Yellow (flag) iris by Elizabeth Dack 1/3
Yellow (flag) iris by Emily Nobbs 2/3
Swallowtail on a yellow flag iris by Elizabeth Dack 3/3

Yellow (Flag) Iris Iris pseudacorus

The yellow iris is a water loving plant with striking large yellow flowers and sword shaped leaves.

Conservation status

The yellow iris is widespread in Norfolk, as well as growing naturally in wet places it has been introduced to some ponds and lakes.

Related questions & advice

Sorry, there's currently no Wildlife Questions and Advice with the specified paramaters.


Did you know? The yellow iris is thought to be the inspiration for the fleur-de-lis symbol used in heraldry and but the Scout movement.
Yellow flag iris growing in a river shows that the river is shallow and that there may be a ford nearby. In the 5th Century Clovis, king of the Franks, lead his army to safety by crossing the Rhine at a ford marked by yellow flag irises. He then adopted the iris as his badge and some people claim this is where the fleur-de-lis symbol comes from.

How to recognise
Where to see
When to see
How to help
Share this