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Wisteria | |
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Flowering Wisteria sinensis | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Faboideae |
Tribe: | Wisterieae |
Genus: | Wisteria Nutt. (1818), nom. cons. |
Synonyms [1] | |
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Wisteria is a genus of flowering plants in the legume family, Fabaceae (Leguminosae). The genus includes four species of woody twining vines that are native to China, Japan, Korea, Vietnam, southern Canada, the Eastern United States, and north of Iran. They were later introduced to France, Germany and various other countries in Europe. Some species are popular ornamental plants. The genus name is also used as the English name, and may then be spelt 'wistaria'. [2] [3] In some countries in Western and Central Europe, Wisteria is also known by a variant spelling of the genus in which species were formerly placed, Glycine . Examples include the French glycines, the German Glyzinie, and the Polish glicynia.[ citation needed ]
The aquatic flowering plant commonly called wisteria or 'water wisteria' is Hygrophila difformis , in the family Acanthaceae.
Wisterias climb by twining their stems around any available support. W. floribunda (Japanese wisteria) twines clockwise when viewed from above, while W. sinensis (Chinese wisteria) twines counterclockwise. This is an aid in identifying the two most common species of wisteria. [4] They can climb as high as 20 m (66 ft) above the ground and spread out 10 m (33 ft) laterally. The world's largest known wisteria is the Sierra Madre Wisteria in Sierra Madre, California, measuring more than 1 acre (0.40 ha) in size and weighing 250 tons. Planted in 1894, it is of the 'Chinese lavender' variety. [5]
The leaves are alternate, 15 to 35 cm long, pinnate, with 9 to 19 leaflets.
The flowers have drooping racemes that vary in length from species to species. W. frutescens (American wisteria) has the shortest racemes, 5–7 centimetres (2.0–2.8 in). W. floribunda (Japanese wisteria) has the longest racemes, 90 centimetres (35 in) in some varieties and 120 centimetres (47 in) or 200 centimetres (79 in) in some cultivars. [6] [7] [8] The flowers come in a variety of colors, including white, lilac, purple, and pink, and some W. brachybotrys (Silky wisteria) and W. floribunda cultivars have particularly remarkable colors. [9] [7] The flowers are fragrant, and especially cultivars of W. brachybotrys, W. floribunda, and W. sinensis are noted for their sweet and musky scents. [10] [7] Flowering is in spring (just before or as the leaves open) in some Asian species, and in mid to late summer in the American species.
The genus Wisteria was established by Thomas Nuttall in 1818. [11] He based the genus on Wisteria frutescens , previously included in the genus Glycine . Nuttall stated that he named the genus in memory of the American physician and anatomist Caspar Wistar (1761–1818). [12] Both men were living in Philadelphia at the time, where Wistar was a professor in the School of Medicine at the University of Pennsylvania. [13] Questioned about the spelling later, Nuttall said it was for "euphony", but his biographer speculated that it may have something to do with Nuttall's friend Charles Jones Wister Sr., of Grumblethorpe, the grandson of the merchant John Wister. [14] Various sources assert that the naming occurred in Philadelphia. [15] [16] It has been suggested that the Portuguese botanist and geologist José Francisco Corrêa da Serra, who lived in Philadelphia beginning in 1812, four years before his appointment as ambassador of Portugal to the United States, and a friend of Wistar, proposed the name "Wistaria" in his obituary of Wistar. [17]
As the spelling is apparently deliberate, there is no justification for changing the genus name under the International Code of Nomenclature for algae, fungi, and plants. [18]
The genus was previously placed in the tribe Millettieae. Molecular phylogenetic studies from 2000 onwards showed that Wisteria, along with other genera such as Callerya and Afgekia , were related and quite distinct from other members of the Millettieae. [19] [20] A more detailed study in 2019 reached the same conclusion, and moved Wisteria to the expanded tribe Wisterieae. [21]
As of September 2023 [update] , Plants of the World Online accepted four species: [1]
Image | Scientific name | Common Name | Distribution |
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Wisteria brachybotrys Siebold & Zucc. (syn. Wisteria venustaRehder & Wils. [22] [23] ) | Silky wisteria | Japan | |
Wisteria floribunda (Willd.) DC. | Japanese wisteria | Japan | |
Wisteria frutescens (L.) Poir. (syn. Wisteria macrostachys) | American wisteria | United States (Kentucky to Texas, to Florida, as well as Iowa, Michigan, and New York) | |
Wisteria sinensis (Sims) DC. | Chinese wisteria | China (Guangxi, Guizhou, Hebei, Henan, Hubei, Shaanxi, and Yunnan.) |
Wisteria species are used as food by the larvae of some Lepidoptera species including the brown-tail moth.[ citation needed ]
