The European smoketree (Cotinus coggygria), also known as smoke bush, Venetian sumach, or dyer's sumach is a species of flowering plant in the family Anacardiaceae, native to a large area from southern Europe, east across central Asia and the Himalayas to northern China. The wood was formerly used to make the yellow dye called young fustic. From the Middle Ages onwards, the heartwood and leafy branches of smoke bush were widely used in Europe, especially Italy, for dyeing silk & wool (young fustic), often in combination with other yellows, such as weld, as the yellow shade from young fustic tends to have a reddish hue.
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