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Medicinal poinsettia: During the middle ages people used the poinsettia flower as a purgative to aid in the elimination of black bile and melancholy.
Disadvantage of rose hybrids:Typically new colorful varieties of roses which have been created by hybridization are weaker against diseases. Blue roses soon: Scientists experimenting with liver enzymes stumbled across a method that might be used to produce blue roses in the near future.
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