Canna 'Queen of Italy' is a medium-sized Italian Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Queensland Arrowroot' is a giant Agriculture Group cultivar, with green leaves and red flowers.
Canna 'R. Wallace' is a small Crozy Group cultivar, with green leaves and yellow flowers.
R. Wallis is a synonym of R. Wallace.
Canna 'Ra' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
Canna 'Radio' is a tall Crozy Group cultivar, with green leaves and yellow flowers.
Radnóczi Emléke requires research.
Ragamuffin requires research.
Raj Mahal is a synonym of Pride of India.
Rajaji requires research.
Rayon d'Or requires research.
Razzle-Dazzle requires research.
recurvata Bouché is a synonym of patens (Roscoe) Tb. Tanaka.
Red is a synonym of La France.
Canna 'Red Beauty' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Red Bird_x000D_
Canna 'Red Bird'
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see Liervalii_x000D_
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Canna 'Red Bird' - see Liervalii
Canna 'Red Cleopatra' is a medium-sized Italian Group cultivar, with dark leaves and red flowers.
Canna 'Red Dazzler' is a tall Premier Group cultivar, with green leaves and red flowers.
Red Durban is a synonym of Durban.