Stubbendieck, J. L., <br/><br/>
North American range plants / 
J. Stubbendieck, Stephan L. Hatch and Kathie J. Kjar 
 - 2nd ed. 
 - Lincoln :  University of Nebraska Press,  1981 
 - xi ,464 p. :  ill., maps. ;  26 cm . 
<br/><br/>Includes  references and index 
<br/><br/><label>ISBN: </label>0803241402 0803291329 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Range plants--North America<br/>Range plants--Identification--North America