Koelreuteria bipinnata
Encyclopedia
Koelreuteria bipinnata, also known as (Chinese flame tree, Chinese golden rain tree, Bougainvillea golden-rain tree") is a species of Koelreuteria
Koelreuteria
Koelreuteria is a genus of three species in the family Sapindaceae, native to southern and eastern Asia.They are medium-sized deciduous trees growing to 10–20 m tall, with spirally arranged pinnate or bipinnate leaves. The flowers are small and yellow, produced in large branched panicles...

native to Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

, particularly to China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. It is a small to medium-sized deciduous
Deciduous
Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...

 tree
Tree
A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...

 growing between 10–20 meters tall. They are also one of the few trees that bloom in the summer. They can live from 50 to 150 years.

Description

The leaves
Leaf
A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

 are alternate, bipinnately compound leaves; with a ovate shape and a pinnate venation, they have a green color usually and turns yellow in fall, measuring between 5–10 cm long.

The flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s are small and yellow with a touch of red at the base, with four petals, produced in large branched panicles that are 20–50 cm long. They are very showy and have a pleasant fragrance. They flower in the summer from July to August; they are also hermaphrodite which mean they have both male and female organs.

The fruit
Fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 is a three-lobed inflated papery capsule that is 3–6 cm long, containing several hard nut-like seeds that are 5–10 mm diameter with a pink color.

The bark
Bark
Bark is the outermost layers of stems and roots of woody plants. Plants with bark include trees, woody vines and shrubs. Bark refers to all the tissues outside of the vascular cambium and is a nontechnical term. It overlays the wood and consists of the inner bark and the outer bark. The inner...

 is thin and brown, bends down a little as the tree grows, it might break due to poor collar formation, pruning is required to develop a strong structure, and also for the pedestrians and vehicles clearance if necessary. The tree is characterized as a weak wooded tree.

History & Location

The tree is Native to China; its discovery is credited to Pierre d'Incarville, a Jesuit missionary; who sent first seed from China to Russia in 1747. It was classified by Russian botanist Erich Laxmann who named it after Joseph Koelreuter, a contemporary and a professor of natural history at Karlsruhe
Karlsruhe
The City of Karlsruhe is a city in the southwest of Germany, in the state of Baden-Württemberg, located near the French-German border.Karlsruhe was founded in 1715 as Karlsruhe Palace, when Germany was a series of principalities and city states...

. It was later grown in Europe by 1953 and reached America in 1811. Now, They grow mostly in China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

, Korea
Korea
Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

, New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, and some parts of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

(Eastern and Western costs, and Southern States).

How to grow them

They grow in nutritionally poor soil including: clay, sand, well drained, alkaline, loam, they require full sun but not a lot of watering, with a moderate aerosol salt tolerance. It tolerates wind, air pollution, salt, heat, and drought. They grow moderately and are sometimes fast growers. They produce seeds that are blown away and get germinated and this might results in the growing of more trees next to the original one.

Pests and Diseases

The Koelreuteria bipinnata have little to no pests or disease threatens them. The bark of the tree might get affected from a canker that hits some of its areas. Also, coral pink bodies develop on the diseased bark that requires to pull off the infected branches to keep the tree in a good health.

Uses

Koelreuteria bipinnata are commonly used as focal points in landscape design in regions where they thrive, it is often used as a street, highways, parking lots, shade, woodland garden or specimen tree. The seeds are used in beads in necklaces and the flowers are used in getting yellow dye. They are also used in treatments of conjunctivitis and epiphora.

Reference

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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