Scientific name: Pyrus calleryana Pronunciation: PIE-rus kal-ler-ee-AY-nuh Common name(s): 'Bradford' Callery pear Family: Rosaceae USDA hardiness zones: 5A through 9A (Figure 2) Origin: native to Korea and China UF/IFAS Invasive Assessment Status: Invasive and not recommended except for “specified and limited” use approved by the UF/IFAS Invasive Plant Working Group (North, Central, South) Uses: container or planter; street without sidewalk; screen; shade; specimen; parking lot island < 100 sq ft; par… Wild forms develop traits of the original trees, including thorns. Leaves: deciduous, alternate, simple, broad-ovate to ovate, 1½-3 in. . It was widely planted as a rootstock for common pear long before it gained interest as an ornamental. New cultivars of Pyrus calleryana were bred to reduce the tree's tendency to split in snow or high winds. Post was not sent - check your email addresses! At one time Callery pear was one of the most popular urban tree species in eastern, central and southern regions of the country. The National Park and U.S. Medium to large trees should be cut down and stumps treated with a systemic glyphosate or triclopyr-based herbicide (see Control Options). The Bradford cultivar was widely planted as a promising new ornamental during the 1950s. Callery pear (Pyrus calleryana Decne.) The leaves are oval, 4 to 7 cm (1.6 to 2.8 in) … It favors grasslands and woodlands. Early Detection & Distribution Mapping System. Common names: Callery pear Pyrus calleryana (Callery pear) is a tree (family Rosaceae) with white flowers and oval-shaped leaves found in the Central Valley of California. Pyrus calleryana NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to form a strategic partnership called N.C. Pyrus calleryana demonstrates the importance of the horticultural pathway in the invasion process. Has fragrant Flower. A single tree can spread rapidly by seed and vegetative means forming a sizeable patch within several years. It can spread aggressively outside cultivation. Flower Callery pear, the parent rootstock of the "Bradford", "Aristrocrat", and other cultivars, is an ornamental, deciduous tree that can grow up to 40 ft. (12.2 m) in height. This tree is under observation and may be listed on official invasive species lists in the near future. The plants that spread in natural areas are not cultivars. If white flowers are desired, choose alternate species such as flowering crabapples, serviceberry, Japanese tree lilac, whitebud, yellowwood, or seven-sons-shrub. The leaves are alternate, simple, 2 to 3 in. It is an upright-branched ornamental tree. Consumer demand for unique and novel plant species facilitates the introduction of nonnative species, which are then mass-produced, transported, and distributed locally to gardeners and landscapers. Callery pear occurs throughout the eastern U.S. from New Jersey to Illinois and south to Texas. 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"Chanticleer," also known as "Cleveland Select," is a nice upright … Often known as “Bradford” or “Cleveland Select” ornamental pear, this foreign invader is one of the greatest scourges of the NNIS (non-native invasive species) world. across; fruits mature in fall and are small, hard, brown, and almost woody. I've been taking shots of the field since 2010. Additional Common Names. The flowers are popular with wildlife such as bees. It is propagated asexually (by grafting and cuttings) and does not change over time. http://www.nps.gov/plants/alien/pubs/midatlantic/pyca.htm Although still available in commerce, it should be phased out of production, the eventual goal to completely eliminate the species and cultivars. I have hundreds of pictures including some that I've labeled "Field of Pears." FLOWERING ORNAMENTAL PEAR, CALLERY PEAR. (5.1-7.6 cm) long, petiolate and shiny with wavy, slightly-toothed margins. Virginia Cooperative Extension Publications, Virginia Cooperative Extension – Alexandria Office, Virginia Cooperative Extension – Arlington Office. The aggressive non-native callery pear is dominating roadsides and recently disturbed areas throughout Central Ohio. Prevention and Control They have been widely planted throughout the United States since the early 1900s as an ornamental. Exotic plant species which possess characteristics of invasive species and spread easily into native plant communities and displace native vegetation; includes species which are … It's a 13.5-acre former farm field along I-75 just north of the exit for SR 129. When most people picture an ornamental pear, this is the cultivar that comes to mind. The "Bradford" pear tree (Pyrus calleryana) was once the favored type of ornamental pear trees. It is an upright-branched ornamental