New Round In The East-West Sweet Potato Kerfuffle

What's the story, morning glory?Well, let me tell you: the sweet potato and other morning glory family members may have been around millions of years earlier than believed — after first sprouting thousands of miles from where many paleobotanists thought they evolved.
Much like last year's discovery that nightshades (which include both the delicious, like tomatoes, and the deadly, such as belladonna) are much older than previously thought, researchers believe they have eviden