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

Athyrium distentifolium Tausch ex Opiz
alpine lady fern
Dryopteridaceae (Wood Fern family)

Introduction to Vascular Plants

General:
Deciduous perennial arising from a short, stout rhizome.

Leaves:
Numerous, upright, narrowly elliptic or lanceolate, 20-70 cm long, 5-25 cm wide, 3-pinnate, ultimate segments oblong, minutely round-toothed.

Notes:
Fuchs (1974) showed that the name, Athyrium alpestre (Hoppe) Ryland is a later homonym of A. alpestre Clairv. and must be rejected.

Source: The Illustrated Flora of British Columbia

Ecological Framework for Athyrium distentifolium

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
Site Information	Avg	Min	Max
Elevation (metres)	1515	46	2289
Slope Gradient (%)	39	2	85
Aspect (degrees) [0 - N; 90 - E; 180 - S; 270 - W]	164	8	290
Soil Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric]	3	0	7
Modal Nutrient Regime Class	A
# of field plots species was recorded in:	14
Modal BEC Zone Class	ESSF
All BEC Zones (# of stations/zone) species was recorded in	AT(1), CMA(1), CWH(2), ESSF(7), ICH(3)
Source: Klinkenberg 2013

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
	S5 (2019)	Yellow	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer.

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