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Parthenium
''Parthenium'' is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae. The name ''Parthenium'' is an evolution of the Ancient Greek name παρθένιον (''parthenion''), which referred to ''Tanacetum parthenium''. The name is possibly derived from the Greek word παρθένος (''parthenos'') which means "virgin". Members of the genus are commonly known as feverfew. Notable species include guayule ('' P. argentatum'') which has been used as a rubber substitute, especially during the Second World War; and also '' P. hysterophorus'', a serious invasive species in the Old World. Species These include:Flann, C (ed) 2009+ G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parthenium Hysterophorus
''Parthenium hysterophorus'' is a herbaceous, flowering weed species in the family Asteraceae. It is one of the most common weeds across the globe. It is best known as Santa Maria feverfew, but is also referred to as Santa-Maria, whitetop weed, and famine weed. It is native to the American tropics but has since become an invasive species in East Asia, India, Australia, and parts of Africa. It has become infamous; it is considered one of the most noxious, harmful weeds species. It is known for its ability to reproduce quickly and abundantly, and prefers to grow in nutrient poor habitats. It is allelopathic, which poses several pros and cons that effect ecology. Many methods of control have been evaluated and implemented over time to best assess how to approach the conservation of this species and the ecosystems it affects. Characteristics Physical attributes This plant is described as an erect, annual herb with a branched, trichome covered stem that becomes woody with time. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parthenium Cineraceum
''Parthenium'' is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae. The name ''Parthenium'' is an evolution of the Ancient Greek name παρθένιον (''parthenion''), which referred to ''Tanacetum parthenium''. The name is possibly derived from the Greek word παρθένος (''parthenos'') which means "virgin". Members of the genus are commonly known as feverfew. Notable species include guayule ('' P. argentatum'') which has been used as a rubber substitute, especially during the Second World War; and also '' P. hysterophorus'', a serious invasive species in the Old World. Species These include:Flann, C (ed) 2009+ Gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parthenium Argentatum
''Parthenium argentatum'', commonly known as the guayule ( or , as in Spanish), is a perennial woody shrub in the family Asteraceae that is native to the rangeland area of the Chihuahuan Desert; including the southwestern United States and northern Mexico. It was first documented by J.M. Bigelow in 1852 through the Mexican Boundary Survey and was first described by Asa Gray. Natural rubber, ethanol, non-toxic adhesives, and other specialty chemicals can be extracted from guayule. An alternative source of latex that is hypoallergenic, unlike the normal '' Hevea'' rubber, can also be extracted. While '' Castilla elastica'' was the most widely used rubber source of Mesoamericans in pre-Columbian times, guayule was also used, though less frequently. The name "guayule" derives from the Nahuatl word ''ulli/olli'', "rubber". Description and range Guayule grows in rocky, limestone desert areas in full sun. The plant's outer branches and leaves are covered in fine silvery hairs cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parthenium Alpinum
''Parthenium alpinum'' is a species of flowering plant in the aster family known by the common names alpine feverfew and Wyoming feverfew. It is native to Wyoming, Colorado, and New Mexico in the United States.''Parthenium alpinum''. The Nature Conservancy. This is a small, mat-forming, long-lived perennial herb with gray-green, hairy leaves and solitary . The heads contain whitish or greenish disc florets and a few pistillate ray florets that do not have s. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliantheae
The Heliantheae (sometimes called the sunflower tribe) are the third-largest Tribe (biology), tribe in the sunflower family (Asteraceae). With some 190 genera and nearly 2500 recognized species, only the tribes Senecioneae and Astereae are larger. The name is derived from the genus ''Helianthus'', which is Ancient Greek, Greek for sun flower. Most genera and species are found in North America (particularly in Mexico) and South America. A few genera are pantropical. Most Heliantheae are herbs or shrubs, but some grow to the size of small trees. Leaves are usually trichome, hairy and arranged in opposite pairs. The anthers are usually blackened. The above statements about the size and distribution of the tribe apply to a broad definition of Heliantheae, which was followed throughout the 20th century. Some recent authors break the tribe up into a dozen or so smaller tribes. Uses Commercially important plants in the Heliantheae include sunflower and Jerusalem artichoke. Many gar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteroideae
