I went here
And put in a height of more than 56 inches, ploidy would likely be diploid, I think... But you could try without that being specified... And hybridized not after 1950. Not many of those old ones have photos, but they do have descriptions. When you find one tht sounds right, you could try the ATP database to see if we have a photo.
http://www.daylilies.org/Dayli...
