Pyrus calleryana

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Pyrus calleryana

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Pyrus calleryana callery pear blossom

Bradford 9288

2014-11-02 14 11 35 Bradford Pear during autumn along Hunters Ridge Drive in Hopewell Township, New Jersey

2014-11-02 12 22 20 Bradford Pear foliage during autumn along Scotch Road in Ewing, New Jersey

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CalleryPearC

Pyrus calleryana, commonly known as the Callery pear, is a species of pear native to China and Vietnam. It is a deciduous tree that belongs to the family Rosaceae. The tree is widely cultivated for its ornamental value, particularly for its profuse white spring blossoms and its ability to thrive in a variety of soil conditions.

Description

Pyrus calleryana typically grows to a height of 15 to 20 meters (49 to 66 feet) with a conical to rounded crown. The leaves are oval, glossy green, and measure 4 to 8 cm in length. In autumn, the foliage turns vibrant shades of red, orange, and purple. The tree produces small, hard, and inedible fruits that are about 1 cm in diameter.

Cultivation and Uses

The Callery pear is popular in urban landscaping due to its rapid growth, tolerance to pollution, and resistance to disease. It is often planted along streets and in parks. However, it has become invasive in some regions, outcompeting native vegetation.

Varieties

Several cultivars of Pyrus calleryana have been developed, including:

• 'Bradford' - Known for its symmetrical shape and dense branching.
• 'Chanticleer' - Noted for its narrow, upright form.
• 'Cleveland Select' - Similar to 'Chanticleer' but with a slightly broader crown.

Ecological Impact

While initially valued for its hardiness and aesthetic appeal, Pyrus calleryana has become problematic in some areas. The tree's ability to spread rapidly and form dense thickets has led to its classification as an invasive species in parts of the United States.

Related Species

Pyrus calleryana is related to other species in the genus Pyrus, including:

• Pyrus communis - The common pear, cultivated for its edible fruit.
• Pyrus pyrifolia - The Asian pear, also known for its edible fruit.

See Also

• Invasive species
• Urban forestry
• Ornamental trees