The American Iris Society describes it as ...
"(TB) 'Oasis Amy'
2004, Chadwick
'Oasis Amy' ( Keith Chadwick, R. 2003) Seedling #02L-4-6-1. TB, 37" (94 cm), Early midseason bloom and rebloom. Lavender purple, fall center lighter; beards yellow, end purplish white; slight sweet fragrance. 'Cantina' X 'Total Recall'. Sand Hollow 2004."
I can't see the beards in the one linked. Does yours appear to match?