a medium to dark brown colour, but not as dark as that of black walnut which it resembles somewhat in general appearance and texture, It is a rather soft and light, weak timber, which takes stain well, and is sometimes used as a substitute for black walnut, but its main uses are for boxes and crates, interior trim for ships and boats and wooden ware.