Pears are fruits produced and consumed around the world, growing on a tree and harvested in late summer into mid-autumn. The pear tree and shrub are a species of genus Pyrus, in the family Rosaceae, bearing the pomaceous fruit of the same name. Several species of pears are valued for their edible fruit and juices, while others are cultivated as trees.
Pyrus calleryana, also known as the Callery pear or Bradford pear, is a species of pear tree native to China and Vietnam, in the family Rosaceae. It is most commonly known for its cultivar 'Bradford' and its offensive odor, widely planted throughout the United States and increasingly regarded as an invasive species.
The field elm cultivar 'Atinia' , commonly known as the English elm, formerly common elm and horse may, and more lately the Atinian elm was, before the spread of Dutch elm disease, the most common field elm in central southern England, though not native there, and one of the largest and fastest-growing deciduous trees in Europe. R. H. Richens noted that elm populations exist in north-west Spain and northern Portugal, and on the Mediterranean coast of France that "closely resemble the English elm" and appear to be "trees of long standing" in those regions rather than recent introductions. Augustine Henry had earlier noted that the supposed English elms planted extensively in the Royal Park at Aranjuez from the late 16th century onwards, specimens said to have been introduced from England by Philip II and "differing in no respects from the English elm in England", behaved as native trees in Spain. He suggested that the tree "may be a true native of Spain, indigenous in the alluvial plains of the great rivers, now almost completely deforested".
Pyrus communis, the common pear, is a species of pear native to central and eastern Europe, and western Asia.
Ulmus laevisPall., variously known as the European white elm, fluttering elm, spreading elm, stately elm and, in the United States, the Russian elm, is a large deciduous tree native to Europe, from France northeast to southern Finland, east beyond the Urals into Kyrgyzstan and Kazakhstan, and southeast to Bulgaria and the Crimea; there are also disjunct populations in the Caucasus and Spain, the latter now considered a relict population rather than an introduction by man, and possibly the origin of the European population. U. laevis is rare in the UK, although its random distribution, together with the absence of any record of its introduction, has led at least one British authority to consider it native. NB: The epithet 'white' elm commonly used by British foresters alluded to the timber of the wych elm.
Pyrus salicifolia is a species of pear, native to the Middle East. It is widely grown as an ornamental tree, almost always as a pendulous cultivar, and is called by various common names, including willow-leaved pear, weeping pear, and similar. The tree is deciduous and of comparatively small stature, rarely reaching 10–12 meters in height. The crown is rounded. It has pendulous, silvery foliage, superficially similar to a weeping willow. The flowers are large and pure white highlighted with black-tipped stamens although the buds are tipped with red. The small green fruits are inedible, being hard and astringent.
The shipova, scientific name × Pyraria irregularis, synonyms including × Sorbopyrus irregularis, is a hybrid of the European pear and the common whitebeam. It is a small to medium-sized tree growing to 10–18 m tall, with deciduous oval leaves 7–11 cm long and 5–6 cm broad. The fruit is a pome 2.5–3 cm long; it is edible with a sweet, yellowish flesh, which tastes similar to a Nashi pear.
The Arran whitebeams are species of whitebeam endemic to the island of Arran, Ayrshire, Scotland.
The field elm cultivar Ulmus minor 'Stricta', known as Cornish elm, was commonly found in South West England, Brittany, and south-west Ireland, until the arrival of Dutch elm disease in the late 1960s. The origin of Cornish elm in England remains a matter of contention. It is commonly assumed to have been introduced from Brittany. It is also considered possible that the tree may have survived the ice ages on lands to the south of Cornwall long since lost to the sea. Henry thought it "probably native in the south of Ireland". Dr Max Coleman of Royal Botanic Garden Edinburgh, arguing in his 2002 paper on British elms that there was no clear distinction between species and subspecies, suggested that known or suspected clones of Ulmus minor, once cultivated and named, should be treated as cultivars, preferred the designation U. minor 'Stricta' to Ulmus minor var. stricta. The DNA of 'Stricta' has been investigated and the cultivar is now known to be a clone.
Ulmus × hollandica 'Major' is a distinctive cultivar that in England came to be known specifically as theDutch Elm, although all naturally occurring Field Elm Ulmus minor × Wych Elm U. glabra hybrids are loosely termed 'Dutch elm'. It is also known by the cultivar name 'Hollandica'. Nellie Bancroft considered 'Major' either an F2 hybrid or a backcrossing with one of its parents.
Frangula alnus, commonly known as alder buckthorn, glossy buckthorn, or breaking buckthorn, is a tall deciduous shrub in the family Rhamnaceae. Unlike other "buckthorns", alder buckthorn does not have thorns. It is native to Europe, northernmost Africa, and western Asia, from Ireland and Great Britain north to the 68th parallel in Scandinavia, east to central Siberia and Xinjiang in western China, and south to northern Morocco, Turkey, and the Alborz in Iran and the Caucasus Mountains; in the northwest of its range, it is rare and scattered. It is also introduced and naturalised in eastern North America.
Cornwall is the county that forms the tip of the southwestern peninsula of England; this area has a mild and warm climate regulated by the Gulf Stream. The mild climate allows rich plant cover, such as palm trees in the far south and west of the county and in the Isles of Scilly, due to sub-tropical conditions in the summer.
Pyrus pyraster, also called European wild pear, is a species of pear of the family Rosaceae.
Officially Sochut Dendropark named after Edmund Leonowicz, commonly knowns as Stepanavan Dendropark, is an arboretum located near the Gyulagarak village, Lori Province, Armenia. Located around 85 km (53 mi) north of the capital Yerevan, the park was founded in 1931 by Polish engineer-forester Edmund Leonowicz. The arboretum is 35 ha in total of which 17.5 ha consist of natural forest and 15 ha of ornamental trees.
Pyrus boissieriana, the Boissier pear and telka, is a species of Pyrus (pear) native to the Kopet Dag region on the Turkmenistan and Iranian border. In its native locales it is cultivated as a rootstock for domestic pears.
Pyrus bourgaeana, the Iberian pear, is a close relative of Pyrus communis L. The latter was domesticated about 2500 years ago. This small tree is widely distributed across the southern Iberian Peninsula and northern Morocco, where it coexists with four Pyrus species: P. communis L., P. cordata Dew., P. spinosa Forssk, and P. nivalis Jacq. Characteristics to discriminate these species are the width of fruit peduncle, petal size, leaf width and petiole length served to the taxa.
Pyrus syriaca is a deciduous tree in the Rosaceae family. It is referred to by the common name Syrian pear. It is the only pear species which grows in the wild in Lebanon, Turkey, Syria and Israel.
Reverend Canon Arthur Townshend Boscawen was a British Rector of Ludgvan in Cornwall, England, and a recreational and commercial horticulturalist who introduced the anemone as a commercial crop to Cornwall.
Pyrus phaeocarpa, the dusky pear or orange pear, is a species of flowering plant in the family Rosaceae, native to the Loess Plateau of northern China. A wide tree reaching at most 7–8 m (23–26 ft) in height, it is hardy to USDA zone 5, or perhaps even zone 4. Its small yellow to brown fruit are edible, and its Autumn foliage is bright orange to orange-red, giving it good potential as an ornamental. Its chloroplast genome shows that it is closely related to Pyrus pashia, the wild Himalayan pear, and it is suspected to be a hybrid of P. betulifolia, the birchleaf pear, P. pyrifolia, the apple pear, and P. ussuriensis, the Manchurian pear.
