Also sumac, or Rhus chinensis, a large species of deciduous small shrubs and trees growing in temperate and sub tropical climates. The dried and ground fruits of sumach give us the deep purple-red lemony spice, used in hummus and with sweet spices in Middle Eastern cooking. Sumach also yields tannins that are used for vegetable tanning, which produce a soft, lightweight and light coloured, pliable leather.
See Morocco leather.