'man-of-the-earth' definitions:

Definition of 'man-of-the-earth'

From: WordNet
noun
A morning glory with long roots of western United States [syn: man-of-the-earth, Ipomoea leptophylla]
noun
Tropical American prostrate or climbing herbaceous perennial having an enormous starchy root; sometimes held to be source of the sweet potato [syn: wild potato vine, wild sweet potato vine, man-of-the-earth, manroot, scammonyroot, Ipomoea panurata, Ipomoea fastigiata]

Definition of 'man-of-the-earth'

From: GCIDE