WordNet (r) 3.0 (2006):

common morning glory
    n 1: annual or perennial climbing herb of Central America having
         sky-blue flowers; most commonly cultivated morning glory
         [syn: common morning glory, Ipomoea tricolor]
    2: pantropical annual climbing herb with funnel-shaped blue,
       purple, pink or white flowers [syn: common morning glory,
       Ipomoea purpurea]