_Adiantum pedatum_ L. American maidenhairfern _Asplenium_ L. spleenwort _platyneuron_ (L.) Oakes ebony s. _resiliens_ Kunze blackstem s. _Botrychium virginianum_ (L.) Sw. rattlesnakefern _Camptosorus rhizophyllus_ (L.) Link walkingfern _Cheilanthes feei_ Moore fee lipfern _Cystopteris fragilis_ (L.) Bernh. brittle bladderfern _Dryopteris_ Adans. woodfern _thelypteris_ (L.) Gray marshfern _Equisetum_ L. horsetail; scouringrush _arvense_ L. field h. _hyemale_ L. (including _E. prelatum_ Raf.) scouringrush _laevigatum_ A. Br. (including _E. kansanum_ Schaffn.) smooth h. _Isoëtes butleri_ Engelm. quillwort _Marsilea mucronata_ A. Br. (_M. vestita_ of Gray’s 7th ed., not Hook. & Grev.) pepperwort _Notholaena dealbata_ (Pursh) Kunze cloakfern _Onoclea sensibilis_ L. sensitivefern _Ophioglossum vulgatum_ L. adderstongue _Pellaea atropurpurea_ (L.) Link purple cliffbrake _Polystichum_ Roth hollyfern _acrostichoides_ (Michx.) Schott christmasfern _Pteridium_ Gleditsch bracken _aquilinum_ (L.) Kuhn var. _pubescens_ Underw. western b. var. _latiusculum_ (Desv.) Underw. eastern b. _Woodsia obtusa_ (Spreng.) Torr. common woodsia =OTHER MONOCOTS=