01 n. A long-rooted morning glory (Ipomoea leptophylla) of Western U. S.
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1.
A long-rooted morning glory (Ipomoea leptophylla) of Western U. S.(Bot.)
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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.