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

Juniperus communis L.
common juniper (ground juniper)
Cupressaceae (Cypress family)

Introduction to Vascular Plants

© Ashley Churchill  Email the photographer   (Photo ID #16868)

E-Flora BC Static Map
Distribution of Juniperus communis
Click here to view the full interactive map and legend
Details about map content are available here
New! Click on the map dots to view record details.

Species Information

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



General:
Sprawling, evergreen shrub, 0.5-3.0 m tall; bark very thin, reddish-brown, shredding and scaly.
Leaves:
Needle-like, with whitish channel on upper surface, (5) 7-12 (19) mm long, in whorls of three on stem.
Cones:
Seed cones fleshy, berrylike, egg-shaped to globose, 6-9 mm long, green in first year, ripening in second year to bluish black; pollen and seed cones on separate plants.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Mid Spring
Fruit/Seed characteristics:
Colour: Blue
Present from Summer to Fall
According to the USDA, this species is a known allelopath.
Source:  The USDA

Habitat / Range

Dry slopes and open forests to wet coastal muskeg in the lowland to alpine zones; common throughout BC; circumpolar, N to AK, E to NF and S to CA, AZ, NM, and GA; Eurasia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Juniperus communis

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

Minimum

Average

Maximum

Elevation (metres) 6 1294 2854
Slope Gradient (%) 0 29 244
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 189 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 8
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
5370
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: AT(62), BAFA(27), BG(26), BWBS(204), CMA(17), CWH(99), ESSF(1166), ICH(364), IDF(1161), IMA(15), MH(13), MS(1101), PP(59), SBPS(298), SBS(330), SWB(149)

Climate

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 not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References