Camellia japonica 'Rubra' or 'Single Red'. The wild form of the species Camellia japonica found on the eastern coast of China, on the islands of Japan, and in southern Korea. It has been cultivated for many centuries in China and Japan as an ornamental, and its seed is an important source of edible oil in Japan. (From catalogue, Camellias in the Conservatory Festival 2011, Chiswick House and Gardens).