Rhus coriaria
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Rhus coriaria, commonly called Sicilian sumac, tanner's sumach, or elm-leaved sumach, is a deciduous shrub to small tree in the cashew family Anacardiaceae. It is native to southern Europe and western
Sommacco
Cultivated R. coriaria with olive trees in Spain
Spice (ground fruit) for sale in Istanbul
Spice, close-up
Tannic acid
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Tannic acid is a specific form of tannin, a type of polyphenol. Its weak acidity is due to the numerous phenol groups in the structure. The chemical formula for commercial tannic acid is often given a
Rhus coriaria
…used and also clinically investigated for lipid lowering effects. The leaves and the bark were traditionally used in leather tanning and contain tannic acid. Dyes of various colours, red, yellow, black, and brown, can be made from different parts of the plant…
A bottle of tannic acid (water solution) from the redwood tree.