Hi Janice,
I am wondering if this image is incorrect. The registration is " pale yellow self with bright green throat" which all the other images here as well as others online show. Also, the sepals on Dr. Carr's intros are generally more blunt, the daylily rounder, and the petals show a wider 'pie crust' ruffled edging, which also is how the other images are represented.
http://www.thebloomingauction....
Sue