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Ipomoea purpurea in Loganville, Georgia' I1 H. ]* D" v4 U% D
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Morning glory was first known in China for its medicinal uses, due to the laxative properties of its seeds.9 f8 N2 h, k; ^8 G# s" b+ G/ D
; y) q) b7 T8 \) A% e+ @# K http://en.wikipedia.org/wiki/Morning_glory