I will just address the taking of the plant I will leave ethics and what ever to everyone else: Try to take leaf cuttings when ever possible. If not a couple seeds is okay. (Note- a couple not a whole capsule, only 4 Sarr seeds are needed, Take one from each of four different plants). When an exact copy of a Sarr is wanted you can split the rhizome in half (down the middle even if it only has one growth point). I recommend a dividing knife for this. Both halfs of the plant should recover. Only do this to plants with large rhizomes. Of for branching plants like flava and minor a small offshoot could be taken. For conservation purposes ask bugweed or Barry Rice.