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Betula populifolia

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Kingdom
  
Family
  
Subgenus
  
Betula

Rank
  
Species

Order
  
Genus
  
Betula

Scientific name
  
Betula populifolia

Betula populifolia Betula populifolia gray birch Go Botany

Similar
  
Betula lenta, Betula alleghaniensis, Paper birch, River birch, Populus grandidentata

Betula populifolia


Betula populifolia (gray or grey birch) is a deciduous tree native to North America.

Contents

Betula populifolia from american native nursery


Range

Betula populifolia Gray Birch Betula populifolia

It ranges from southeastern Ontario east to Nova Scotia, and south to Pennsylvania and New Jersey, with disjunct populations in Indiana, Virginia, and North Carolina. It prefers poor, dry upland soils, but is also found in moist mixed woodlands. Living only about 30 years, it is a common pioneer species on abandoned fields and burned areas.

Characteristics

Betula populifolia Elegant Whitespire gray birch trees Betula populifolia 39Whitespire

Gray birch grows quickly to 20 to 30 feet tall and 15 inch trunk diameter, with an irregular open crown of slender branches. The tree often has multiple trunks branching off of an old stump. The leaves are 5-7.5 cm long by 4–6 cm wide, alternately arranged, ovate, and tapering to an elongated tip. They are dark green and glabrous above and paler below, with a coarsely serrated margin. The bark is chalky to grayish white with black triangular patches where branch meets trunk. It is most easily confused for the paper birch (Betula papyrifera) by means of its bark; it is smooth and thin but does not readily exfoliate like paper birch does. The flowers are wind-pollinated catkins 5–8 cm long, the male catkins pendulous and the female catkins erect. The fruit, maturing in autumn, is composed of many tiny winged seeds packed between the catkin bracts.

The wood is medium hard and is used for high grade plywood, furniture, drum shells, spools and firewood.

Betula populifolia Whitespire Senior Birch Betula populifolia 39Whitespire Senior39 in

Like other North American birches, gray birch is highly resistant to the Bronze birch borer (Agrilus anxius). The leaves of the gray birch serve as food for various Lepidoptera, such as the leaf miner moth Cameraria betulivora. Between about 1930 and 1950, many gray birch trees, along with paper birch and yellow birch (Betula alleghaniensis), were affected and killed by birch dieback disease.

Betula populifolia nebulawsimgcomobjNTY2NUY4NUQ2QjVGRTQwREYyREI6Z

Gray birch has been commonly planted as a landscaping tree in southern Pennsylvania and New Jersey as it tolerates heat and humidity better than paper birch and is more resistant to bronze birch borers and leaf miners.

Betula populifolia Online Virtual Flora of Wisconsin Betula populifolia

References

Betula populifolia Wikipedia


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