E-Flora BC: Electronic Atlas of the Flora of British Columbia

Polypodium amorphum Suksd.
irregular polypody
Polypodiaceae (Polypody family)

Introduction to Vascular Plants

© Hans Roemer  Email the photographer   (Photo ID #10695)

E-Flora BC Static Map
Distribution of Polypodium amorphum
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Species Information

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Perennial evergreen arising singly or in small clusters along an elongated, scaly rhizome.
Lanceolate, 4-40 cm long, 2-7 cm wide, leathery, oblong, pinnately cleft with broad, rounded sinuses and oblong entire segments with more or less parallel sides; rachis smooth throughout.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to mesic rocks and rock fissures from the lowland to subalpine zones; infrequent in coastal BC and in the Fraser River Canyon; S to OR.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Polypodium amorphum

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 3 239 1792
Slope Gradient (%) 0 39 135
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
23 19 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 7
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BG(1), CDF(47), CWH(16), ICH(1), MH(1), PP(1)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Polypodium montense F.A. Lang

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References