Diphasiastrum complanatum (L.) Holub
Lycopodiaceae (Club-moss family)

Introduction to Vascular Plants


© Bryan Kelly-McArthur     (Photo ID #75166)


E-Flora BC Static Map

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

Species Information

Evergreen perennial from horizontal stems about 2 mm wide, shallowly buried; upright shoots branched several times more or less in one plane, 10-35 cm tall; branches flattened, sometimes darker green on the convex sides and lighter on the concave sides.
Leaves on the convex side and on the edges of the branches triangular, unstalked, those on the concave side reduced and scale-like.

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 complanatum

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)
963 6 2210
Slope Gradient (%)
15 0 100

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

203 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

BAFA(1), BWBS(175), CWH(42), ESSF(184), ICH(243), IDF(18), MH(3), MS(88), SBPS(50), SBS(450), SWB(30)

Habitat and Range

Dry to mesic forests, rocky slopes, sandy openings and clearings, and margins of peat bogs in the lowland, steppe and montane zones; frequent throughout BC, rare on Vancouver Island and Queen Charlotte Islands; circumpolar, N to AK, YT and NT, E to NF and S to NY, MI, MT, and WA; Eurasia, S America.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Lycopodium complanatum L.