Quick definitions from WordNet (man-of-the-earth)
▸ noun: long-rooted morning glory of western United States
▸ noun: tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato
▸ noun: long-rooted morning glory of western United States
▸ noun: tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato