Echinacea
<p ><i>Echinacea angustifolia</i> was widely used by the North American <a href="http://en.wikipedia.org/wiki/Plains_Indians" title="Plains Indians" >Plains Indians</a> for its general medicinal qualities.<sup id="cite_ref-18" class="reference" ><a href="http://en.wikipedia.org/wiki/Echinacea#cite_note-18" >[19]</a></sup> Echinacea was one of the basic antimicrobial herbs of <a href="http://en.wikipedia.org/wiki/Eclectic_medicine" title="Eclectic medicine" >eclectic medicine</a> from the mid 19th century through the early 20th century, and its use was documented for snakebite, anthrax, and for relief of pain. In the 1930s echinacea became popular in both Europe and America as an herbal medicine. According to Wallace Sampson, MD, its modern day use as a treatment for the common cold began when a Swiss herbal supplement maker was "erroneously told" that echinacea was used for cold prevention by Native American tribes who lived in the area of South Dakota.<sup id="cite_ref-WebMD_11-1" class="reference" ><a href="http://en.wikipedia.org/wiki/Echinacea#cite_note-WebMD-11" >[12]</a></sup> Although Native American tribes didn't use echinacea to prevent the common cold, some Plains tribes did use echinacea to treat some of the symptoms that could be caused by the common cold: The <a href="http://en.wikipedia.org/wiki/Kiowa" title="Kiowa" class="mw-redirect" >Kiowa</a> used it for coughs and sore throats, the <a href="http://en.wikipedia.org/wiki/Cheyenne" title="Cheyenne" class="mw-redirect" >Cheyenne</a> for sore throats, the <a href="http://en.wikipedia.org/wiki/Pawnee_people" title="Pawnee people" >Pawnee</a> for headaches, and many tribes including the <a href="http://en.wikipedia.org/wiki/Lakota_people" title="Lakota people" >Lakotah</a> used it as an analgesic.<sup id="cite_ref-19" class="reference" ><a href="http://en.wikipedia.org/wiki/Echinacea#cite_note-19" >[20]</a></sup>
Native Americans learned of <i><a href="http://en.wikipedia.org/wiki/Echinacea_angustifolia" title="Echinacea angustifolia" >E. angustifolia</a></i> by observing <a href="http://en.wikipedia.org/wiki/Elk" title="Elk" >elk</a> seeking out the plants and consuming them when sick or wounded, and identified those plants as elk root.<sup id="cite_ref-20" class="reference" ><a href="http://en.wikipedia.org/wiki/Echinacea#cite_note-20" >[21]</a></sup></p>