References for Dennstaedtiaceae
Cody, W.J., and C.W. Crompton. 1975. The biology of Canadian weeds: 15. Pteridium aquilinum (L.) Kuhn. Can. J. Plant Sci. 55:1059-1072.
Tryon, R.M. 1941. A revision of the genus Pteridium. Rhodora 43:1-31, 37-67.

Source for the Reference Lists

George W. Douglas, Del Meidinger and Jim Pojar. 1998-2002. Illustrated Flora of British Columbia.