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.
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.
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.
Canna 'Maverick Magenta' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Canna 'May Vince' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Mazurka' is a tall Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Mellow Yellow' is a small Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Melody Dream' is a small Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Meriem Lombard' is a medium-sized Crozy Group cultivar, with green leaves and white flowers.
Canna 'Merle Cole' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Meteor' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Mexican canna is a synonym of glauca var. glauca.
Canna 'Meyerbeer' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Michelle Louise' is a medium-sized Premier Group cultivar, with green leaves and pink flowers.