Claire requires research.
Canna 'Clans' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Clauda' is a medium-sized cultivar, with green leaves and red flowers.
Canna 'Cleopatra' is a medium-sized Italian Group cultivar, with variegated leaves and multi-coloured flowers.
Canna 'Cloth of Gold' is a medium-sized Italian Group cultivar, with dark leaves and orange flowers.