plurituberosa T. Koyama & Nob. Tanaka requires research.
Canna 'Pluto' is a medium-sized Italian Group cultivar, with dark leaves and red flowers.
Canna 'Poinsettia' is a small Crozy Group cultivar, with green leaves and red flowers.
Canna 'Polish Lady' is a medium-sized Premier Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Polonaise' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
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.
Porcelana requires research.
Canna 'Port Denison' is a medium-sized Premier Group cultivar, with dark leaves and pink flowers.
Canna 'Powick' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.
Canna 'Präsident Meyer' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Preference' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
Canna 'Prémices de Nice' is a medium-sized Foliage Group cultivar, with green leaves and multi-coloured flowers.
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Canna 'President'
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Canna 'President' - see Mr President
Canna 'President Carnot' is a medium-sized Crozy Group cultivar, with unknown leaves and red flowers.
Canna 'President de Péronne' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.
Président Dutailly requires research.
Canna 'President Faure' is a tall Foliage Group cultivar, with variegated leaves and red flowers.
Canna 'Président Loubet' is a medium-sized Crozy Group cultivar, with dark leaves and red flowers.