@article {49104,
	title = {The origins of Erigeron trifidus (Asteraceae), an agamospermous rare species in Alberta},
	volume = {86},
	year = {2008},
	pages = {866-876},
	publisher = {Canadian Journal of Botany},
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cjb\&volume=86\&articleFile=b07-123.pdf},
	author = {Burke, J. L. and Bain, J. F.}
}
