I don't think any of us have a problem if a person wants to keep a "true strain", but we do have a problem with the government restricting what we grow and share in the name of genetic purity. Too much emphasis on "the government", here, I think. Take, for example, state governments, and, in particular, the Colorado Department of Agriculture. Euphorbia myrsinites is listed as a noxious weed. (You can see it growing along the road in one or two places.) Whose idea was it to list it? I doubt that anyone in the CDoA has the inclination to drive around the state looking for "invasive exotics" to include on their list (for the purpose of, say, increasing their power and authority). Undoubtedly, someone saw the euphorbia, totally freaked out, and contacted the CDoA. I would suggest that the government, state or federal, is simply enforcing, more or less, something that someone with influence, and not in the government, thought was a good idea. Bob Nold Denver, Colorado