The seeds are produced in pods similar to those of Laburnum, and, like the seeds of that genus, are poisonous. All parts of the plant contain a saponin called wisterin, which is toxic if ingested, and may cause dizziness, confusion, speech problems, nausea, vomiting, stomach pains, diarrhea and collapse. [24] [25] There is debate over whether the concentration outside of the seeds is sufficient to cause poisoning. Wisteria seeds have caused poisoning in children and pets of many countries, producing mild to severe gastroenteritis and other effects. [26] [25] [27]
In North America, W. floribunda (Japanese wisteria) and W. sinensis (Chinese wisteria) are far more popular than other species for their abundance of flowers, clusters of large flowers, variety of flower colors, and fragrance. [7] W. sinensis was brought to the United States for horticultural purposes in 1816, while W. floribunda was introduced around 1830. [28] Because of their hardiness and tendency to escape cultivation, these non-native wisterias are considered invasive species in many parts of the U.S., especially the Southeast, due to their ability to overtake and choke out other native plant species. [28]
W. floribunda (Japanese wisteria), which has the longest racemes of wisteria species, is decorative and has given rise to many cultivars that have won the prestigious Award of Garden Merit. [7] [29]
Wisteria, especially W. sinensis (Chinese wisteria), is very hardy and fast-growing. It can grow in fairly poor-quality soils, but prefers fertile, moist, well-drained soil. It thrives in full sun. It can be propagated via hardwood cutting, softwood cuttings, or seed. However, specimens grown from seed can take decades to bloom; for this reason, gardeners usually grow plants that have been started from rooted cuttings or grafted cultivars known to flower well.[ citation needed ]
Another reason for failure to bloom can be excessive fertilizer (particularly nitrogen). Wisteria has nitrogen fixing capability (provided by Rhizobia bacteria in root nodules), and thus mature plants may benefit from added potassium and phosphate, but not nitrogen. Finally, wisteria can be reluctant to bloom before it has reached maturity. Maturation may require only a few years, as in W. macrostachya (Kentucky wisteria), or nearly twenty, as in W. sinensis. Maturation can be forced by physically abusing the main trunk, root pruning, or drought stress.
Wisteria can grow into a mound when unsupported, but is at its best when allowed to clamber up a tree, pergola, wall, or other supporting structure. W. floribunda (Japanese wisteria) with longer racemes is the best choice to grow along a pergola. W. sinensis (Chinese wisteria) with shorter racemes is the best choice for growing along a wall. [7] Whatever the case, the support must be very sturdy, because mature wisteria can become immensely strong with heavy wrist-thick trunks and stems. These can collapse latticework, crush thin wooden posts, and even strangle large trees. Wisteria allowed to grow on houses can cause damage to gutters, downspouts, and similar structures. Wisteria flowers develop in buds near the base of the previous year's growth, so pruning back side shoots to the basal few buds in early spring can enhance the visibility of the flowers. If it is desired to control the size of the plant, the side shoots can be shortened to between 20 and 40 cm long in midsummer, and back to 10 to 20 centimetres (3.9 to 7.9 in) in the fall. Once the plant is a few years old, a relatively compact, free-flowering form can be achieved by pruning off the new tendrils three times during the growing season in the summer months. The flowers of some varieties are edible, and can even be used to make wine. Others are said to be toxic.[ citation needed ] Careful identification by an expert is strongly recommended before consuming this or any wild plant.
In the United Kingdom, the national collection of wisteria is held by Chris Lane at the Witch Hazel Nursery in Newington, near Sittingbourne in Kent. [30]
Wisteria and their racemes have been widely used in Japan throughout the centuries and were a popular symbol in mon (family crests) and heraldry. [31] Wisteria is one of the five most commonly used motifs in the mon, and there are more than 150 types of wisteria mon. Because of its longevity and fertility, wisteria was considered an auspicious plant and was favored as a mon, and was adopted and popularized by the Fujiwara clan as their mon. [32] [33]
One popular dance in kabuki known as the Fuji Musume (or 'The Wisteria Maiden'), is the sole extant dance of a series of five personifying dances in which a maiden becomes the embodiment of the spirit of wisteria. In the West, both in building materials such as tile, as well as stained glass, wisterias have been used both in realism and stylistically in artistic works and industrial design. [34]
Camellia is a genus of flowering plants in the family Theaceae. They are found in tropical and subtropical areas in eastern and southern Asia, from the Himalayas east to Japan and Indonesia. There are more than 220 described species; almost all are found in southern China and Indochina. Camellias are popular ornamental, tea, and woody-oil plants cultivated worldwide for centuries. Over 26,000 cultivars, with more than 51,000 cultivar names, including synonyms, have been registered or published.
