Hart, Andrew, Kathleen Kron, and Emily Gillespie. 2017. “Molecular Phylogenetic Analysis of the North-Temperate Labrador Teas (Ericaceae: Rhododendron Subsect. Ledum) Suggests a Complex Genetic History”. Journal of the Botanical Research Institute of Texas 11 (1):53-65. https://doi.org/10.17348/jbrit.v11.i1.1138.