When I was researching the usage I read that the stems and leaves could be used for the soda and gensing gums that are out there in the holistic shops. [I'm wishing that I could remember exactly where I read this].
Do you know if the Holistic shop's products use anything other than roots?
I know the plant tops contain the same active ingredients as the Roots. However I am not so sure about how much. I make a tea with the leaves for personal use. I have seen leaves piled up at a ginseng dealers sales room back in the late 70's. Go ahead and search Plant Tops on this site as I had brought this topic up a while back. There are a few additional responses to my question that may be of interest to your question.