glauca is a synonym of glauca var. glauca.
Canna 'glauca f. Caroni' is a small species, with green leaves and white flowers.
Canna 'glauca f. Davia' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and yellow flowers.
Canna 'glauca f. Peach Delight' is a medium-sized aquatic cultivar, equally at home as a water marginal or in the border, with green leaves and pink flowers.
Canna 'glauca var. flava (Michx. ex Lam.) Willd.' is a medium-sized cultivar, with green leaves and yellow flowers.
Canna 'glauca var. glauca' is a medium-sized aquatic species, equally at home as a water marginal or in the border, with green leaves and yellow flowers.