Ipomoea fastigiata

Từ điển Oxford Learners Wordfinder 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, wild sweet potato vine, man-of-the-earth, manroot, scammonyroot, Ipomoea panurata
• Hypernyms:
morning glory