Oak trees are also infamous for the high concentration of tannins produced in the bark, which have been used to tan leather. Other parts of English oak such as leaves, galls, and acorns have been used ...

Oak galls are popping up everywhere this fall! They're the tiny, fuzzy yellow or brown balls on oak leaves and branches. You ...

White oak leaves and marble-sized galls. Galls are growths on plants caused by invasions of parasites, viruses, fungi and bacteria -- making galls centers of activity for both attacks on a plant's ...

The most important texts in western history - including the Magna Carta, Newton's theories and Mozart's music - were written using oak gall ink ... pedunculate oak or English oak produces acorns ...