Rhododendron lapponicum (L.) Wahlenb.
Lapland rosebay
Ericaceae (Crowberry family)

Introduction to Vascular Plants

Photograph

© Alfred Cook     (Photo ID #8470)


Map

E-Flora BC Static Map

Distribution of Rhododendron lapponicum
Click here to view the full interactive map and legend

Species Information

General:
Dwarf, mat-forming shrub; stems prostrate to ascending, 5-30 cm long.
Leaves:
Alternate, evergreen or tardily deciduous, elliptic-oblong, 0.5-2 cm long, 0.2-0.8 cm wide, thick, scaly-glandular on both surfaces, tips blunt, dark green and wrinkled-looking above, brownish below, margins somewhat rolled under; stalks 2-3 mm long.
Flowers:
Showy, in few-flowered terminal clusters, fragrant; flower stalks 0.3-1.4 cm long, scaly-glandular; corollas deep purple, 8-12 mm long, 5-lobed; calyces persistent, 0.5-1.5 mm long, 5-lobed, fringed, dorsally scaly-glandular; stamens 5-10, filaments purple, glabrous; anthers rather short, oval.
Fruits:
Capsules, egg-shaped, 5-8 mm long, scaly-glandular.

SourceThe Illustrated Flora of British Columbia

Illustration

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.

USDA Species Characteristics

Flower Colour:
Purple
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Yellow
Present over the
Source:  The USDA

Ecology

Ecological Framework for Rhododendron lapponicum

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

Avg

Min

Max

Elevation (metres)
1451 710 1770
Slope Gradient (%)
28 0 64

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

243 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 1 7
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
33
Modal BEC Zone Class
BAFA

All BEC Zones (# of stations/zone) species was recorded in

BAFA(17), BWBS(1), SWB(15)

Habitat and Range

Dry fell-fields and stony slopes in the alpine zone; infrequent in extreme N BC; circumpolar, N to AK, YT, and NT, and E to NF; Eurasia.

SourceThe Illustrated Flora of British Columbia