http://www.dnr.state.wi.us/org/caer/ce/eek/veg/plants/lilblue.htm

http://www.southwest.msus.edu/wildlife/littlebs.htm

http://www.wayne.uakron.edu/nature/drlittlebluestem.htm

http://www.ext.nodak.edu/county/cass/horticulture/grass/grasses.htm

http://www.prairieresto.com/little_bluestem.htm

http://www.noble.org/imagegallery/grasshtml/LittleBluestem.html  
http://www.lib.ksu.edu/wildflower/littlebluestem.html
Prairie Wildflowers & Grasses of North Dakota
    By: Chris Grondahl & Andrea Evelsizer