Oak apple due to the superficial resemblance and the preponderance of the oak marble gall in the wild. Other galls found on oak trees include the oak artichoke gall and the acorn cup gall, but each of these has its own distinctive form. Some common oak-apple-forming species are the "Biorhiza pallida" gall wasp in Europe, "Amphibolips confluenta" in eastern North America, and "Atrusca bella" in western North America. Oak apples may be brownish, yellowish, greenish, pinkish, or reddish. Oak galls have been used in the production of ink since at least the time of the Roman Empire. From the Middle Ages to
Oak Tree Stakes race was titled the Royal Wedding Day Stakes in 1981, as it took place on the same day as the wedding of Prince Charles and Diana. The present registered title, which acknowledges the link between Goodwood and the Oak Tree Racing Association of California, was introduced in 1982. An event called the Goodwood Stakes was staged during the Oak Tree meeting at Santa Anita Park in October but was renamed the Awesome Again Stakes in 2012. The Goodwood race has been sponsored by L'Omarins since 2014 and named the L'Ormarins Queen's Plate to link the race with the South African