Centenaire de Rozain-Bourcharlat is a synonym of Centenaire de Rozain-Boucharlat.
Centenárium requires research.
Centennial is a synonym of Merle Cole.
Canna 'Centurion' is a tall Crozy Group cultivar, with green leaves and orange flowers.
Canna 'Cerase' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Cerise Beauty' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Cerise Bell' is a medium-sized Foliage Group cultivar, with dark leaves and red flowers.
Canna 'Cerise Davenport' is a medium-sized Foliage Group cultivar, with green leaves and pink flowers.
César Bertholon requires research.
Ch. Benoit requires research.
Ch. E. Hodel requires research.
Challenger requires research.
Chaméléon is a synonym of Chameleon.
Champ d'Or requires research.
Canna 'Champigny' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Champion (1)' is a medium-sized Italian Group cultivar, with green leaves and yellow flowers.
Canna 'Champion (2)' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Champol requires research.
Canna 'Chanteclair' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.