To the best of my knowledge "Qi Hua Lu Shuang" is technically a farmer's variety or landrace, meaning nobody has ever held rights over it and can be propagated and sold freely. This of course hasn't stopped several less than scrupulous nurseries from selling it as their own creation, but these days it's easy to find out the truth and selling as "an ancient Chinese variety" is good marketing and only false to a point (we don't know how old this cultivar is: it may date to the 1870's but that's highly speculative).
