If you were to poll the American gardening public, most would think that to find new and interesting plants for cultivation in our gardens, you would probably need to leave the country and head off to some foreign land to find cool new plants. While I have seen some amazing plants on my travels through Mexico and Latin America which do belong in gardens, you can go out into your own backyards, adjacent woodlots, and natural areas nearby and find interesting plants, possibly even new ones which might turn out to be an undescribed species.