Polystichum andersonii Hopkins
Anderson's hollyfern
Dryopteridaceae (Wood Fern family)
Introduction to Vascular Plants
Anderson's hollyfern
Dryopteridaceae (Wood Fern family)
Introduction to Vascular Plants
Species Information
General:
Perennial with deciduous or overwintering leaves arising from a short stout rhizome.
Leaves:
Broadly lanceolate, 30-100 cm long, 5-30 cm wide, 1-pinnate, with one or several bulbils at the base of upper pinnae; pinnae deeply cut, but their segments attached to the body of the pinnae with a broad base, minutely sawtoothed-spiny with teeth ascending.
Illustration
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Polystichum andersonii
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)
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 |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
547 | 10 | 1411 |
| Slope
Gradient (%) |
23 | 0 | 81 |
|
Aspect (degrees) |
349 | 3 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 3 | 5 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
15 | ||
| Modal
BEC Zone Class |
ICH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(6), ICH(8), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to moist coniferous forests, lava flows and talus scree in the lowland to subalpine zones; frequent in coastal NW BC, infrequent elsewhere; N to AK and S to MT, ID and OR.Status Information
Synonyms
Synonyms and Alternate Names:
Polystichum braunii subsp. andersonii (Hopkins) Calder & Roy L. Taylor