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Betula nana L.
Dwarf birch, Swamp birch
Synonyms: Betula glandulosa
USDA Symbol: BENA
USDA Native Status: Native to U.S.
Swamp birch or dwarf birch is a dwarf shrub that has many branches growing along the ground before turning up at the tips. The small, rounded and toothed leaves are dark green on top and paler beneath.
Plant CharacteristicsDuration: Perennial Habit: Shrub Leaf Complexity: Simple Leaf:
Green Autumn Foliage:
yesFruit: Size Class:
Bloom InformationBloom Color: Green
Bloom Time: Apr , May
AK , CA , CO , ID , ME , MT , NH , NY , OR , SD , UT , VT , WA , WY Canada: AB
, NT Native Distribution:
AK to Greenland Native Habitat:
Wet bogs & tundra areas USDA Native Status: L48(N), AK(N), CAN(N),
Growing ConditionsWater Use: Low
Light Requirement: Sun , Part Shade
Soil Moisture: Moist , Wet
CaCO3 Tolerance: Low
Soil Description: Wet, sandy soils.
Conditions Comments: Adapts to drier soils.
PropagationDescription: Sow seeds as soon as ripe in moist, sandy, shaded soil. Germination is facilitated by exposure to light; never plant too deeply. Seedlings can be transplanted at one year.
Seed Collection: Birch seed is collected by picking the catkins while they are still green enough to hold together. They shatter easily and should be put directly into bags.
Seed Treatment: One month cold stratification compensates for light treatment.
Commercially Avail: yes
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Record Modified: 2007-01-01
Research By: TWC Staff