珙桐 Traditional form: 珙桐 Pinyin (reading): gǒngtóng Definitions: dove tree (Davidia involucrata) Characters: 珙 - precious stone; a county in Sichuan 桐 - Chinese wood-oil tree, Vernicia fordii Traditional characters: 珙 - precious stone; a county in Sichuan 桐 - Chinese wood-oil tree, Vernicia fordii