BRIT Press. “Intermountain Flora: Vascular Plants of the Intermountain West, U.S.A. Volume 7, Potpourri: Keys, History, Authors, Artists, Collectors, Beardtongues, Glossary, Indices”. Journal of the Botanical Research Institute of Texas 12, no. 2 (November 20, 2018): 548. Accessed April 20, 2024. https://journals.brit.org/jbrit/article/view/958.