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.
For other spices, see allspice, aniseeds, caraway, cardamom, cayenne pepper, chili powder, Chinese five-spice powder, cinnamon, cloves, coriander seeds, cumin, curry powder, fennel seeds, garam masala, ginger, juniper berries, mace, nutmeg, paprika, pepper, peppercorns, saffron, Sichuan pepper, star anise, and turmeric.