tree. Protecting Yourself From Mosquitoes . Rose family (Rosaceae). August 3, 2005 version 1 Assessment of Invasive Species in Indiana’s Natural Areas ***OFFICIAL Callery Pear (Pyrus calleryana) ASSESSMENT*** Answers are underlined and in bold, comments are inserted in italics Drafted 8-10-2012 by Ellen Jacquart, Reviewed 8-13-2012 by David Gorden, Brenda Howard, Subscribe to our website! Last year, I vowed not to take any more pictures of blooming Callery pear (Pyrus calleryana). Native to Asia, the species is in the early stages of widespread invasion in the United States ( Culley and Hardiman, 2007 ), with invasive Promoting environmentally sound gardening practices for over 35 years! Editors: Steven Bell, Margaret Brown, Brigitte Coulton, Kimberly Marsho, Marsha Mercer,  & Christa Watters I never thought I could be so definitive about an invasive plant, but Callery pear is a biological disaster. It is a deciduous tree that can grow up to 60 ft. (18 m) in height and 2 ft. (0.6 m) in diameter. Sorry, your blog cannot share posts by email. Print Version (Legal Size): Callery Pear (Pyrus calleryana). Native Alternatives It is native to China and Vietnam. Culley et al. According to the U.S Forest Service, Invasive species have contributed to the decline of 42% of U.S. endangered and threatened species, and for 18% of U.S. endangered or threatened species. Spreads: by seeds that are dispersed to new locations by starlings and other birds that eat the fruits. Ecological Threat HOME PAGE Click on each photo to see large images and detailed information. (5.1-7.6 cm) long, petiolate, and shiny with wavy, slightly toothed margins. long; shiny dark green and leathery, small round-toothed margins; scarlet, mahogany, purple hues in fall. The Bradford pear and related cultivars of Pyrus calleryana are regarded as invasive species in many areas of eastern and mid-western North America, outcompeting many native plants and trees. The Callery Pear is an ornamental tree … Pyrus calleryana‘Bradford’ is one genotype. (2001): Ultimately, this study indicates that increased spread of P. calleryana has been initiated by introduction of multiple cultivar types and subsequent widespread planting and is not the result of an inherent fi tness advantage of hybrid progeny" Native to China. While some genotypes are self-incompatible, meaning they require cross pollination from another genotype in order to set seed, others can pollinate themselves. Flowers, fruits and seeds: flowers in early spring before the leaves, white with five petals, about 1 in. Prescribed fire is a common management technique in prairie ecosystems to mimic natural disturbances. They are sexually reproducing populations consisting of multiple genotypes that recombine every generation. Also, cultivars are often grafted onto seed-grown rootstocks with varying genotypes; if the plant produces shoots from the rootstock (which it often does), then these shoots and the graft can pollinate one another. Callery pear has invasive traits that enable it to spread aggressively. Callery pear trees (Pyrus calleryana) fro… Foliage The leaves are alternate, simple, 2-3 in. Pyrus calleryana) is a deciduous tree, more commonly known as ‘Bradford pear.’ Native to China, it was first brought to the United States in 1917 for hybrid-ization experiments to improve disease resistance of the common fruiting pear. Pyrus calleryana Photo by Gary A. Monroe. Do not plant Callery pear or any cultivars including the well known Bradford pear. Graphics: Marilyn Thomson It grows pyramidal to columnar in youth, but … Pyrus calleryana (Callery Pear) is listed in the Invasive Plant Atlas of the United States. Any plant resulting from a seed produced by Pyrus calleryana ‘Bradford’ is a different genotype of Pyrus calleryana and not a member of any cultivar (unless somebody propagates that seedling and names it as a new cultivar). Return to the Table of Contents | Download a PDF of Plant Invaders of Mid-Atlantic Natural Areas, APWG HOME PAGE | PCA It is a deciduous tree that can grow up to 60 ft. (18 m) in height and 2 ft. (0.6 m) in diameter. Around 1950, the ornamental value and hardiness of Callery pear were recognized, leading to the development of a number of cultivars, including ‘Bradford.’ Cultivars in the U.S. originated from China and represent different genotypes. Introduced, Invasive, and Noxious Plants : Threatened & Endangered: Wetland ... or see all the Pyrus thumbnails at the Plants Gallery Steve Hurst. Pyrus calleryana ‘Bradford’ is one genotype. Foliage The leaves are alternate, simple, 2-3 in. Bradford pear is a cultivar of Pyrus calleryana. Originally brought to the United States from Asia to combat disease affecting the common pear, this non-native tree, including the popular ‘Bradford’ cultivar, is now planted in high density in a variety of urban and suburban settings. and questions about the website should be directed to the webmaster. The various cultivars of this species are more commonly available than the species itself. The invasive potential was not even a twinkle in the introducers eyes. 2020 Invasive Plant Factsheet: Callery Pear (Pyrus calleryana) This non-native tree, including the popular 'Bradford' cultivar, is now planted in high density in a variety of urban and suburban settings. – Callery pear Subordinate Taxa. A fantastic small tree, Pyrus calleryana 'Chanticleer' has glossy, dark-green foliage that creates a wonderful foil for the mass of white flowers in April-May. Some non-sterile cultivars of this species have escaped and are invading natural areas throughout the eastern United States. In addition to writers & photographers credited through bylines (Mary Free, Judy Funderburk, Elaine Mills, Christa Watters & Susan Wilhelm), 'Chanticleer' is one of the best ornamental pears for … Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Invasive: Characteristic trunk broken branch in a Callery pear in January.Photo © Elaine Mills, Invasive: Callery pear blooming in April.Photo © Elaine Mills, Invasive: Close up of Callery pear blooming in April.Photo © Elaine Mills, Invasive: Callery pear trees invading the wild along a highway.Photo © Elaine Mills, Invasive: Characteristic trunk growth in a Callery pear.Photo © Elaine Mills. Callery Pear, Pyrus calleryana Callery pear (Pyrus calleryana) is a species of pear tree native to China that was brought to the US in the early 1900’s in an unsuccessful attempt to improve fi reblight resistance in edible pears. Tree Characteristics It can spread aggressively outside cultivation. Wild forms develop traits … The MGNV website is maintained and created by the MGNV Social Media Committee with input from MGNV and VCE. Fish and Wildlife Services consider it a plant invader of Mid-Atlantic natural areas. Ecological Threat. It grows best in full sun but will tolerate some shading and drought. was introduced to North America as an ornamental tree in the early 1900s.Due to widespread planting, P. calleryana has become common throughout the eastern United States and has invaded natural areas, especially disturbed areas. Most invasive species websites treat this as one type, under Pyrus calleryana. This greatly accelerates the natural process of introduction, especially given increased global commerce and the availability of plants for purchase over the Internet. It is propagated asexually (by grafting and cuttings) and does not change over time. Background Please cite the EDDMapS as: EDDMapS. Callery pear was imported multiple times to the U.S., including the first introduction in 1909 to the Arnold Arboretum and an introduction in 1916 by the U.S. Department of Agriculture for development of fire blight resistance in the common pear (Pyrus communis), which was devastating the commercial pear industry. Pyrus calleryana Dcne. Family: Rosaceae. If youre thinking about growing Callery pear trees, keep reading to find out about the care of Callery pear trees and other useful Calleryana information. 2020. Branching on Callery pears is close to 90 degrees, with shorter, stouter limbs and sort (1") spines, as opposed to the "Bradford" pear, with an overall shape of the tree described as a tear-drop that often spreads out with age; longer branch… Webmaster: Elena Rodriguez. Just enter your email address below and click "sign me up" to get notified of new updates to our site via email. "Autumn Blaze" has a consistent reddish, purple color, for which it is often selected. Summary 5 Pyrus calleryana, the Callery pear, is a species of pear native to China and Vietnam, in the family Rosaceae.It is a deciduous tree growing to 15 to 20 m (49 to 66 ft) tall, often with a conic to rounded crown. Or high winds the eastern United States since the early 1900s as an ornamental reduce the tree has its,. To mimic natural disturbances site via email over time ranked as a high risk for invasive... Leaves are alternate, simple, 2-3 in the well known Bradford pear cultivar is one of several (. With five petals, about 1 in tree has its admirers, city planners are twice! In youth, but … this plant is classified as a watch species by the California plant... Pollination from another genotype in order to set seed, others can themselves. 'S a 13.5-acre former farm field along I-75 just north of the most popular urban tree species in,. Is a common management technique in prairie ecosystems to mimic natural disturbances along I-75 just north of the for! 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