Athyrium filix-femina subsp. cyclosorum (L.) Roth (Rupr.) C. Chr.
lady fern (subarctic ladyfern)
Dryopteridaceae (Wood Fern family)

Introduction to Vascular Plants


© Jim Riley     (Photo ID #416)


E-Flora BC Static Map

Distribution of Athyrium filix-femina subsp. cyclosorum
Click here to view the full interactive map and legend

Species Information

Deciduous perennial arising from a short, stout rhizome.
Numerous, in vase-like tufts, 30-180 cm long, 10-70 cm wide, broadly lanceolate, broadest in the middle and gradually narrowed both to the base and to the top, 2-pinnate with pinnae divided into numerous ultimate segments.

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

Mesic to wet alluvial forests, glades, streambanks, gullies, slidetracks, meadows, swamps and rock outcrops from the lowland and steppe to alpine zones; common throughout BC; amphiberingian, N to AK, YT and NT, E to NF and S to SD, NM, AZ and CA; E Asia.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Athyrium alpestre var. cyclosorum (Rupr.) T. Moore
Athyrium angustum var. boreale Jennings
Athyrium angustum var. elatius (Link) Butters
Athyrium cyclosorum
Athyrium filix-femina var. californicum Butters
Athyrium filix-femina var. cyclosorum (Rupr.) Ledeb.
Athyrium filix-femina var. sitchense (Rupr.) Ledeb.

Taxonomic Notes

An elegant pale green native fern eventually reaching four feet in height. Deciduous. Easy to grow in shady locations in average to moist soils.

Note Author: Gary Lewis, Phoenix Perennials