Campanula uniflora (Arctic Harebell)
Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz and C. Spurrier. 1997. Colorado Rare Plant Field Guide. Prepared for the Bureau of Land Management, the U.S. Forest Service and the U.S. Fish and Wildlife Service by the Colorado Natural Heritage Program.
Weber, W.A. and R.C. Wittmann. 1996. Colorado flora: Western Slope, Second edition. University Press of Colorado.
Welsh, S.L., N.D. Atwood, S. Goodrich and L.C. Higgins. 1993. A Utah flora, Second edition, revised. Jones Endowment Fund, Monte L. Bean Life Science Museum, Brigham Young University, Provo, UT.
Atwood, D, J. Holland, R. Bolander, B. Franklin, D.E. House, L. Armstrong, K. Thorne, and L. England. No date (about 1990). Utah threatened, endangered, and sensitive plant field guide.
Hultén, E. 1968. Flora of Alaska and neighboring Territories. Stanford University Press, Stanford, CA. (page 851 with illustration)
For distribution maps and more information, visit Natural Heritage New Mexico