Ontario Wildflowers website

Yellow Iris
Iris pseudacorus

Yellow Iris (Iris pseudacorus) Other common names: Sword Flag

Family: Iris Family (Iridaceae)

Group: Irises

Similar species:
  •   Common Cattail (Typha latifolia) - Leaves are very similar, but lacks the showy yellow flowers.

  •   Narrow-leaved Cattail (Typha angustifolia) - Leaves much narrower, and lacks the showy yellow flowers.

  •   Blue Flag Iris (Iris versicolor) - Much smaller plant, has blue flowers.

Flowers: Summer;  Yellow;  3 parts (petals)

Leaves: Simple, Entire

Habitat: Wet Areas

Books: Newcomb's Wildflower Guide: 120   

Native/Non-native: Non-native

Photographs: 26 photographs available, of which 4 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

Range Map is at the bottom of the page

Yellow Iris (Iris pseudacorus)

The showy yellow flower of Yellow Iris.

Yellow Iris (Iris pseudacorus)

A nice pair of flowers.

Please note that this is not the same species as the yellow irises found in gardens, which do not grow in water.

Yellow Iris (Iris pseudacorus)

Some Yellow Iris in a clump.

Yellow Iris (Iris pseudacorus)

The broad leaves of Yellow Iris. Note the water environment in which it grows.

Range map for Yellow Iris (Iris pseudacorus)

PLEASE NOTE: A coloured Province or State means this species occurs somewhere in that Province/State.
The entire Province/State is coloured, regardless of where in that Province/State it occurs.

(Range map provided courtesy of the USDA website and is displayed here in accordance with their Policies)