Queen Helena
Queen Helena is a synonym of Yellow King Humbert.
Queen Mab
Queen Mab requires research.
Queen Mary
Canna 'Queen Mary' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Queen of Beauty
Queen of Beauty requires research.
Queen of Italy
Canna 'Queen of Italy' is a medium-sized Italian Group cultivar, with green leaves and multi-coloured flowers.
Queensland Arrowroot
Canna 'Queensland Arrowroot' is a giant Agriculture Group cultivar, with green leaves and red flowers.
R. Wallace
Canna 'R. Wallace' is a small Crozy Group cultivar, with green leaves and yellow flowers.
R. Wallis
R. Wallis is a synonym of R. Wallace.
Ra
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.
Radio
Canna 'Radio' is a tall Crozy Group cultivar, with green leaves and yellow flowers.
Radnóczi Emléke
Radnóczi Emléke requires research.
Ragamuffin
Ragamuffin requires research.
Raj Mahal
Raj Mahal is a synonym of Pride of India.
Rajah
Rajah requires research.
Rajaji
Rajaji requires research.
Rayon d’Or
Rayon d'Or requires research.
Razzle-Dazzle
Razzle-Dazzle requires research.
recurvata Bouché
recurvata Bouché is a synonym of patens (Roscoe) Tb. Tanaka.
Red
Red is a synonym of La France.
Red Beauty
Canna 'Red Beauty' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.