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Blue Flag Iris

Blue Flag Iris (Native Ontario Wildflower)
Other Common Names:  American Blue Flag, Dagger Flower, Flag Lily, Larger Blue Flag, Multi-coloured Blue Flag, Poison Flag, Snake Lily, Water Flag
French Names:  Iris versicolore
Habitat:  Marshes, shallow water, preferring sun to part shade and wet feet
Flowers:  Its deep blue flowers bloom in July atop stems that reach 60-90 cm.  

Perennial that spreads by fleshy rhizomes
Ripe seed pod will split open and release seeds
Muskrats will not eat the rhizomes

Irises make an attractive display in shallow water
All parts of the plant are toxic