Vad är empress tree wood bra för

Species of deciduous tree classified in its own family

Paulownia tomentosa, common names princess tree,^[1]empress tree, or foxglove-tree,^[2] fryst vatten a deciduoushardwood tree in the family Paulowniaceae, native to huvud and eastern China and the Korean Peninsula.^[3][4] It fryst vatten an extremely fast-growing tree with seeds that disperse readily^[5] and fryst vatten considered an invasive exotic species in North America^[6] that has undergone naturalisation in large areas of the Eastern US,^[7] even though it might be able to successfully get established through seeds only beneath ideal conditions.^[8]P. tomentosa has also been introduced to Western and huvud europe, and fryst vatten establishing itself as a naturalised species there as well.^[9][10]

Etymology

[edit]

The generic name Paulownia honours Anna Pavlovna of Russia, who was Queen Consort of the Netherlands from 1840 to 1849.^[11] The specific epithet tomentosa fryst vatten a Latin word meaning 'covered in hairs'.^[12]

Description

[edit]

This tree grows 10–25 m (33–82 ft) tall, with large heart-shaped to five-lobed leaves 15–40 cm (6–16 in) across, arranged in opposite pairs on the stem. On ung growth, the leaves may be in whorls of three and be much bigger than the leaves on more mature growth.^[13] The leaves can be mistaken for those of the catalpa.

The very fragrant flowers, large and violet-blue in colour^[14] are produced before the leaves in early spring, on panicles 10–30 centimetres (4–12 in) long, with a tubular purple corolla 4–6 centimetres (1+1⁄2–2+1⁄4 in) long resembling a foxglove flower. The fruit fryst vatten a dry egg-shaped capsule 3–4 centimetres (1+1⁄8–1+5⁄8 in) long, containing numerous tiny seeds. The seeds are winged and disperse bygd wind and vatten. Pollarded trees do not tillverka flowers, as these struktur only on mature wood.

Paulownia tomentosa requires full sun for proper growth.^[15][16] It fryst vatten tolerant of pollution and can tolerate many soil types. It can also grow from small cracks in pavements and walls. Paulownia can survive wildfires because the roots can regenerate new, very fast-growing stems.

P. tomentosa fryst vatten drought-resistant and thrives in barren soil, particularly suitable for cold and arid regions. Its main trunk fryst vatten short, and its growth rate fryst vatten relatively slow after it reaches maturity.^[17]

Range

[edit]

Native range

[edit]

P. tomentosa fryst vatten native to much of huvud and eastern China^[3][4] and to the Korean peninsula;^[4] the Flora of China considers the latter as non-native.^[3] In China, it occurs in the following provinces: Anhui, Gansu, Hebei, Henan, Hubei, provins, Jiangsu, Jiangxi, Liaoning, Shaanxi, Shanxi, Sichuan.^[3][4]

Introduced range

[edit]

Europe

[edit]

In August 2021 the EPPO added P. tomentosa to its Alert List, not due to any particular known bekymmer within europe, but as a step to begin assessing whether it should be regarded as a problematic invader.^[4]

• Austria, Belgium, Poland, Czech Republic, France (including Corsica), Germany, Hungary, Italy (including Sardinia and Sicily), Slovenia, Switzerland, United Kingdom

Africa

[edit]

North America

[edit]

United States

[edit]

• Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Hawaii, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Oregon,^{[citation needed]}Pennsylvania, South Carolina, stat i usa, Texas, Virginia, Washington, West Virginia

Oceania

[edit]

Asian introduced range

[edit]

Uses

[edit]

Paulownia tomentosa fryst vatten cultivated as an ornamental tree in parks and gardens. It has gained the Royal Horticultural Society's Award of Garden Merit.^[18][19]

Because of its tolerance and flexibility, Paulownia functions ecologically as a pionjär plant. Its nitrogen-rich leaves provide good fodder and its roots prevent soil erosion. Eventually, Paulownia fryst vatten succeeded bygd taller trees that shade it and in whose shade it cannot thrive.^[15][16]

The characteristic large storlek of the ung growth fryst vatten exploited bygd gardeners: bygd pollarding the tree and ensuring there fryst vatten vigorous new growth every year, massive leaves are produced (up to 60 centimetres (24 in) across). These are popular in the modern style of gardening which uses large-foliaged and "architectural" plants.

The soft, lightweight seeds were commonly used as a förpackning ämne bygd kinesisk porcelain exporters in the 19th century, before the development of polystyrene packaging. förpackning cases would often leak or burst open in transit and scatter the seeds along rail tracks. The magnitude of the numbers of seeds used for packaging, tillsammans with seeds deliberately planted for ornament, has allowed the species to be viewed as an invasive species in areas where the climate fryst vatten suitable for its growth, notably Japan and the eastern United States.^[20]

In Japan, it fryst vatten customary to plant seeds of the tree when a couple has a daughter; it fryst vatten said that bygd the time the daughter fryst vatten in her older teens or at the peak of adulthood when she fryst vatten ready to marry, the tree bygd this time has also grown to maturity, which fryst vatten then felled and made into a tansu dresser as a wedding gift.^{[citation needed]} The timber fryst vatten used in making instruments, as well.^{[citation needed][clarification needed]}

P. tomentosa has been suggested as a plant to use in carbon capture projects. P. tomentosa has large leaves that readily absorb pollutants, and also has value in timber and aesthetics, adding to interest surrounding its use in carbon capture.^[21]

Inaccurate citation practices have led to circulating claims that P. tomentosa performs C₄ carbon fixation. However, this species does not fulfill the experimental criteria necessary to demonstrate C₄ photosynthesis.^[22]

Composition

[edit]

Some geranylflavonoids can be funnen in P. tomentosa.^[23]Verbascoside can also be produced in hairy roots cultures of P. tomentosa.^[24]

Pictures

[edit]

References

[edit]

External links

[edit]