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.
Each cell of a canna plant naturally has 18 chromosomes, or 9 pairs of chromosomes from the seed and pollen parents respectively. These plants with their paired chromosomes are termed diploid, from the Greek word for "double".