stricta Bouché is a synonym of glauca var. glauca.
Canna 'Strike Gold' is a small Crozy Group cultivar, with green leaves and multi-coloured flowers.
Striped Beauty (2) is a synonym of Trinacria Variegata.
Striped Beauty of Bangkok is a synonym of Trinacria Variegata.
Striped Beauty(1) requires research.
Striped Queen requires research.
Striped Wonder is a synonym of Bengal Tiger.
Stripped Beauty is a synonym of Trinacria Variegata.
Stromboli requires research.
Canna 'Stuttgart' is a tall Foliage Group cultivar, with variegated leaves and pink flowers.
Canna 'Südfunk' is a small Crozy Group cultivar, with dark leaves and red flowers.
Canna 'Suévia' is a medium-sized Italian Group cultivar, with green leaves and yellow flowers.
Canna 'Suffusion' is a medium-sized Premier Group cultivar, with green leaves and pink flowers.
Canna 'Sugar and Spice' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Sugar Candy is a synonym of Confetti.
sulphurea Bouché is a synonym of indica var. indica.
Sultana requires research.
Sultry requires research.
Summer Joy is a synonym of Nepalensis grandiflora.
Canna 'Sun Beams' is a medium-sized Crozy Group cultivar, with green leaves and multi-coloured flowers.