Sumac is a purple powder derived from the dried berries, and sometimes the leaves, of a nonpoisonous Turkish species of the sumac shrub. This ground spice is sour in taste with overtones of lemon and pepper.
This is a woody shrub/ small tree wiith compound leaves clusters of small greenish/ red / cream flowers and red hairy fruits. Its leaves/ shoots or berries are powdered and used as a spice. Also known as 'Sumach'.