Protecting and enhancing the natural values of Salt Spring Island and its surrounding waters


Yellow Flag Iris

Yellow Flag Iris (Iris pseudacorus)

This attractive plant with three upward-pointing petals forms thickets in wetlands and severely reduces water flow, displacing native plants and damaging wildlife habitat.. Plant fragments may be spread and develop into new infestations. Any yellow iris growing in a wet area is yellow flag iris. Classified as a noxious weed under the BC Weed Control Act.