Polystichum imbricans (D.C. Eaton) D.H. Wagner subsp. imbricans
narrow-leaved sword fern (narrowleaf swordfern)
Dryopteridaceae (Wood Fern family)

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #3922)


E-Flora BC Static Map

Distribution of Polystichum imbricans subsp. imbricans
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Species Information

Evergreen perennial arising from a short, stout rhizome.
Lanceolate, 20-70 cm long, 3-15 cm wide, 1-pinnate; pinnae oblong, overlapping and twisted 45degree or more to the plane of blade, with spreading teeth.

SourceThe Illustrated Flora of British Columbia


If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and Range

Dry rock outcrops, forest margins and open forests in the lowland zone; infrequent in BC on SE Vancouver Island, adjacent mainland coast, and lower Fraser River Valley; S to CA.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Polystichum munitum subsp. imbricans (D.C. Eaton) Munz
Polystichum munitum subsp. nudatum (D.C. Eaton) Ewan
Polystichum munitum var. imbricans (D.C. Eaton) Maxon