Clematis is a genus of about 380 species within the buttercup family, Ranunculaceae. Their garden hybrids and cultivars have been popular among gardeners, beginning with Clematis 'Jackmanii', a garden staple since 1862; more cultivars are being produced constantly. They are mainly of Chinese and Japanese origin.
A daylily, day lily or ditch-lily is a flowering plant in the genus Hemerocallis, a member of the family Asphodelaceae, subfamily Hemerocallidoideae, native to Asia. Despite the common name, it is not taxonomically classified in the lily genus. Gardening enthusiasts and horticulturists have long bred Hemerocallis species for their attractive flowers; a select few species of the genus have edible petals, while some are extremely toxic. Thousands of cultivars have been registered by the American Daylily Society, the only internationally recognized registrant according to the International Code of Nomenclature for Cultivated Plants. The plants are perennial, bulbous plants, whose common name alludes to its flowers, which typically last about a day.
Pieris is a genus of seven species of shrubs in the flowering plant family Ericaceae, native to mountain regions of eastern and southern Asia, eastern North America and Cuba. Known commonly in North America as andromedas or fetterbushes, they are broad-leaved evergreen shrubs growing to 1–6 metres tall and 3–10 ft (0.9–3.0 m) wide. The leaves are spirally arranged, often appearing to be in whorls at the end of each shoot with bare stretches of shoot below; they are lanceolate-ovate, 2–10 cm (0.8–3.9 in) long and 1.0–3.5 cm (0.4–1.4 in) broad, leathery textured, and with an entire or serrated margin. The young leaves in spring are typically brightly coloured. The flowers, which may have a very appealing honey scent, are bell-shaped, 5–15 mm (0.2–0.6 in) long, white or pink, and arranged in racemes 5–12 cm (2.0–4.7 in) long. The fruit is a woody capsule which splits into five sections to release the numerous small seeds.
Wisteria floribunda, common name Japanese wisteria, is a species of flowering plant in the family Fabaceae, native to Japan. Growing to 9 m (30 ft), Wisteria floribunda is a woody, deciduous twining climber. It was first brought from Japan to the United States in the 1830s. It is a common subject for bonsai, along with Wisteria sinensis.
Wisteria frutescens, commonly known as American wisteria, is a woody, deciduous, perennial climbing vine, one of various wisterias of the family Fabaceae. It is native to the wet forests and stream banks of the southeastern United States, with a range stretching from the states of Virginia to Texas and extending southeast through Florida, also north to Iowa, Michigan, and New York.
Wisteria sinensis, commonly known as the Chinese wisteria, is a species of flowering plant in the pea family, native to China, in the provinces of Guangxi, Guizhou, Hebei, Henan, Hubei, Shaanxi, and Yunnan. Growing 20–30 m (66–98 ft) tall, it is a deciduous vine. It is widely cultivated in temperate regions for its twisting stems and masses of scented flowers in hanging racemes, in spring.
Camellia japonica, known as common camellia, or Japanese camellia, is a species of Camellia, a flowering plant genus in the family Theaceae. There are thousands of cultivars of C. japonica in cultivation, with many colors and forms of flowers. Despite its common name, it is native to China, not Japan. The cultivation of Camellia japonica also started in China. Its widespread cultivation can be traced back to the Song Dynasty, when 15 varieties of Camellia japonica were recorded in literature. It was later introduced to Japan. It grows in forests, at altitudes of around 300–1,100 metres (980–3,600 ft).
Physostegia virginiana, the obedient plant, obedience or false dragonhead, is a species of flowering plant in the mint family, Lamiaceae. It is native to North America, where it is distributed from eastern Canada to northern Mexico. Physostegia are known commonly as obedient plants because a flower pushed to one side will often stay in that position. The name “false dragonhead” refers to the dragonheads of the related Dracocephalum, a genus to which the plant once belonged.
