Wild yellow IRIS (Iris pseudocurus)
Sometimes called Queen of the Swamp, wild yellow IRISES are taking over the ditches and some ponds in south-central Ontario. Brought to North America in the early 1900s, they escaped cultivation and are now naturalized in just about any place wet enough to maintain their watery needs.
Iris growing in a shady spot
Considered INVASIVE by many, they are also very lovely this time of year.
I am linking to Jenny Matlock at Alphabe-Thursday HERE