The roasted seed is a coffee substitute.An edible oil is obtained from the seed.
Oak galls are excrescences that are sometimes produced in great numbers on the tree and are caused by the activity of the larvae of different insects. The insects live inside these galls, obtaining their nutrient therein. When the insect pupates and leaves, the gall can be used as a rich source of tannin, that can also be used as a dyestuff. Very tolerant of maritime exposure and of trimming, it can be grown as a shelterbelt tree or hedge in maritime areas. Wood - strong, hard, durable. Used for furniture. It makes a good charcoal and a good fuel, burning well even if green.The bark is a source of tannin.
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A very ornamental though quite slow-growing tree. Transplants badly unless moved regularly and this should be done as growth commences in late May or in September. This plant is treated as a distinct species, Q. rotundifolia. Lam. by some botanists. Cultivated for its edible seed in Spain. The tree grows well in Britain but is said to fruit poorly here, however a tree at Kew was bearing a very good crop at the end of the hot summer of 1989 and again in 1991[K]. The seed ripens in its first year. Hybridizes freely with other members of the genus.This species is notably resistant to honey fungus.
Problems, pests & diseases
Associations & Interactions
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Polycultures & Guilds
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