western sword fern
western sword fern (Canadian Forest Service, 2007) is a synonym English vernacular name for:
Polystichum imbricans (D.C. Eaton) D.H. Wagner subsp. imbricans , an accepted subspecies name sensu FNA Ed. Comm., 1993.
western sword fern (Canadian Forest Service, 2007) is a synonym English vernacular name for:
Polystichum imbricans (D.C. Eaton) D.H. Wagner subsp. imbricans , an accepted subspecies name sensu FNA Ed. Comm., 1993.