This is a clump of DELIRIUM.
Introduced by Marky Smith~2001
Intermediate Iris "Delirium", Blooming mid-April zone 9
Brilliant Color, great accent plant
Photo taken at Schreiner's Iris Gardens in Oregon
Great bloom and lots of division-hardy in far North
bright,hardy grower in montana.
Photo taken May 08, 2010 @ Shreiner's Iris Gardens
Delirium, Smith 2001 IB