The listing, Purple Coneflower seeds 10+ has ended.
Purple Coneflower, also known as Echinacea or Black Sampson, is one of the world's most useful medicinal herbs. Research shows that it has the ability to raise the body's immunity against bacterial and viral infections by stimulating the immune system. It is also an antibiotic and helps to relieve allergies. Echinacea angustifolia (Purple Coneflower) was widely used by the North American Plains Indians for its general medicinal qualities. Plants in this genus were probably the most frequently used of all North American Indian herbal remedies. They had a very wide range of applications and many of these uses have been confirmed by modern science. The plant has a general stimulatory effect on the immune system and is widely used in modern herbal medicine.
The roots and the whole plant are considered particularly beneficial in the treatment of sores, wounds, burns etc, and possessing cortisone-like and antibacterial activity. In particular, the root has been promoted as containing a more efficacious mixture of active chemicals. A 2003 study in the Journal of the American Medical Association found that when echinacea products made from the entire plant were taken after the second cold symptom appeared they provided no measurable beneficial effect for children in treating the severity or duration of symptoms caused by the common cold virus. The study has been criticized for using whole-plant extracts instead of root extracts, and the dosages studied were lower than those recommended by herbalists. A 2005 study in the New England Journal of Medicine focused on several root extracts, but still found no statistically significant effects on duration, intensity, or prevention of symptoms.
Reference
http://www.ndsu.edu/pubweb/chiwonlee/plsc211/student%20papers/article10/Richardson,%20Nicole%20Marie/