'Yellow Monkey' is a dormant diploid introduced in 2006 by James Gossard. He does his hybridizing at Heavenly Gardens in Columbus, Ohio: http://www.daylilynet.com/inde...
Yellow Monkey is an EMO mid-season bloomer with possible re-bloom. It is listed as both pod and pollen fertile with currently 1 registered child: https://garden.org/plants/pare...
Last summer was the first for Yellow Monkey here, and like mantisOH, not as large or tall as registered, but it bloomed heavily for first season & I really enjoyed the yellow blooms.