Grevillea alpina is a species of flowering plant in the family Proteaceae. It has several common names, including mountain grevillea, alpine grevillea, and cat's claws. It is endemic to Australia. It is not limited to alpine environments, and in fact is less common at high elevation than low. The species is variable in appearance, with five general forms described: small-flowered, Grampians, Northern Victorian, Goldfields, and Southern Hills forms. It is found in dry forests and woodlands across Victoria and into southern New South Wales. Some forms of the plant are low to the ground, and some become a spreading shrub. The flowers come in many colours, from white to green to shades of red and pink, or a pattern of several colours. The curled flowers are 1 to 3 centimetres in length. It is attractive to nectar-feeding insects and birds.
Gardenia jasminoides, commonly known as gardenia and cape jasmine, is an evergreen flowering plant in the coffee family Rubiaceae. It is native to the subtropical and northern tropical parts of the Far East. Wild plants range from 30 centimetres to 3 metres in height. They have a rounded habit with very dense branches with opposite leaves that are lanceolate-oblong, leathery or gathered in groups on the same node and by a dark green, shiny and slightly waxy surface and prominent veins.
Stephanotis floribunda syn. S. jasminoides, the Madagascar jasmine, waxflower, Hawaiian wedding flower, or bridal wreath is a species of flowering plant in the family Apocynaceae, native to Madagascar. It is a twining, sparsely branched liana that can measure up to 6 m in length.
Rosa 'Wife of Bath', is a pink shrub rose cultivar developed by David C.H. Austin in England in 1969. It was one of his early cultivars and is named after a character from Geoffrey Chaucer's The Canterbury Tales. 'Rosarium Glücksburg' is a rose garden in the park of Schloss Glücksburg in Glücksburg, Germany.
Austrocallerya megasperma, one of several species commonly known as native wisteria, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a woody climber with pinnate leaves and racemes of purple, pea-like flowers.
Lespedeza bicolor is a species of flowering plant in the legume family known by the common names shrubby bushclover, shrub lespedeza, and bicolor lespedeza. It is native to eastern Asia, ranging from southeastern Siberia to eastern China, Mongolia, Korea, and Japan. and it is widely grown as an ornamental plant. In some regions, such as the southeastern United States, it grows in the wild as an introduced and invasive species.
Hardenbergia comptoniana is a species of flowering plant in the pea family, Fabaceae, native to Western Australia. It is known as native wisteria, a name also used for Austrocallerya megasperma. A twining vine, it produces purple flowers in the Southern Hemisphere spring. It is found on sand dunes and sand plains, and in open forest, on sand- or clay-based soils. It is readily cultivated in the garden, where it does best in a part-shaded position.
Camellia taliensis is a small species of evergreen shrub whose leaves and leaf buds are used to produce tea.
Wisteria brachybotrys, the silky wisteria, is a species of flowering plant in the pea family Fabaceae from Japan. Some older references believed it to be of garden origin. It is certainly very widely cultivated in its native Japan, with the white flowered cultivars more widely grown than the pale violet cultivars. It is in fact native to western parts of Honshu and throughout Shikoku and Kyushu, growing in mountain forests and woods from 100 to 900m. It is not at all clear why it is less popular in the west than in Japan.
Wisterieae is a tribe of flowering plants in the bean family Fabaceae. The tribe was first described in 1994 for the sole genus Wisteria, but was greatly expanded in 2019 to include 13 genera, six of which were new. Five had previously been placed in the tribe Millettieae. Members of the tribe are climbers of various kinds. Some, like Wisteria, are cultivated for their flowers.
Sierra Madre Wisteria or The Wistaria Vine is a flowering Wisteria vine shown at the annual Wistaria Festival in Sierra Madre, California. The Wistaria Vine in 1990 was declared by the Guinness Book of World Records to be the largest blossoming plant in the world. The Wistaria vine is named after physician Caspar Wistar (1761–1818) by botanist Thomas Nuttall (1786–1859). The general name for the plant is spelled Wisteria. This single wisteria vine covers over an acre. The Wistaria Vine has over 1.5 million blossoms and weighs over 250 tons. The plant is on private land and open to the public once a year during the Wistaria Festival.
The Art Amateur for February contains the usual profusion of designs for art work, including decorations for a dessert-plate (asters), a double tile (wisteria)...