Template:Spalik et al., 2009
- Spalik, K., Downie, S.R. & Watson, M.F. 2009. Generic Delimitations within the Sium Alliance (Apiaceae Tribe Oenantheae) inferred from cpDNA rps16-5'trnk(UUU) and nrDNA ITS sequences. Taxon 58(3): 735–748. DOI: 10.1002/tax.583004 JSTOR PDF.