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Tabebuia Heptaphylla
''Handroanthus heptaphyllus'', commonly referred to as the pink trumpet tree or pink tab, is a Bignoniaceae tree native to tropical and subtropical regions of South America. It grows in the high forest watershed of the Paraná River, Paraguay River and Uruguay River. It has a limited distribution, almost exclusively inhabiting low lands with wet and deep soils, where it forms part of the upper layer of tree cover. Along with all the other species in the ''Handroanthus'' genus, it is the national tree of Paraguay, as proposed by the School of Chemical Sciences at the National University of Asunción in celebration of the bicentenary of Paraguay's independence. Description ''Handroanthus heptaphyllus'' can reach up to 40 m in height. The bark is brown-gray, very rough, with deep cracks in adult specimens. ''H. heptaphyllus'' requires specific light and humidity conditions, and is susceptible to frost when young. The tree is considered decorative, and is frequently used in parks, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
José Mariano Da Conceição Vellozo
José is a predominantly Spanish and Portuguese form of the given name Joseph. While spelled alike, this name is pronounced very differently in each of the two languages: Spanish ; Portuguese (or ). In French, the name ''José'', pronounced , is an old vernacular form of Joseph, which is also in current usage as a given name. José is also commonly used as part of masculine name composites, such as José Manuel, José Maria or Antonio José, and also in female name composites like Maria José or Marie-José. The feminine written form is ''Josée'' as in French. In Netherlandic Dutch, however, ''José'' is a feminine given name and is pronounced ; it may occur as part of name composites like Marie-José or as a feminine first name in its own right; it can also be short for the name ''Josina'' and even a Dutch hypocorism of the name ''Johanna''. In England, Jose is originally a Romano-Celtic surname, and people with this family name can usually be found in, or traced to, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Universidad Nacional De Asunción
The Universidad Nacional de Asunción or Mbo'ehaovusu Tetãgua Paraguaygua, abbreviated UNA, anglicized as, The National University of Asuncion, is a public university founded in San Lorenzo, Paraguay. Founded in 1889, it is the oldest and most traditional university in the country. History and evolution When the university first started, it consisted of only the Faculties of Law, Medicine and Mathematics, and schools of Clerical, Pharmacy and Obstetrics. As of 2015, the UNA had 12 faculties and a number of institutes in 74 careers that take place in different areas of knowledge, offering students the most comprehensive range of vocational training opportunities. The academic community is made up of about 40,000 students and 6,200 teachers. It also has several technology centers and research facilities for the academic community, both for conducting scientific research, and for the development of postgraduate studies, resulting in contributions to society. Organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Paraguay
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only plants that are usable as lumber, or only plants above a specified height. But wider definitions include taller palms, tree ferns, bananas, and bamboos. Trees are not a monophyletic taxonomic group but consist of a wide variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some trees reaching several thousand years old. Trees evolved around 400 million years ago, and it is estimated that there are around three trillion mature trees in the world currently. A tree typically has many secondary branches supported clear of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rootstock
A rootstock is part of a plant, often an underground part, from which new above-ground growth can be produced. It could also be described as a stem with a well developed root system, to which a bud from another plant is grafted. It can refer to a rhizome or underground stem. In grafting, it refers to a plant, sometimes just a stump, which already has an established, healthy root system, onto which a cutting or a bud from another plant is grafted. In some cases, such as vines of grapes and other berries, cuttings may be used for rootstocks, the roots being established in nursery conditions before planting them out. The plant part grafted onto the rootstock is usually called the scion. The scion is the plant that has the properties that propagator desires above ground, including the photosynthetic activity and the fruit or decorative properties. The rootstock is selected for its interaction with the soil, providing the roots and the stem to support the new plant, obtaining the nec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vegetative Reproduction
Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or cloning) is a form of asexual reproduction occurring in plants in which a new plant grows from a fragment or cutting of the parent plant or specialized reproductive structures, which are sometimes called vegetative propagules. Many plants naturally reproduce this way, but it can also be induced artificially. Horticulturists have developed asexual propagation techniques that use vegetative propagules to replicate plants. Success rates and difficulty of propagation vary greatly. Monocotyledons typically lack a vascular cambium, making them more challenging to propagate. Plant propagation Plant propagation is the process of plant reproduction of a species or cultivar, and it can be sexual or asexual. It can happen through the use of vegetative parts of the plants, such as leaves, stems, and roots to produce new plants or through growth from specialized vegetative plant parts. W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tannins
Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' is widely applied to any large polyphenolic compound containing sufficient hydroxyls and other suitable groups (such as carboxyls) to form strong complexes with various macromolecules. The term ''tannin'' (from scientific French ''tannin'', from French ''tan'' "crushed oak bark", ''tanner'' "to tan", cognate with English ''tanning'', Medieval Latin ''tannare'', from Proto-Celtic ''*tannos'' "oak") refers to the abundance of these compounds in oak bark, which was used in tanning animal hides into leather. The tannin compounds are widely distributed in many species of plants, where they play a role in protection from predation (acting as pesticides) and might help in regulating plant growth. The astringency from the tannins is what causes the dry and puckery feelin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapachol
Lapachol is a natural phenolic compound isolated from the bark of the lapacho tree.Record, Samuel J.. "Lapachol" pages 17-19. In: ''Tropical Woods'' (1925). This tree is known botanically as '' Handroanthus impetiginosus'', but was formerly known by various other botanical names such as ''Tabebuia avellanedae''. Lapachol is also found in other species of ''Handroanthus''. Lapachol is usually encountered as a yellow, skin-irritating powder from wood. Chemically, it is a derivative of vitamin K Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K for post-translational modification, post-synthesis modification of certain proteins ....Louis F.Fieser. ''The Scientific Method'' pages 163-191. Reinhold Publishing Corporation, New York, 1964 Once studied as a possible treatment for some types of cancer, the levels of lapachol required for cancer treatment are considered too ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-deciduous
Semi-deciduous or semi-evergreen is a botanical term which refers to plants that lose their foliage for a very short period, when old leaves fall off and new foliage growth is starting. This phenomenon occurs in tropical and sub-tropical woody species, for example in '' Dipteryx odorata''. Semi-deciduous or semi-evergreen may also describe some trees, bushes or plants that normally only lose part of their foliage in autumn/winter or during the dry season, but might lose all their leaves in a manner similar to deciduous In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ... trees in an especially cold autumn/winter or severe dry season (drought). See also * Brevideciduous * Evergreen * Marcescence * Hedera References Botany {{Botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handroanthus Impetiginosus
''Handroanthus impetiginosus'', the pink ipê, pink lapacho or pink trumpet tree, is a tree in the family Bignoniaceae, distributed throughout North, Central and South America, from northern Mexico south to northern Argentina. Along with all the other species in the '' Handroanthus'' genus, it is the national tree of Paraguay. Description It is a rather large deciduous tree, with trunks sometimes reaching in width and in height. Usually a third of that height is trunk, and two thirds are its longer branches. It has a large, globous, but often sparse canopy. The tree has a slow growth rate. Leaves are opposite and petiolate, 2 to 3 inches long, elliptic and lanceolate, with lightly serrated margins and pinnate venation. The leaves are palmately compound with usually 5 leaflets. Its bark is brownish grey, tough and hard to peel. The wood is of a pleasant yellowish colour, barely knotted and very tough and heavy (0,935 kg/dm³). It's rich in tannins and therefore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraguay
Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the Argentina–Paraguay border, south and southwest, Brazil to the Brazil–Paraguay border, east and northeast, and Bolivia to the northwest. It has a population of around 6.1 million, nearly 2.3 million of whom live in the Capital city, capital and largest city of Asunción, and its surrounding metro area. Spanish conquistadores arrived in 1524, and in 1537 established the city of Asunción, the first capital of the Governorate of the Río de la Plata. During the 17th century, Paraguay was the center of Reductions, Jesuit missions, where the native Guaraní people were converted to Christianity and introduced to European culture. After the Suppression of the Society of Jesus, expulsion of the Jesuits from Spanish territories in 1767, Paraguay increasingly became a peripheral colony. Following Independence of Paraguay, independence from Spain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Tree ...
This is a list of countries that have officially designated one or more trees as their national trees. Most species in the list are officially designated. Some species hold only an "unofficial" status. Additionally, the list includes trees that were once official but are no longer, as well as trees recognized as national symbols or for other symbolic roles. National trees See also * National emblem * Floral emblem * List of U.S. State and territory trees References {{DEFAULTSORT:List Of National Trees N Trees In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
