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History9 h' w# V: f8 o& U: A
Ipomoea purpurea in Loganville, Georgia1 C) [- e( o' L
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Morning glory was first known in China for its medicinal uses, due to the laxative properties of its seeds.. ]9 n6 _6 C0 m
6 s( z4 `# f) a8 J- w9 S3 z http://en.wikipedia.org/wiki/Morning_glory