Ambassadeur is a synonym of Ambassador.
Canna 'Ambassador' is a medium-sized Italian Group cultivar, with dark leaves and red flowers.
Ambassador Red is a synonym of Ambassador.
Canna 'Ambassadour' is a medium-sized Crozy Group cultivar, with green leaves and white flowers.
Canna 'Amber Cup' is a small Premier Group cultivar, with green leaves and yellow flowers.
Ambrosia requires research.