Do you know where these typical American garden plants originated in their wild forms before being genetically-engineered over millennia by clever humans into the international things we know and grow today?
Cucumber
Eggplant
Potato
Tomato
Onion
Zucchini (and all other squash and gourds)
Beans and Peas
Lettuce
Spinach
Strawberry
Radish
Peppers
Chard (including Swiss Chard) - chard is in the beet family - the beet was first grown for its greens, not the root
Corn (maize)
Asperagus
Rhubarb
Answers below the fold
Cukes - Southern Asia
Eggplant - India
Taters - Central America
Tomato - Central America
Onion - Central Asia
Zucchini - North America/Central America
Beans/Peas - There are Old World beans (possibly from Central Asia or the Middle East) and New World Beans (South America)
Lettuce - Egypt
Spinach - Central Asia
Strawberry is a hybrid of European and North American wild plants
Radish - probably South Asia
Peppers - Central and South America
Chard - likely domesticated in Sicily
Corn - Central America
Asperagus - Asia Minor
Rhubarb - China