Costea, M., and S.  Stefanovic. 2010. ?Evolutionary History And Taxonomy Of Cuscuta Umbellata Complex (Convolvulaceae): Evidence Of Extensive Hybridization From Discordant Nuclear And Plastid Phylogenies.?. Taxon 59. Taxon: 783?1800. http://www.wlu.ca/documents/42043/11466_Costea%5Bproofs_author2%5D.pdf.