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

Cryptogramma cascadensis E.R. Alverson
Cascade parsley fern (Cascade rockbrake)
Pteridaceae (Maidenhair Fern family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #14573)

E-Flora BC Static Map
Distribution of Cryptogramma cascadensis
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Species Information

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Deciduous perennial in clumps from a compact rhizome.
Densely tufted, deciduous, the stipes of old leaves not persisting at the base; sterile leaves spreading, broadly triangular, 5-20 cm long, 2- to 3-pinnate, their segments oblong or egg-shaped, each of them with 4-8 teeth; fertile leaves erect, narrowly triangular, their segments linear, 3-12 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to mesic rocks and rocky scree slopes in the alpine zone; rare in BC (Revelstoke, Cascade Mountains); S to MT, ID and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Cryptogramma cascadensis

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) 30 949 1422
Slope Gradient (%) 0 29 70
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
157 158 160
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 2 5
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: CWH(1), MS(2)


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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General References