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Sierra Nevada Upper Montane Forest
The Sierra Nevada upper montane forest is a vegetation type found below the treeline in the United States Sierra Nevada range. It is generally located above the mixed coniferous forest and below the alpine zone. Overstory trees are typically cone shaped to shed the snow. Characteristic trees including lodgepole pine (''Pinus contorta''), Jeffrey pine (''Pinus jeffreyi''), western white pine ('' Pinus monticola'') California red fir (''Abies magnifica''), and Sierra juniper ('' Juniperus grandis''), and typical understory trees and shrubs such as huckleberry oak (''Quercus vaccinifolia ''Quercus vacciniifolia'' (sometimes spelled ''Q. vaccinifolia''), the huckleberry oak, is a member of the ''Protobalanus'' section of genus ''Quercus''. It has evergreen foliage, short styles, very bitter acorns that mature in 18 months, and a ...'') and red heather ('' Phyllodoce breweri''). Environment On the western slopes of the Sierra Nevada range, upper montane vegetation can be found a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Lodgepole On Rock
Big or BIG may refer to: * Big, of great size or degree Film and television * ''Big'' (film), a 1988 fantasy-comedy film starring Tom Hanks * ''Big!'', a Discovery Channel television show * ''Richard Hammond's Big'', a television show presented by Richard Hammond * ''Big'' (TV series), a 2012 South Korean TV series * ''Banana Island Ghost'', a 2017 fantasy action comedy film Music * '' Big: the musical'', a 1996 musical based on the film * Big Records, a record label * ''Big'' (album), a 2007 album by Macy Gray * "Big" (Dead Letter Circus song) * "Big" (Sneaky Sound System song) * "Big" (Rita Ora and Imanbek song) * "Big", a 1990 song by New Fast Automatic Daffodils * "Big", a 2021 song by Jade Eagleson from ''Honkytonk Revival'' *The Notorious B.I.G., an American rapper Places * Allen Army Airfield (IATA code), Alaska, US * BIG, a VOR navigational beacon at London Biggin Hill Airport * Big River (other), various rivers (and other things) * Big Island (disambigua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abies Magnifica
''Abies magnifica'', the red fir or silvertip fir, is a western North American fir, native to the mountains of southwest Oregon and California in the United States. It is a high-elevation tree, typically occurring at elevation, though only rarely reaching tree line. The name red fir derives from the bark color of old trees. Description ''Abies magnifica'' is a large evergreen tree typically up to tall and trunk diameter, rarely to tall and diameter, with a narrow conic crown. The bark on young trees is smooth, grey, and has resin blisters, becoming orange-red, rough and fissured on old trees. The leaves are needle-like, long, glaucous blue-green above and below with strong stomatal bands, and an acute tip. They are arranged spirally on the shoot, but twisted slightly S-shaped to be upcurved above the shoot. The cones are erect, long, yellow-green (occasionally purple), ripening brown and disintegrating to release the winged seeds in fall. Varieties There are two, per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions Of California
An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species. The biodiversity of flora, fauna and ecosystems that characterise an ecoregion tends to be distinct from that of other ecoregions. In theory, biodiversity or conservation ecoregions are relatively large areas of land or water where the probability of encountering different species and communities at any given point remains relatively constant, within an acceptable range of variation (largely undefined at this point). Three caveats are appropriate for all bio-geographic mapping approaches. Firstly, no single bio-geographic framework is optimal for all taxa. Ecoregions reflect the best compromise for as many taxa as possible. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forests Of The Sierra Nevada (United States)
A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' (FRA 2020) found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries (Brazil, Canada, China, Russia, and the United States). The largest share of forests (45 percent) are in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Nevada (U
The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada. The Sierra Nevada is part of the American Cordillera, an almost continuous chain of mountain ranges that forms the western "backbone" of the Americas. The Sierra runs north-south and its width ranges from to across east–west. Notable features include General Sherman, the largest tree in the world by volume; Lake Tahoe, the largest alpine lake in North America; Mount Whitney at , the highest point in the contiguous United States; and Yosemite Valley sculpted by glaciers from one-hundred-million-year-old granite, containing high waterfalls. The Sierra is home to three national parks, twenty wilderness areas, and two national monuments. These areas include Yosemite, Sequoia, and Kings Canyon National Parks; and Devils ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllodoce Breweri
