Betula pumila var. glandulifera L. Regel
low birch (bog birch)
Betulaceae (Birch family)
Introduction to Vascular Plants
low birch (bog birch)
Betulaceae (Birch family)
Introduction to Vascular Plants
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Map
Distribution of Betula pumila var. glandulifera
Click here to view the full interactive map and legend
Species Information
General:
Deciduous shrub, 0.5-3 m tall; twigs densely hairy, slightly glandular.
Leaves:
Alternate, deciduous, thick and leathery in texture, 1-4 cm long, stalks less than 1 cm long, 4 or more lateral veins, with 10 or more coarse teeth on each side.
Flowers:
Male and female flowers in separate catkins 1.5-2 cm long; flowers emerging before or with the leaves; catkins breaking up at maturity.
Fruits:
Nutlets with narrow wings, 1/2 the width of the body of the nutlets.
Notes:
This species apparently hybridizes with B. pendula and B. papyrifera in our area (Brayshaw 1996b).
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Betula pumila var. glandulifera
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)
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) |
1376 | 980 | 1785 |
| Slope
Gradient (%) |
2 | 0 | 15 |
|
Aspect (degrees) |
53 | 15 | 300 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 2 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
24 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BAFA(3), BWBS(3), ESSF(14), MS(1), SWB(3) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Wet to moist bogs, fens, marshes, meadows and seepage slopes in all vegetation zones; frequent throughout BC east of the Coast-Cascade Mountains, rare in extreme SW BC; N to AK, YT and NT, E to PQ, and S to WY and OR.Status Information
Synonyms
Synonyms and Alternate Names:
Betula glandulifera (Regel) Butler
Betula glandulosa var. glandulifera (Regel) Gleason
Betula glandulosa var. hallii (Howell) C.L. Hitchc.
Betula nana var. glandulifera (Regel) B. Boivin
Betula pumila var. glandulifera