an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
(共通の血統または同属の帰属関係のような)他者と関係のある動物または植物
congener
a whole (a thing or person) of the same kind or category as another; "lard was also used, though its congener, butter, was more frequently employed"; "the American shopkeeper differs from his European congener"