Météore requires research.
Mexican canna is a synonym of glauca var. glauca.
mexicanna A.Dietr. is a synonym of glauca var. glauca.
Canna 'Meyerbeer' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Michelet requires research.
Michelle requires research.
Canna 'Michelle Louise' is a medium-sized Premier Group cultivar, with green leaves and pink flowers.
Canna 'Michelle M.' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Migaloo requires research.
Canna 'Mignon' is a medium-sized Crozy Group cultivar, with green leaves and pink flowers.
Canna 'Milk Festival' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and white flowers.
Canna 'Mine d'Or' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Minerva is a synonym of Trinacria Variegata.
Canna 'Minerve' is a tall Crozy Group cultivar, with green leaves and red flowers.
miniata Bouché is a synonym of paniculata.
Minnehaha requires research.
Mirani requires research.
Canna 'Miss Ann' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Miss B. Brunner' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Miss F. Dreer requires research.