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Persian Gulf Desert And Semi-desert
The Persian Gulf desert and semi-desert ecoregion (WWF ID: PA1323) covers the desert coastal plain of the northwest Persian Gulf, that is, on the northeast Arabian Peninsula, from Kuwait in the north to a small coastal sector in the United Arab Emirates to the southeast. Location and description Bounded on the east by the Persian Gulf, the ecoregion is effectively surrounded on its other sides by the Arabian desert and East Sahero-Arabian xeric shrublands ecoregion. The inland reaches of the ecoregion are a flat extension of the coastal plain, ending at the red-brown dunes of the ad-Dahna Desert and in the south at the edge of the "Empty Quarter" of Saudi Arabia, the Rub' al Khali. The maximum elevation in the ecoregion is . The geology of the plains are marine sediments laid down in the Tertiary (66 to 3 million years ago), when the region was intermittently submerged. Because of limestone, the sands of the ecoregion are whiter than those of the other deserts of the Arabian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vachellia Tortilis
''Vachellia tortilis'', widely known as ''Acacia tortilis'' but now attributed to the genus ''Vachellia'', is the umbrella thorn acacia, also known as ''umbrella thorn'' and Israeli babool, a medium to large canopied tree native to most of Africa, primarily to the savanna and Sahel of Africa (especially the Somali peninsula and Sudan), but also occurring in the Middle East. Distribution and growing conditions ''Vachellia tortilis'' is widespread in Africa, being found in countries like Tunisa, Morocco, Uganda, Angola, Zimbabwe, Djibouti, and Botswana. It tends to grow in areas where temperatures vary from and rainfall is anywhere from about per year. Characteristics In extremely arid conditions, it may occur as a small, wiry bush. It grows up to in height. The tree carries leaves that grow to approx. in length with between 4 and 10 pair of pinnae each with up to 15 pairs of leaflets. Flowers are small and white, highly aromatic, and occur in tight clusters. Seed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hot Desert Climate
The desert climate or arid climate (in the Köppen climate classification ''BWh'' and ''BWk''), is a dry climate sub-type in which there is a severe excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert climates are dry and hold little moisture, quickly evaporating the already little rainfall they receive. Covering 14.2% of earth's land area, hot deserts are the second most common type of climate on earth after the polar climate. There are two variations of a desert climate according to the Köppen climate classification: a hot desert climate (''BWh''), and a cold desert climate (''BWk''). To delineate "hot desert climates" from "cold desert climates", there are three widely used isotherms: most commonly a mean annual temperature of , or sometimes the coldest month's mean temperature of , so that a location with a ''BW'' type climate with the appropriate temperature above whichever isotherm is being used is classified as "hot arid subt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyperus
''Cyperus'' is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions. Description They are annual or perennial plants, mostly aquatic and growing in still or slow-moving water up to deep. The species vary greatly in size, with small species only tall, while others can reach in height. Common names include ''papyrus sedges'', ''flatsedges'', ''nutsedges'', ''umbrella-sedges'' and ''galingales''. The stems are circular in cross-section in some, triangular in others, usually leafless for most of their length, with the slender grass-like leaves at the base of the plant, and in a whorl at the apex of the flowering stems. The flowers are greenish and wind-pollinated; they are produced in clusters among the apical leaves. The seed is a small nutlet. Ecology ''Cyperus'' species are eaten by the larvae of some Lepidoptera species, including '' Chedra microstigma''. They also provide an alternative food source ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stipa Capensis
''Stipa capensis'', the Mediterranean needle-grass, cape rice grass, Mediterranean steppegrass or twisted-awned speargrass, is an annual grass from family Poaceae. It is normally found in the Persian Gulf desert ad semi-desert biome."Persian Gulf Desert and Semi-desert." ''Biomes & Ecosystems'', Vol. 3, Robert Warren Howarth (ed.). Ipswich, MA: Salem Press, pp. 1000-1002. In Persian it is called bahman and is probably the same plant which was used in the Persian festivity of bahmanagān Bahmanagān ( fa, بهمنگان) or BAHMANJANA (Arabicized form of Middle Persian Bahmanagān; forms such as Bahmaṇča ( fa, بهمنجه) or Bahmaṇčena are also found) was a Zoroastrian Iranian festival which was maintained until the Mongol .... References {{Taxonbar, from=Q6519626 capensis Grasses of Asia Flora of Western Asia Plants described in 1794 Flora of Malta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panicum Turgidum
