Vance, F.R., J.R. Jowsey, J.S. McLean, and F.A. Switzer. “Wild Flowers across the Prairies, 3rd Edition”. Blue Jay 57, no. 3 (October 1, 1999). Accessed November 22, 2024. https://bluejayjournal.ca/index.php/bluejay/article/view/5943.