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

Blechnum spicant (L.) Sm.
deer fern
Blechnaceae (Chain Fern family)

Introduction to Vascular Plants

© Ian Cruickshank  Email the photographer   (Photo ID #23137)

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Distribution of Blechnum spicant
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Deer fern is a perennial evergreen fern species that is circumpolar--although widely disjunct--in distribution (Douglas et al. 1998). In North America, it is found from Alaska south to Idaho and California. In British Columbia, it is abundant in coastal forests where it is found in "mesic to wet forests, peat bogs, streambanks and clearings in the lowland and montane zones" (Douglas et al. 1998). This species is widely used in coastal gardens.

Deer fern has two types of fronds, vegetative and reproductive. The vegetative fronds form an attractive, evergreen rosette of broadly spreading, glossy fronds that hug the ground. Later in the season a set of finer textured, vertical, spore-bearing fronds arise from the centre of this rosette. BC is blessed with beautiful native ferns among which deer fern must surely be included.

Note Author: Gary Lewis, Phoenix Perennials

Species Information

Click on the image below to view an expanded illustration for this species.

Tufted evergreen perennial from a short, thick rhizome.
Dimorphic; sterile leaves evergreen, spreading, lanceolate, 10-60 cm long, 2-10 cm wide, pinnately cleft (regularly deeply lobed); fertile leaves erect, narrowly lanceolate, 20-50 cm long, 1-pinnate with linear segments up to 7 cm long, 1-2 mm wide, withering soon after shedding spores.
Our plants are generally more robust than their European counterpart and are referred by some authors (Love & Love 1966, 1968) to the amphiberingian ssp. nipponicum (Kunze) Love & Love.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to wet forests, peat bogs, streambanks and clearings in the lowland and montane zones; common in coastal BC, infrequent in SE BC; circumpolar, but widely disjunct, N to AK and S to ID and CA; N Africa, Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Blechnum spicant

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) 0 262 2050
Slope Gradient (%) 0 27 350
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 257 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 8
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: CDF(9), CMA(3), CWH(3181), ESSF(1), ICH(24), MH(227)

Ecological Indicator Information

A shade-tolerant, submontane to alpine, circumpolar fem distributed more in Pacific than Cordilleran North America. Occurs in hyper­maritime to maritime subalpine boreal and summer-wet cool mesothermal climates on fresh to very moist, nitrogen-poor soils. Its occurrence decreases with increasing continentality (very frost-sensitive). Scattered to abundant (occasionally dominant) in old-growth coniferous forests on water-receiving sites; sporadic and less vigorous on water-collecting sites. Grows best on well decomposed (greasy) organic materials; on nutrient-rich soils, confined to decaying coniferous wood. Usually associated with Gaultheria shallon, Rhytidiadelphus loreus and Vaccinium alaskaense. An oxylophytic species characteristic of Mor humus forms.

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)


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 subalpine boreal & cool mesothermal.

Synonyms and Alternate Names

Blechnum doodioides
Blechnum spicant subsp. nipponicum auct. non (Kunze) A. Löve & D. Löve
Blechnum spicant var. elongatum (Hook.) B. Boivin
Lomaria spicant (L.) Desv.
Osmunda spicant L.
Struthiopteris spicant (L.) Weiss

Taxonomic and Nomenclatural Links

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