@article {8315,
	title = {Phylogeny of the coneflowers and relatives (Heliantheae: Asteraceae) based on nuclear rDNA internal transcribed spacer (ITS) sequences and chloroplast DNA restriction site data},
	journal = {Syst. Bot},
	volume = {25},
	year = {2000},
	month = {2000///},
	pages = {539 - 565},
	author = {L.E. Urbatsch and B.G. Baldwin and M.J. Donoghue}
}
