This is a Trader Joe’s iris. I used a spray bottle on the flower and lit it from below and behind. Photographed extremely close with a macro telephoto.
[200mm f/4 macro, 300mm in 35mm equivalent terms, 36mm extension tube, 10 seconds @ f/40 and ISO, tripod mounted.]
Related images: Iris, Iris Tongue, Winged Iris, Enough with the Irises!