Yellow Ducky was included in a collection of toothy plants that I purchased. It has multiplied well, I have never used pollen or set pods on it. It's scape height is close to 34 inches. It does well in my colder climate. Sorry, I can't get more enthusiastic as it really has little to make it stand out. It looks like many other yellow daylilies. I have this one marked to go on my spring sale list. I don't even have a picture of it.
For me it is an average toothy daylily.