I am sure it is from U.S.A., but I cannot find similar cultivar in the catalog of Rosy Dawn.
I like this one, but I don't know its name.
I've never seen anything that even compares! Did you ever find a name?
Well, now I think it could be Illumination (see http://www.bakersacresgreenhouse.com/images/med-Illumination.JPG ), but I have never imported Illumination yet, maybe I will try this one next year to make sure whether they are the same.