Chambers, K. L. “Artemisia Estesii (Asteraceae), a New Diploid Species of the Artemisia Ludoviciana Complex in the Pacific Northwest (U.S.A.)”. Journal of the Botanical Research Institute of Texas, vol. 11, no. 1, July 2017, pp. 1-9, doi:10.17348/jbrit.v11.i1.1132.