OK, all you Old World types. Get rid of the potatoes, tomatoes and other related plants. Jamaica, get rid of your coffee industry. Native plants only. Africa, get rid of cacao plants, that's New World. Pepper, that comes from southeast Asia.

This whole thing gets silly very quickly. The really important thing about non-native plants is whether they can spread madly, like kudzu, or whether they can be controlled so they do not get too pushy, taking over from other plants we wish to keep around for any of a variety of reasons.

Meanwhile, enjoy your own garden and try not to be too invasive to others.