Foster, Steven,  1957- <br/><br/>
Peterson field guide to medicinal plants and herbs of eastern and central North America / 
 Field guide to medicinal plants and herbs of eastern and central North America  Medicinal plants and herbs of eastern and central North America 
Steven Foster and James A. Duke ; photographs by Steven Foster 
 - 3rd ed 
 - Boston :  Houghton Mifflin Harcourt,  2014. 
 - xviii, 456 p. :  color ill. ;  19 cm. 
 - Peterson field guides .
 - Peterson field guide series .
<br/><br/>Includes bibliographical references (p. 422-425) and indexes. 
<br/><br/><label>ISBN: </label>0547943989 9780547943985 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicinal plants--East (U.S.)--Identification<br/>Medicinal plants--Middle West--Identification<br/>Medicinal plants--Canada, Eastern--Identification