(Bot.) A long-rooted morning glory (Ipomoea leptophylla) of Western U. S.
Synonyms:man of the earth, Ipomoea leptophylla.
2.
A tropical American prostrate or climbing herbaceous perennial (Ipomoea panurata or Ipomoea fastigiata) having an enormous starchy root; sometimes held to be source of the sweet potato.
Synonyms:wild potato vine, wild sweet potato vine, man of the earth, manroot, scammonyroot, Ipomoea panurata, Ipomoea fastigiata.