not happy having to fight multiple times to just get four tree leaves to give to a professor doing the quest of " must leave" or something to that nature. Anyways I had already fought and won against eight yes eight tree plants and find it very hard and confusing as to why I must continuely fight again and again against so many tree plants just to get four leaves! Please fix this in the next update!!!!!!!
So what I do for this quest is, I ignore it. Once in a while, the Daily Assignment will send me back to fight those tree guys and when I do, sometimes one more leaf drops. If I'm in the mood that day, I'll fight them a couple more times. Then I get annoyed again and go back to ignoring that quest until the next time a Daily sends me back.
Eventually, every single one of my wizards does finish that quest even with its obscenely low drop rate.