Miconia is a beautiful tree. The problem is, it grows quickly and takes over. I have heard it is taking over most of Tahiti, and it has landed in Hawaii. I have helped look for it on Oahu, where it is believed it has been eradicated. It has apparently been found on Maui and the Big Island of Hawaii, where allegedly they are trying to contain it rather than eradicate it.
So if you are hiking in beautiful Hawaii and happen to find a tree (which may be very small) with large leaves that are purple on the bottom, please report it to the Hawaii Invasive Species Council.