@article {7972,
	title = {Amaranthus rudis and A. tuberculatus _ one species or two?},
	journal = {J. Torrey Bot. Soc},
	volume = {128},
	year = {2001},
	month = {2001///},
	pages = {282 - 296},
	author = {D.B. Pratt and L.G. Clark}
}
