I have updated it based on information from several sources including Iris-l discussions. Comments and corrections are welcome. A linked country, state or province will take you to a plant checklist for that area, where you may find more info on the native irises. For all of North America try the Biota of North America Program. For a checklist of irids in New England click here .
Recent investigations indicate that I. setosa var.
As such, the proper name would be I. hookeri.