@book {120,
	title = {Liatris},
	series = {Flora of North America},
	volume = {21},
	year = {2006},
	publisher = {Oxford University Press, Inc.},
	organization = {Oxford University Press, Inc.},
	address = {New York},
	author = {Guy L. Nesom}
}
@inbook {204,
	title = {Rudbeckia},
	booktitle = {Flora of North America},
	volume = {21},
	year = {2006},
	author = {Lowell E. Urbatsch and Patricia B. Cox},
	editor = {Editorial Committee of Flora North America,}
}
@inbook {321,
	title = {Stokesia},
	booktitle = {Flora of North America},
	volume = {19},
	year = {2006},
	pages = {201-202},
	publisher = {Oxford University Press, Inc},
	organization = {Oxford University Press, Inc},
	edition = {2006},
	address = {New York, NY},
	author = {Strother, John L}
}
@inbook {449,
	title = {Achillea},
	booktitle = {Flora of North America},
	volume = {19},
	year = {2006},
	pages = {492-494},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	address = {New York, NY},
	author = {Debra K. Trock},
	editor = {Editorial Committee of Flora of North America ,}
}
@inbook {114,
	title = {Cirsium},
	booktitle = {Flora of North America},
	volume = {19},
	year = {2006},
	pages = {95-164},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	edition = {2010},
	address = {New York, NY},
	author = {David J. Keil},
	editor = {Flora of North America Editorial Committee}
}
