Lantana is a pest in Australia. It was introduced from the tropical Americas or Africa although I don't know when. The flower is about 2 cm across and is actually quite pretty - almost like a miniature bunch of flowers of different colours. My friends with properties though spend a lot of their time digging, burning and poisoning Lantana in an attempt to eradicate it and it grows like a blackberry bush into a dense thorny thicket without the benefit of an edible fruit.
