Black Walnut circa 1890
Juglans nigra
Although absent from most of Canada, the black walnut does exist naturally in southern Ontario. Most of its commercial uses are associated with the fruit and its components. The fruit can be consumed fresh or added for flavour in cooking dishes. The protective fruit covering is rich in vitamin C. A brown dye produced by the fruit and covering is also used for staining floors. A mature specimen, the ridged, dark brown bark is more evident than on younger specimens.