Template:Peirson et al., 2006
- Peirson, J.A., Cantino, P.D. & Ballard, H.E. 2006. A Taxonomic Revision of Collinsonia (Lamiaceae) Based on Phenetic Analyses of Morphological Variation. Systematic Botany 31(2): 398–409. DOI: 10.1600/036364406777585838 JSTOR ResearchGate