Canna 'Caballero' is a small Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Campania' is a medium-sized Italian Group cultivar, with green leaves and yellow flowers.
Canna 'Cannova Lemon' is a miniature Miniature Group cultivar, with green leaves and yellow flowers.
Canna 'Cannova Yellow' is a small Miniature Group cultivar, with green leaves and yellow flowers.
Canna 'Capri (2)' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Caprice' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Carolina Gold' is a medium-sized Premier Group cultivar, with dark leaves and yellow flowers.
Canna 'Carolina Moonglow' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Casteldor' is a small Crozy Group cultivar, with green leaves and yellow flowers.
Chaméléon is a synonym of Chameleon.
Canna 'Champion (1)' is a medium-sized Italian Group cultivar, with green leaves and yellow flowers.
Canna 'Charise' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Charles Moore' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Charming' is a medium-sized Crozy Group cultivar, with dark leaves and yellow flowers.
Canna 'Chaumes' is a small Premier Group cultivar, with green leaves and yellow flowers.
Canna 'Chelsea' is a small Premier Group cultivar, with green leaves and yellow flowers.
Canna 'Compact de Villée' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Conestoga' is a medium-sized Conservatory Group cultivar, with green leaves and yellow flowers.
Cote d'Or is a synonym of Côte d'Or.
Canna 'Côte d’Or' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.