Botanique requires research.
Canna 'Bounty' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Bourcier requires research.
Canna 'Brandywine' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Brandywine (2)' is a small Conservatory Group cultivar, with green leaves and red flowers.
Canna 'Braunt Orange' is a small cultivar, with green leaves and red flowers.
Braunti requires research.
Brazillian is a synonym of indica var. indica.
Breauté requires research.
Canna 'Brenda Elaine' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Breuil' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Brick is a synonym of discolor var. discolor (Lindl.) Nb.Tanaka.
Brick canna is a synonym of discolor var. discolor (Lindl.) Nb.Tanaka.
Canna 'Bridal Veil' is a medium-sized Crozy Group cultivar, with dark leaves and white flowers.
Bridesmaid requires research.
Canna 'Brillant' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Brilliant' is a small Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Britannia' is a medium-sized Italian Group cultivar, with green leaves and multi-coloured flowers.
Brocade (1) requires research.
Canna 'Brocade (2)' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.