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  1. American medicinal plants of commercial importance /
    By: Sievers, A. F.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1930.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: AgSpace  Botany, Medical  Classification  Ethnobotany  Internet resource  Medicinal plants  Traditional medicine  United States  Weeds  Wild flowers  wild plants  
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  2. Nature's healing arts : from folk medicine to modern drugs / by Lonnelle Aikman ; photos. by Nathan Benn and Ira Block ; paintings by Tony Chen ; prepared by the Special Publications Division.
    By: Aikman, Lonnelle. - National Geographic Society (U.S.)
    Publication info: Washington :National Geographic Society,c1977.
    Contributed by: Internet Archive (
    Subjects: Folklore  Materia medica, Vegetable  Medicina  Pharmacognosy  Plants, Medicinal  Traditional medicine  
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