Stewartia pseudocamellia (also Stuartia pseudocamellia; Japanese Stewartia or Deciduous Camellia; Japanese: ナツツバキ natsutsubaki, "summer camellia"; Korean: 노각나무 nogaknamu, "overripe cucumber tree") is a plant species in the genus Stewartia in the family Theaceae, native to Japan (southern Honshū, Kyūshū, Shikoku) and Korea. It is a small to medium sized deciduous tree, growing to 10–15 m (rarely to 18 m) tall often with multiple stems and/or low branching trunks.