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.
Brighton Orange is a synonym of Verdi.
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.
Brilliant (2) is a synonym of Brillant.
Canna 'Britannia' is a medium-sized Italian Group cultivar, with green leaves and multi-coloured flowers.
brittoni is a synonym of liliiflora Warsc. ex Planch..
Broad-leaved canna is a synonym of tuerckheimii Kraenzl..
Broadleaf is a synonym of tuerckheimii Kraenzl..
Brocade (1) requires research.
Canna 'Brocade (2)' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Bronze requires research.
Bronze Bedder requires research.
Bronze Globe requires research.
Bronze Olympic requires research.
Bronze Pointevine is a synonym of Bronze Poitevin.
Bronze Poitevin requires research.
Canna 'Bubblegum' is a medium-sized Premier Group cultivar, with green leaves and pink flowers.