BugwoodWiki Article

Callery pear (Bradford pear)
Pyrus calleryana Decne.

Overview

Appearance
Bradford pear is a cultivar of Pyrus calleryana. It is a deciduous tree that can grow up to 60 ft. (18 m) in height and 2 ft. (0.6 m) in diameter.
Foliage
The leaves are alternate, simple, 2-3 in. (5.1-7.6 cm) long, petiolate, and shiny with wavy, slightly toothed margins.
Flower
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. It is insect pollinated.
Fruit
Fruits are round, 0.5 in. (1.3 cm) in diameter and green to brown in color.
Ecological Threat
Pyrus calleryana 'Bradford', produce sterile fruits because they do not self-pollinate. They have been widely planted throughout the United States since the early 1900s as an ornamental. New cultivars of Pyrus calleryana were bred to reduce the tree's tendency to split in snow or high winds. The Bradford pear cultivar, other P. calleryana cultivars and P. betulifolia or Asian pear, can hybridize and produce fertile fruit. In addition to this, fertile pear varieties are commonly used as the rootstock when grafting. If the grafted crown is damaged the fertile rootstock can them dominate, producing fertile fruit. These factors and others may have contributed to the trees seeding out into natural areas and becoming an invasive problem.

Resources

Selected Images


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1237072

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
Britt Slattery
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1539081

Callery pear (Bradford pear)
Pyrus calleryana
Flower(s)
James H. Miller
1539087
1539087

Callery pear (Bradford pear)
Pyrus calleryana
Fruit(s)
James H. Miller
1539090
1539090

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
James H. Miller
1539094
1539094

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
James H. Miller
2132022
2132022

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
James H. Miller
2308070
2308070

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
Dan Tenaglia
2308098
2308098

Callery pear (Bradford pear)
Pyrus calleryana
Foliage
Chuck Bargeron
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2308099

Callery pear (Bradford pear)
Pyrus calleryana
Bark
Chuck Bargeron
2308100
2308100

Callery pear (Bradford pear)
Pyrus calleryana
Fruit(s)
Chuck Bargeron
5308066
5308066

Callery pear (Bradford pear)
Pyrus calleryana
Seed(s)
Steve Hurst
5344071
5344071

Callery pear (Bradford pear)
Pyrus calleryana
Infestation
David J. Moorhead
5344075
5344075

Callery pear (Bradford pear)
Pyrus calleryana
Flower(s)
David J. Moorhead
5345056
5345056

Callery pear (Bradford pear)
Pyrus calleryana
Feature(s)
David J. Moorhead
5345063
5345063

Callery pear (Bradford pear)
Pyrus calleryana
Seedling(s)
David J. Moorhead
5345064
5345064

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
David J. Moorhead
5345065
5345065

Callery pear (Bradford pear)
Pyrus calleryana
Tree(s)
David J. Moorhead

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Rosidae
Order: Rosales
Family: Rosaceae
Genus: Pyrus

Other System Links

Plants: PYCA80
GRIN: 30463
ITIS: 504706
NPDN Host: 35423

Categories

Category: Hardwood Trees