Endless watermelons, cantaloupes, cucumbers, and zucchini are ubiquitous signs of an American summer. How did that happen? Most of the foods in our diet, including the aforementioned summer staples, are recently introduced species that are not native to the Americas. In this Tree Mob, we will consider the geographic and evolutionary origins of our favorite food plants and the changes that occur in certain plant traits during the process of plant domestication. Then, we’ll discuss what the recent human-mediated movement of so many species of plants around the world means in an ecological context. Meet with Lori Shapiro of the Pierce Lab at Harvard University in the Leventritt Shrub and Vine Garden at Acc. # 332-84*B, Vitis vinifera x amurensis ‘Beihong’ on Thursday, June 30 at 6:00pm.