Template:Sun & Downie, 2010b
- Sun, F.-J. & Downie, S.R. 2010b. Phylogenetic relationships among the perennial, endemic Apiaceae subfamily Apioideae of western North America: additional data from the cpDNA trnF-trnL-trnT region continue to support a highly polyphyletic Cymopterus. Plant Diversity and Evolution 128: 151–172. DOI: 10.1127/1869-6155/2010/0128-0007 Full text PDF from ResearchGate