Diphasiastrum alpinum (L.) Holub
alpine club-moss
Lycopodiaceae (Club-moss family)

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #25440)


E-Flora BC Static Map

Distribution of Diphasiastrum alpinum
Click here to view the full interactive map and legend

Species Information

Evergreen perennial from horizontal stems about 3 mm wide, on the soil (or rock) surface, or shallowly buried; upright shoots branched, 5-15 cm tall, bluish-green, with flattened branches.
Leaves on the convex side of the branches and leaves on their edges unstalked, short, triangular, those on the concave sides trowel shaped, bent upright at right angles to their short stalks that are perpendicular to the branches, the leaves bent upright at right angles to the bases.

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 Diphasiastrum alpinum

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)
1753 209 3000
Slope Gradient (%)
23 0 115

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

186 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 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(10), BAFA(77), BWBS(1), CMA(23), ESSF(192), ICH(3), IDF(1), IMA(25), MH(23), MS(1), SBS(2), SWB(24)

Habitat and Range

Open dry to mesic areas in heath and tundra communities in the subalpine and alpine zones; frequent throughout BC, except absent on the Queen Charlotte Islands; circumpolar, N to AK, YT, and NT, E to AB and S to MT, ID, and WA, disjunct to MI, PQ, NB, and NF; Eurasia.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Lycopodium alpinum L.