Shagbark hickory , pecan and walnut hulls were used in the old times for coloring clothes , baskets , leathers and yarns .

古时候，薄皮山核桃、美洲山核桃和胡桃的果皮都曾被用来给衣服、篮子、皮革，以及纺线染色。

Hickory of the eastern united states resembling the shagbark but having a much larger nut .

美国东部的山胡桃树，类似胡桃树但有一个大的坚果。