Canna 'Orange Delight' is a small Crozy Group cultivar, with green leaves and orange flowers.
Orange Humbert is a synonym of Parténope.
Canna 'Orange Julius' is a small Italian Group cultivar, with dark leaves and orange flowers.
Orange King is a synonym of Orange Bedder.
Orange King Humbert is a synonym of Roma.
Canna 'Orange Perfection' is a tall Foliage Group cultivar, with green leaves and orange flowers.
Canna 'Orange Punch' is a medium-sized Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Orange Tiger' is a small Italian Group cultivar, with variegated leaves and orange flowers.
Canna 'Orange Vif' is a medium-sized Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Orange Zest' is a small Crozy Group cultivar, with dark leaves and orange flowers.
Orchid is a synonym of City of Portland.
Canna 'Oriental' is a tall Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Osric' is a small Premier Group cultivar, with green leaves and pink flowers.
Canna 'Ottawa' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'P.J. Berkmans' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Pacha' is a tall Foliage Group cultivar, with dark leaves and red flowers.
Pacific Beauty is a synonym of Sémaphore.
Canna 'Pale Beauty' is a small Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Pale Pink' is a small Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Pallag Szépe' is a small Crozy Group cultivar, with green leaves and pink flowers.