Template:Porter et al., 2010
- Porter, J.M., Johnson, L.A. & Wilken, D. 2010. Phylogenetic systematics of Ipomopsis (Polemoniaceae): Relationships and divergence times estimated from chloroplast and nuclear DNA sequences. Systematic Botany 35(1): 181–200. DOI: 10.1600/036364410790862542 Full text PDF from ResearchGate