Template:Binns et al., 2002

• Binns, S.E., Baum, B.R. & Arnason, J.T. 2002. A taxonomic revision of Echinacea (Asteraceae: Heliantheae). Systematic Botany 27(3): 610–632. DOI: 10.1043/0363-6445-27.3.610 JSTOR  
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