Resource #1: Northern Prairie Wildlife Research Center Web site:

Resource #2: Natural Resources Conservation Services Web site:

Resource #3: Fire Effects Information Web site:

Resource #4: Umbanhowar, Charles Jr., Minnesota Plant Press 17(3) Spring 1998.

Resource #5: Kannowski, Paul Bruno, Wildflowers of North Dakota University of North Dakota Press p. 102

Resource #6: Kindscher, Kelly, Medicinal Wild Plants of the Prairie : An Ethnobotanical Guide University Press of Kansas 1992 p. 7, 225-226, 236, 257

Resource #7: Runkel, Sylwan T., Wildflowers of the Tallgrass Prairie : The Upper Midwest Iowa State University Press Ames 1989 p. 49