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

Pellaea glabella Mett. ex Kuhn
simple cliff-brake (smooth cliffbrake)
Pteridaceae (Maidenhair Fern family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #25855)

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Distribution of Pellaea glabella
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Species Information

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Evergreen perennial in small clusters from a short, stout rhizome.
Sterile leaves the same as fertile leaves, oblong or triangular in their outline, 5-35 cm long, 2-7 cm wide, 2-pinnate towards the base, 1-pinnate in the upper part; segments leathery, smooth, with recurved margins.
According to the recent treatment of Pellaea by Windham (1993a,b), British Columbia plants of "P. atropurpurea" are treated either as P. gastonyi or P. glabella ssp. simplex.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to mesic crevices of calcareous rocks in the steppe, montane, and subalpine zones; infrequent in C and SC BC; E to AB and S to NM, AZ, NV and WA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Pellaea glabella

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) 1138 1138 1138
Slope Gradient (%) 20 20 20
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
225 225 225
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 0 0
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: IDF(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.

Taxonomic and Nomenclatural Links

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