Well its an Iris ,and its bearded, probably one of the intermediate bearded group, not sure of the variety name though.

This is a canna. You may see it on this site under letter c

It is NOT a Canna. Proof of that will be the leaves - they should be swordlike and narrow. Not to mention that Cannas never have beards...

Thank you for your responses. Have followed up on what you have said and have found other pictures of bearded lillies that look just like mine.

Many thanks

Iris, bearded Iris, Wjohn, lol!

Whoops ! Can't even call that a typing mistake. Must be the brain going. Where did I get lily from?

Fleur de lis?

Very good Tugbrethil. It does have the same shape as a heraldic Fleur de lis. It appears that the yellow flag Iris (Iris pseudacorus) is the main candidate for this form though of course this Iris as Bamboo said belongs to the bearded group.

Some of the heirloom bearded Iris have that shape, but tracking down the variety is going to take more of an expert than I am. Always assuming it isn't an unnamed seedling.