''Phyllodoce breweri'' is a species of flowering plant in the family Ericaceae known by the common names purple mountain heath and Brewer's mountain heather. It is native to California, where it can be found in mountain ranges including the southern Cascade Range, the San Bernardino Mountains, and the Sierra Nevada, its distribution extending into Nevada. It grows in rocky subalpine mountain habitat, such as slopes and meadows. Description ''Phyllodoce breweri'' is a matlike shrub with many short stems lined densely with leathery evergreen needlelike leaves. The inflorescence is a cluster of several flowers toward the ends of the stems, with some flowers occurring below in leaf axils. The bright purple-pink flowers are cup-shaped as the petals are fused except for the very tips, which roll under. At the center of the flower is a yellow ovary and ten long, protruding stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Vaccinifolia
''Quercus vacciniifolia'' (sometimes spelled ''Q. vaccinifolia''), the huckleberry oak, is a member of the ''Protobalanus'' section of genus ''Quercus''. It has evergreen foliage, short styles, very bitter acorns that mature in 18 months, and a woolly acorn shell interior. Description ''Quercus vacciniifolia'' is a shrubby evergreen of the oak family, which grows generally less than tall and spreads horizontally, never becoming a tree. In the field, it is best identified from its clustered terminal buds, which is characteristic of all plants of the genus. Species are more easily identified in the presence of acorns. Acorns of ''Q. vacciniifolia'' mature in 2 years (biennial maturation) after pollination. Flowers and inflorescence characteristics are not used to significant extend in this genera. ''Q. vacciniifolia'' can be easily confused with '' Q. cedrosensis'', which grows in dry chaparrals, such as California-Mexico border south, forests of Baja California an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juniperus Grandis
''Juniperus grandis'', known as Sierra juniper, Sierra western juniper, and western juniper, is a tree or tall shrub that is endemic to the Western United States. It is sometimes considered a variety or subspecies of ''Juniperus occidentalis'', which is also known as western juniper. Description ''Juniperus grandis'' is a medium-sized tree, growing to tall. It has a stout trunk with red-brown bark, growing up to in diameter. The whorled leaves are scale-like and closely appressed. Most plants are dioecious, but about 5–10% are monoecious. Its fleshy and berry-like cones are in diameter. Its pollination period is May and June. The seeds are wingless. Based on dendrochronological evidence from the 2,675-year-old Scofield Juniper, Sierra junipers are the fourth longest-lived tree species after the Great Basin bristlecone pine, alerce and giant sequoia. Juniperus occidentalis australis foliage.jpg, Leaves Juniper berries lush.jpg, Berry-like cones JuniperBark.JPG, Bark Juni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Monticola
Western white pine (''Pinus monticola''), also called silver pine and California mountain pine, is a species of pine in the family Pinaceae. It occurs in mountain ranges of northwestern North America. It is the List of U.S. state trees, state tree of Idaho. Description Western white pine is a large tree, regularly growing to tall. It is a member of the Pinus classification, white pine group, ''Pinus'' subgenus ''Strobus'', and like all members of that group, the leaves ('needles') are in Fascicle (botany), fascicles (bundles) of five, with a deciduous sheath. The needles are finely serrated, and long. The cones, appearing even on young trees, are long and slender, long and broad (closed), opening to broad; the scales are thin and flexible. The seeds are small, long, and have a long slender wing long. The branches are borne in regular Whorl (botany), whorls, produced at the rate of one a year; this is pronounced in narrow, stand-grown trees, while open specimens may have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vegetation Type
Vegetation classification is the process of classifying and mapping the vegetation over an area of the earth's surface. Vegetation classification is often performed by state based agencies as part of land use, resource management, resource and environmental management, environmental management. Many different methods of vegetation classification have been used. In general, there has been a shift from structural classification used by forestry for the mapping of timber resources, to floristic community mapping for biodiversity management. