River Birch/Shaggy Birch

Betula nigra

Betula nigra, commonly known as river birch, produces small and inconspicuous fruits known as samaras.

Arboretum Location: The Muniment Room

Division: Flowering

Family: Betulaceae

Origins: Eastern United States

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About

River Birch/Shaggy Birch

The river birch, known as Betula nigra, is a deciduous tree native to the eastern United States. It is a distinctive birch species known for its attractive peeling bark, which ranges in colour from salmon-pink to reddish-brown.

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The Appearance

A medium-sized deciduous tree with a rounded crown and distinctive, peeling bark that reveals layers of cream, brown, and orange. The leaves are ovate and serrated.

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The Produce

These samaras are winged seeds that form in clusters, resembling miniature cones.

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The Flowers

Produces small, catkin-like flowers in spring, which are not particularly showy.

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The Leaves

The leaf shape is broadly ovate to diamond-shaped, with a pointed tip and an uneven base.

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The Bark

The bark is shaggy and exfoliating, peeling away in thin, papery layers.

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The Habitat

Prefers moist, well-drained soils and full sun. Commonly found along riverbanks and in wetlands.

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The Ecology

Provides habitat and food for various wildlife, including birds and insects. The roots help stabilize soil and prevent erosion.

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The Culture

Valued for its ornamental bark and often used in landscaping near water features.

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Fun Facts

River Birch is one of the few birches that thrives in warmer climates and is resistant to birch borer.

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