24. Weeds (see also 17. Native Plants; most native plant references include common weeds)

1. Weeds of the North Central States. 1981. NCR (North Central Regional Research Publication) No. 281. 303 pages.

2. Uva, Richard H, Joseph C. Neal, and Joseph M. DiTomaso. 1997. Weeds of the Northeast. Cornell University Press, Ithaca, NY 14850. 397 pages.

QK/118/.U93/1997