An abnormal growth on oak, Quercus infectoria, trees, commonly found in the Turkish province of Aleppo. Aleppo, or oak, galls can contain up to 50% tannins. They were used for making iron gall inks.
See also Gall.
Synonyms and Related Terms
oak gall; Quercus infectoria
Sources Checked for Data in Record
- Judith Hofenk-de Graaff, Natural Dyestuffs: Origin, Chemical Constitution, Identification, Central Research Laboratory for Objects of Art and Science, Amsterdam, 1969