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

Betula nana subsp. exillis L.
scrub birch
Betulaceae (Birch family)

Introduction to Vascular Plants

Distribution of Betula nana subsp. exillis
Click here to view our interactive map and legend

Details about map content are available here
Click on the map dots to view record details.

Species Information

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

Illustration Source: The Illustrated Flora of British Columbia

General:
Deciduous shrub, 0.3-2 m tall; young twigs densely glandular and distinctly short-hairy.

Leaves:
Alternate, deciduous, oval to round, usually coarsely toothed, thick and leathery in texture, 0.5-3 cm long; leaf stalks less than 1 cm long.

Flowers:
Male and female flowers in separate catkins 1-2.5 cm long; flowers emerging before or with the leaves; catkins breaking up at maturity.

Fruits:
Nutlets with wings relatively narrow, less than half the width of the body of the nutlets.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet to moist bogs, fens, streamsides, marshes, meadows and rocky slopes from the montane to the alpine zones; common throughout BC east of the Coast-Cascade Mountains; N to AK, YT and NT, E to NB and NS, and S to MN, CO and N CA.

Source: The Illustrated Flora of British Columbia

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Native	S5	Yellow	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Taxonomic and Nomenclatural Links

Flora North America treatment for Betulaceae
Flora North America treatment for Betula nana
Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-07-27 5:21:29 AM ]

Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.