The woods, marshes and swamps of the George Washington Memorial Parkway (GWMP) provide habitat for 28 extant species of ferns and seven other vascular crytograms such as horsetails, quillworts and lycopoid clubmosses. Six additional species of ferns historically documented from GWMP are now belived to be extripated along with the spikemoss, Selaginella rupestris.
Did You Know?
Arlington House was originally built as a memorial to George Washington. Construction began in 1802 and the home was finished in 1818. More...