The following literature references are cited in the Washington Flora Checklist. These may include floras, journal articles, monographs, theses, web sites, and other scholarly resources.
View literature beginning with:
Ito, Y., et al. 2010. Hybridization and polyploidy of an aquatic plant, Ruppia (Ruppiaceae), inferred from nuclear and plastid DNA phylogenies. American Journal of Botany 97(7): 1156–1167.