Canna Flower Image with scientific classification

A genus of numerous handsome leaved tuberous-rooted plants bearing brilliant flowers varying from white, pale yellow to deep crimson.
They have large Lancelot leaves 1-2m high.
Admirable as plants in wet soil round tanks and pools, in well watered beds under light shade or in pots in sheltered places.
A number of varieties are grown in the gardens. Propagated by division of root-stock.