Robertg
I am not convinced with the "Chicasaw Sue" identification. CS has more white wash in the Falls than your NoID. Of the three suggested, I think "Apache" is the closest fit. My feelings is that the correct one has yet to be found/suggested.
There are three prominent "Dirty Plicata"* hybridizers that come to mind; Gibson, Innerst, & Keppel.
Yours looks like a Gibson. Lots of things effect the plants "stature" and coloration. which can make it harder to identify.
* Dirty Plicata = I am not sure this is in the lexicon of the iris world. I used this with Rick Tasco and Roger Duncan when they were touring my garden to describe a large swath of Sterling Innerst's work.
A plicata historically referred to to a blue/white or purple/white combo. I think that most iris folks would conjure up that color combination when someone said "plicata". Gibson was the first to start working on a large scale with different color combinations for plicatas. Innerst followed next with his own conbinations. Currently Keppel is carrying this torch, with a good amount of his introductions in the "area" being IBs.
