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Betula glandulosa

Common name: Scrub Birch Family: Betulaceae
Author: Michx. Botanical references: 11, 60, 200
Synonyms: Betula glandulifera ((Regel.)Butler.), Betula crenata
Known Hazards: None known
Range: North-western N. America - Newfoundland to Alaska, southwards on mountain ranges.
Habitat: Streambanks, marsh margins, lakes and bogs, also found on alpine slopes[60].
Edibility Rating (1-5): 2Medicinal Rating (1-5):1

Other Possible Synonyms:From various places across the web, may not be correct. See below.
B. exilis[B,P] B. glandulosa var. glandulifera[B,P] B. glandulosa var. hallii[B,P] B. glandulosa var. sibirica[B,P] B. michauxii[B,P] B. nana[B,C,CAL,G,H,HPIC,L,P] B. nana ssp. exilis[B,P] B. nana var. glandulifera[B,P] B. nana var. sibirica[B,P] B. pumila var. glandulifera[B,G,P] B. terrae-novae[B,P]
Other Common Names:From various places around the Web, may not be correct. See below.
Bog Birch [P,FEIS], Dwarf Birch [L], Glandulose Birch [P], Smooth Dwarf Birch [H], Swamp Birch [B],
Epithets:From a Dictionary of Botanical Epithets
glandulosa = glandular
Systematics:From a USDA Plants Database
Order: Fagales. Birch family

Physical Characteristics

A decidious shrub growing to 2m. It is hardy to zone 1 and is frost tender. The scented flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Wind. We rate it 2/5 for edibility and 1/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils, requires well-drained soil and can grow in heavy clay and nutritionally poor soils. The plant prefers acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It requires moist soil.

Habitats and Possible Locations

Woodland, Dappled Shade, Ground Cover.

Edible Uses

Condiment Flowers Leaves.

Young leaves and catkins - raw[172].
The buds and twigs are used as a flavouring in stews[172].

Medicinal Uses

Disclaimer

Antirheumatic Astringent Lithontripic Salve Sedative.

The bark is antirheumatic, astringent, lithontripic, salve and sedative[172].

Other Uses

Ground cover Hair.

The plant is valuable for ground cover[245].
An infusion of the plant is used as a hair conditioner and dandruff treatment[172].

Cultivation details

Succeeds in a well-drained loamy soil in a sheltered position[11, 200]. Grows well in heavy clay soils. Shade tolerant[200].
B. glandulifera, mentioned above as a synonym of this species, might be a separate species in its own right[11, 200].
This species is native to areas with very cold winters and often does not do well in milder zones. It can be excited into premature growth in mild winters and this new growth is susceptible to frost damage[200].
The branches are covered in aromatic glands, and the leaves are pleasantly fragrant when crushed[245].
Hybridizes freely with other members of this genus[50].
This species is closely related to B. nana[11].
Trees are notably susceptible to honey fungus[200].

Propagation

Seed - best sown as soon as it is ripe in a light position in a cold frame[78, 80, 113, 134]. Only just cover the seed and place the pot in a sunny position[78, 80, 134]. Spring sown seed should be surface sown in a sunny position in a cold frame[113, 134]. If the germination is poor, raising the temperature by covering the seed with glass can help[134]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
If you have sufficient seed, it can be sown in an outdoor seedbed, either as soon as it is ripe or in the early spring - do not cover the spring sown seed. Grow the plants on in the seedbed for 2 years before planting them out into their permanent positions in the winter[78, 80, 113, 134].

Scent

Leaves: Fresh
The branches are covered in aromatic glands, and the leaves are pleasantly fragrant when crushed.

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

Web References

References for Betula nana (a possible synonym). References for Betula pumila var. glandulifera (a possible synonym). References for betula nana (a possible synonym).

References for the family Betulaceae.

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[11] Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981
A classic with a wealth of information on the plants, but poor on pictures.

[50] ? Flora Europaea Cambridge University Press 1964
An immense work in 6 volumes (including the index). The standard reference flora for europe, it is very terse though and with very little extra information. Not for the casual reader.

[60] Hitchcock. C. L. Vascular Plants of the Pacific Northwest. University of Washington Press 1955
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.

[78] Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co 1948
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.

[80] McMillan-Browse. P. Hardy Woody Plants from Seed. Grower Books 1985 ISBN 0-901361-21-6
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.

[113] Dirr. M. A. and Heuser. M. W. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press 1987 ISBN 0942375009
A very detailed book on propagating trees. Not for the casual reader.

[134] Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. 1988
Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.

[172] Schofield. J. J. Discovering Wild Plants - Alaska, W. Canada and the Northwest.
A nice guide to some useful plants in that area.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

[245] Genders. R. Scented Flora of the World. Robert Hale. London. 1994 ISBN 0-7090-5440-8
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.


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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
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