| Callery pear (Bradford pear) | USDA PLANTS Symbol: PYCA80 U.S. Nativity: Exotic Habit: Hardwood Trees |
| Pyrus calleryana Dcne. |
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Taxonomic Rank: Magnoliopsida: Rosales: Rosaceae |
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| Native Range: China (REHD); China, Vietnam (GRIN); | |
Callery pear, or Bradford pear, is an ornamental, deciduous tree that can grow up to 40 ft. (12.2 m) in height. Some non-sterile cultivars of this species have escaped and are invading natural areas throughout the eastern United States. The leaves are alternate, simple, 2 to 3 in. (5.1-7.6 cm) long, petiolate and shiny with wavy, slightly-toothed margins. The overall shape of the tree is often described as a tear-drop that often spreads out with age. Flowering occurs early in the spring (April to May) before the leaves emerge. The flowers are 1 in. (2.5 cm) wide, showy, malodorous and white. Fruits are round, 0.5 in. (1.3 cm) in diameter and green to brown in color. The “Bradford” variety of pear, which produced sterile fruits, has been widely planted throughout the United States since the early 1900s, but recent cultivars, bred to reduce the tendency of the tree to split in snow or high winds, have produced viable seeds and escaped to invade disturbed areas. |
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Identification, Biology, Control and Management Resources
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| Selected Images from Invasive.org | View All Images at Invasive.org |
 Foliage; Chuck Bargeron, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Bark; Chuck Bargeron, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Twig(s)/Shoot(s); twigs and thorns Nancy Loewenstein, Auburn University, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); November James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); Chuck Bargeron, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Failure; Showing split tree, to correct this new hybrids were developed, these were not sterile. Rich Mason, US Fish and Wildlife Service, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); November James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Twig(s)/Shoot(s); November James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Tree in flower Dan Tenaglia, Missouriplants.com, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); in flower James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); in flower James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Seedling(s); David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); in flower James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Trees in flower Britt Slattery, US Fish and Wildlife Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); flower petals on ground David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); tree splitting David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
| EDDMapS Distribution: This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org |
 State(s) Where Reported invasive. Based on state level agency and organization lists of invasive plants from WeedUS database. |
| U.S. National Parks where reported invasive: |
| Stones River National Battlefield (Tennessee) |
