This plant of a friend seems to only produce calyxes. Is this a genetic thing or could it also be due to some kind of stress? If it is because of genetics, do you think this could be worth saving by taking a cutting?
Do you know the genetics of the plant? That looks like a "grinspoon" or "string of pearls" mutation. There's another version called willowing, but the leaves are twisted when it's that.
Check out the Dr. Grinspoon strain. That thing might be a pain to trim, but it should smoke great!