Betula papyrifera - Photographs of flowers and tree trunks. www.science.ubc.ca/~frst111/cgi-bin/db_gallery/species_search.cgi?gen=Betula&spec=papyrifera
Betula papyrifera - Distribution and occurrence; value and use; characteristics; and fire ecology. www.fs.fed.us/database/feis/plants/tree/betpap
