Marquise de Poilly is a synonym of Baronne de Pouilly.
Canna 'Martha Washington' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Martin Cahuzae requires research.
Canna 'Marvel' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Mary Layden' is a small Premier Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Mary Thilow' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Canna 'Mary Thumb' is a miniature cultivar, with green leaves and yellow flowers.
Masterpiece requires research.
Matador requires research.
Matchless requires research.
Canna 'Mattie Cole' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Maudie Malcolm' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Maurice de Vilmorin requires research.
Maurice Mussy requires research.
Maurice Revoise requires research.
Canna 'Maverick Magenta' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Max Kolb requires research.
Maxima requires research.
maxima Lodd. ex Roscoe is a synonym of indica var. indica.
Maxima Purpurea requires research.