@inbook {7719,
	title = {Lepidium},
	booktitle = {Flora of North America},
	volume = {7},
	year = {2010},
	month = {2010///},
	pages = {570 - 595},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	author = {I.A. Al-Shehbaz and J.F. Gaskin}
}
