wild sweet potato vine

Từ điển WordNet v3.1 - WordNet Dictionary

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, man-of-the-earth, manroot, scammonyroot, Ipomoea panurata, Ipomoea fastigiata
• Hypernyms:
morning glory