plurituberosa T. Koyama & Nob. Tanaka requires research.
Canna 'Pluto' is a medium-sized Italian Group cultivar, with dark leaves and red flowers.
Podgora requires research.
poeppigii Bouché is a synonym of indica var. indica.
Poésie requires research.
Pohl Emléke requires research.
Canna 'Poinsettia' is a small Crozy Group cultivar, with green leaves and red flowers.
Polar Bear requires research.
Polaris requires research.
Canna 'Polish Lady' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Polly Gay is a synonym of Dolly Gay.
Canna 'Polonaise' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
polyclada is a synonym of eximia.
polymorpha Lodd. ex Loudon is a synonym of indica var. indica.
Canna 'Pomone' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Canna 'Porcelain Petals' is a small Premier Group cultivar, with green leaves and white flowers.
Porcelain Rose requires research.
Porcelana requires research.