Asteroideae is a subfamily of the plant family Asteraceae. It contains about 70% of the species of the family. It consists of several tribes, including Astereae, Calenduleae, Eupatorieae, Gnaphalieae, Heliantheae, Senecioneae and Tageteae. Asteroideae contains plants found all over the world, many of which are shrubby. There are about 1,135 genera and 17,200 species within this subfamily; the largest genera by number of species are '' Helichrysum'' (500–600) and '' Artemisia'' (550). Asteroideae is said to date back to approximately 46–36.5 million years ago. Common characteristics This family will often have radiate style heads but some could have discoid or disciform. They contain ray florets that are three lobed and are also considered perfect flower implying that it is bisexual. Many contain stigmatic surfaces that are separated by two marginal bands and terminal sterile appendages with sweeping hairs. Taxonomy This subfamily is composed of 21 tribes that are b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanacetum Parthenium
''Tanacetum parthenium'', known as feverfew, is a flowering plant in the daisy family, Asteraceae. It may be grown as an ornament, and may be identified by its synonyms, ''Chrysanthemum parthenium'' and ''Pyrethrum parthenium''. Having its origin in the Balkans region, it is now distributed worldwide. Although long used in traditional medicine, there is no clinical evidence that it has any therapeutic effects. Description The plant is a herbaceous perennial that grows into a small bush, up to high, with pungently-scented leaves. The leaves are light yellowish green, variously pinnatifid. The conspicuous daisy-like flowers are up to across, borne in lax corymbs. The outer, ray florets have white ligules and the inner, disc florets are yellow and tubular. It spreads rapidly by seed, and will cover a wide area after a few years. The plant produces achene fruit, and grows in stony slopes and river beds. Location and cultivation Feverfew is native to Eurasia, specifical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of Extant taxon, extant species in each family is unknown. The Asteraceae were first described in the year 1740 and given the original name Composita, Compositae. The family is commonly known as the aster, Daisy (flower), daisy, composite, or sunflower family. Most species of Asteraceae are herbaceous plants, and may be Annual plant, annual, Biennial plant, biennial, or Perennial plant, perennial, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions, in a wide variety of habitats. Most occur in Hot desert climate, hot desert and cold or hot Semi-arid climate, semi-desert climates, and they are found on ever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Luis Potosí
San Luis Potosí, officially the Free and Sovereign State of San Luis Potosí, is one of the 32 states which compose the Federal Entities of Mexico. It is divided in 59 municipalities and is named after its capital city, San Luis Potosí. It is located in eastern and central Mexico and is bordered by seven other Mexican states: Nuevo León to the north; Tamaulipas to the north-east; Veracruz to the east; Hidalgo, Querétaro and Guanajuato to the south; and Zacatecas to the north-west. In addition to the capital city, other major cities in the state include Ciudad Valles, Matehuala, Rioverde, and Tamazunchale. History In pre-Columbian times, the territory now occupied by the state of San Luis Potosí contained parts of the cultural areas of Mesoamerica and Aridoamerica. Its northern and western-central areas were inhabited by the Otomi and Chichimeca tribes. These indigenous groups were nomadic hunter-gatherers. Although many indigenous people died during Spanish colon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamaulipas
Tamaulipas, officially the Free and Sovereign State of Tamaulipas, is a state in Mexico; one of the 31 states which, along with Mexico City, comprise the 32 federal entities of Mexico. It is divided into 43 municipalities. It is located in northeast Mexico and is bordered by the states of Nuevo León to the west, San Luis Potosí to the southwest, and Veracruz to the southeast. To the north, it has a stretch of the U.S.–Mexico border with the state of Texas, and to the east it is bordered by the Gulf of Mexico. In addition to the capital city, Ciudad Victoria, the state's largest cities include Reynosa, Matamoros, Nuevo Laredo, Tampico, and Mante. Etymology The name Tamaulipas is derived from ''Tamaholipa'', a Huastec term in which the ''tam-'' prefix signifies "place (where)". No scholarly agreement exists on the meaning of ''holipa'', but "high hills" is a common interpretation. Another explanation of the state name is that it is derived from ''Ta ma ho'lipam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
