Knapweed, which is also known as Star Thistle, Centaury and Basket Flower, is considered a noxious weed but the leaves and roots have been used medicinally for centuries. Honeybees are attracted to its abundant nectar and in some countries it has been used as an edible plant, though not in western cultures. In countries such as Turkey, Albania, Italy and Crete the leaves are boiled and fried in mixtures of a variety of greens.
Native Americans used a tea created from the plant to treat venomous bites, indigestion and eye infections. In the 14th Century it was used to treat sore throats and stimulate appetite as well as topically to heal wounds. More recently there has been research for possible use in cancer treatment..
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