Cryptogramma acrostichoides R. Br.
parsley fern (American rockbrake)
Pteridaceae (Maidenhair Fern family)

Introduction to Vascular Plants


© Val George     (Photo ID #79454)


E-Flora BC Static Map

Distribution of Cryptogramma acrostichoides
Click here to view the full interactive map and legend

Species Information

Evergreen perennial in clumps from a compact rhizome.
Densely tufted, overwintering, the stipes of old leaves persisting at the base; sterile leaves spreading, oblong-triangular, 5-20 cm long, 2- to 3-pinnate, their segments oblong or egg-shaped; fertile leaves erect, narrowly triangular, their segments linear, 3-12 mm long.

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.


Ecological Framework for Cryptogramma acrostichoides

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)
1076 30 2333
Slope Gradient (%)
51 0 200

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

184 2 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 0 7
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

All BEC Zones (# of stations/zone) species was recorded in

AT(8), BWBS(2), CMA(2), CWH(49), ESSF(64), ICH(162), IDF(24), MH(9), MS(29), SBS(13), SWB(1)

Habitat and Range

Dry rocks from the lowland to alpine zones; frequent in coastal BC, infrequent in SC BC; amphiberingian, N to AK, YT and NT, E to ON and S to MI, NM, AZ and CA; E Asia.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Cryptogramma crispa subsp. acrostichoides (R. Br.) Hultén
Cryptogramma crispa subsp. acrostichoides
Cryptogramma crispa var. acrostichoides