Bitterweed

Native to North America, the bitterweed is traditionally used to treat colds, diabetes and high blood pressure. Growing up to about a meter in height, the bitterweed is also a strong allergen for people with hay fever. In some European countries, the bitterweed has become an invasive species and may yield as high as 30% loss in soy beans.

 

last update by M 12/7/2012

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