''Panicum turgidum'' is an old world clumping desert bunchgrass of the genus ''Panicum''. It is a plant of arid regions across Africa and Asia, and has been introduced to other parts of the world. Description ''Panicum turgidum'' is a perennial bunchgrass, growing in dense bushes up to tall. The stems are long-jointed, hard and polished, with few leaves, resembling bamboo shoots. Side shoots branch out at the nodes, and the stems bend over and root when the nodes get buried. The inflorescence is a terminal panicle up to long with solitary spikelets some long. The roots are covered in hairs to which fine sand adheres creating a felted appearance. This is a drought- and salt-tolerant species, and used for flour, fodder, thatch and erosion control. Distribution and habitat It is common across the Sahara and Arabia, from Senegal to Pakistan, and known by a number of common names, most widely as Taman, tuman, or thaman in Egypt and Arabia; merkba or markouba in Mauritania and so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calligonum
''Calligonum'' is a genus of plants in the family Polygonaceae with about 80 species across the Mediterranean Sea region, Asia and North America. Description Plants of the genus ''Calligonum'' are shrubs, diffusely but irregularly branched, with flexuous woody branches. Leaves are simple, opposite, nearly sessile, linear or scale-like, sometimes absent or very small, linear or filiform, distinct or united with short membranous ochreae. Flowers are bisexual, solitary or in loose axillary inflorescences. Flowers have persistent, 5-parted perianths not accrescent in fruit, and 10-18 stamens with filaments connate at the base. The ovary is tetragonous. Taxonomy The genus ''Calligonum'' was first published by Carl Linnaeus in 1753. It is placed in the subfamily Polygonoideae, tribe Calligoneae, along with its sister genus, '' Pteropyrum''. Species *'' Calligonum acanthopterum'' I.G.Borshch. *'' Calligonum alatosetosum'' Maassoumi & Kazempour *'' Calligonum aphyllum'' (Pall.) Gü ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloxylon Salicornicum
''Haloxylon salicornicum'' is a shrub or undershrub belonging to the family Amaranthaceae. It is a desert shrub and is found in Israel, Jordan, Egypt, Saudi Arabia, Kuwait, Oman, United Arab Emirates, Afghanistan and Pakistan. Description ''Haloxylon salicornicum'' is an almost leafless, much-branched shrub, growing up to in height. The stems are pale and the plant lacks large foliage-type leaves, having instead minute triangular cup-shaped scales with membranous margins and woolly interiors. The flowers are in short spikes up to long. This plant is found in sandhill A sandhill is a type of ecological community or xeric wildfire-maintained ecosystem. It is not the same as a sand dune. It features very short fire return intervals, one to five years. Without fire, sandhills undergo ecological succession and be ...s, sand ridges and other arid habitats. References {{Taxonbar, from=Q12213686 Amaranthaceae Flora of Saudi Arabia Flora of Pakistan Flora of Afghanistan Taxa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhanterium Epapposum
''Rhanterium epapposum'' is a plant of the family Asteraceae. Native to the deserts of the Arabian Peninsula including Saudi Arabia, Kuwait and Qatar where it is known locally as ''arfaj'' (). The ''arfaj'' consists of a complicated network of branches scattered with small thorny leaves and bright yellow flowers about 1.5 cm wide. The ''arfaj'' flower is also the national flower of Kuwait. It is a bushy shrub approximately 80 cm height. The leaves are small and narrow, and in late spring it will start flowering (April–May). It is considered one of the main desert forage plants for camels and sheep. When cold temperature prevails the plant produces leaves quickly after rainfall. In a few months, the branches and newly formed leaves become vigorous, and the yellow flowers are produced, attracting insects and birds. In the summer, when the earth has dried out, the leaves fall and the branches become naked and lignified with living fibers. In times of stress, these alter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
