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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. It is the national tree of Paraguay, declared as such in the Nº4631 Act of May 10, 2012, 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, squares an ... [...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 differently in each language: 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 English county of C ... [...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 trees in an especially cold autumn/winter or severe dry season (drought). See also * Brevideciduous * Evergreen * Marcescence * Hedera ''Hedera'', commonly called ivy (plural ivies), is a genus of 12–15 species of evergreen climbing or ground-creeping woody plants in the family Araliaceae, native to western, central and southern Europe, Macaronesia, northwestern Africa an ... References Botany {{Botany-stub ... [...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, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a 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 reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handroanthus
''Handroanthus'' is a genus of flowering plants in the family Bignoniaceae.David J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. It consists of 30 species of trees, known in Latin America by the common names poui, pau d'arco, or ipê. The latter sometimes appears as epay or simply ipe (unaccented) in English. The large timber species are sometimes called lapacho or guayacan, but these names are more properly applied to the species '' Handroanthus lapacho'' and ''Handroanthus guayacan'', respectively. The name ''Handroanthus'' was established in 1970,''Handroanthus'' in International Plant Names Index. (see ''External links'' below). but was not generally accepted. In 1992, its species were included in ''Tabebuia'' in the most recent revision of that genus.Alwyn H. Gentry. 1992. "Bignoniaceae: Part II (Tribe Tecomeae)". ''Flora Neotropica'' Monograph 25(part 2):1-150. ''Handroanthus'' was resurrected in 2007 when a compariso ... [...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 necess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vegetative Reproduction
Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or cloning) is any 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. Background 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. While m ... [...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'' (from Anglo-Norman ''tanner'', from Medieval Latin ''tannāre'', from ''tannum'', oak bark) refers to the use of oak and other bark in tanning animal hides into leather. By extension, 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 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 feeling in the mouth following the consumption of unripened fruit, red wine or tea. Likewise, the destruction or modification of tann ... [...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 refers to structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ....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, it is now considered too toxic for use. See also * Hooker reaction R ... [...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. 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 very resistant to weather and sun.López ''et al.'' (1987) It is not ... [...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 The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uruguay River
The Uruguay River ( es, Río Uruguay, ; pt, Rio Uruguai, ) is a major river in South America. It flows from north to south and forms parts of the boundaries of Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of La Mesopotamia from the other two countries. It passes between the states of Santa Catarina and Rio Grande do Sul in Brazil; forms the eastern border of the provinces of Misiones, Corrientes, and Entre Ríos in Argentina; and makes up the western borders of the departments of Artigas, Salto, Paysandú, Río Negro, Soriano, and Colonia in Uruguay. Course The river measures about in length and starts in the Serra do Mar in Brazil, where the Canoas River and the Pelotas River are joined, at about above mean sea level. In this stage the river goes through uneven, broken terrain, forming rapids and falls. Its course through Rio Grande do Sul is not navigable An unusual feature of the Uruguay River is a submerged canyon. This canyon fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
