Irises: What type of iris?, 1 by prettypeony

prettypeony wrote:
This iris was given to me several years ago. It multiplied quite a bit and this year I have a lot of blooms. I was told it was a Louisiana Swamp iris. Most of the Louisiana iris pics I see are so full and flat, not really like this one. Can anyone tell me what type of iris I have? It looks a little more blue in the picture; is really dark purple with light yellow/green streaking in the throat. Ruth