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

Pellaea glabella subsp. simplex Mett. ex Kuhn (Butters) Á. Löve & D. Löve
simple cliff-brake (smooth cliffbrake)
Pteridaceae (Maidenhair Fern family)

Introduction to Vascular Plants

© Bryan Kelly-McArthur  Email the photographer   (Photo ID #81224)

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Distribution of Pellaea glabella subsp. simplex
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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


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

Pellaea atropurpurea var. simplex (Butters) Morton
Pellaea glabella var. simplex Butters
Pellaea occidentalis subsp. simplex (Butters) Gastony
Pellaea suksdorfiana Butters

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References