@inbook {7730,
	title = {Bidens},
	booktitle = {Flora of North America},
	volume = {21},
	year = {2006},
	month = {2006///},
	pages = {205 - 218},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	author = {J.L. Strother and R.R. Weedon},
	editor = {Committee, Flora of North America Editorial}
}
