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
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.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Tree(s); Trees in flower
Britt Slattery, US Fish and Wildlife Service, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
James H. Miller, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
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); 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); Tree in flower
Dan Tenaglia, Missouriplants.com, Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Bark;
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Chuck Bargeron, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Infestation;
David J. Moorhead, University of Georgia, 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

Seedling(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

Tree(s);
David J. Moorhead, University of Georgia, 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.

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U.S. National Parks where reported invasive:
Stones River National Battlefield (Tennessee)



Invasive Listing Sources:
Alabama Invasive Plant Council
Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994.
Eric Ulaszek, U.S. Forest Service, Midewin National Tallgrass Prairie, Illinois
Georgia Exotic Pest Plant Council
Maryland Cooperative Extension Service.  2003. Invasive Plant Control in Maryland. Home and Garden Information Center, Home and Garden Mimeo HG88. 4 pp.
Mid-Atlantic Exotic Pest Plant Council, 2005
Native Plant Society of Oregon, 2008
South Carolina Exotic Pest Plant Council
Tennessee Exotic Pest Plant Council