From its home in the northern climes of Asia - Mongolia, Siberia and the foothills of the Himalayas - rhubarb came first to Europe in classical times as a dried root with medicinal qualities. Thus was it was initially proposed to a British public. 'It purifieth the bloud and makes yong wenches look faire and cherry-like, ' says Gerard in his Herbal in 1597. It wasn't until the 18th century that the fruit or vegetable was introduced to English tables. Mary Prior has undertaken an extensive search through earlier literature and presents here a commentated repertoire of every sort of rhubarb...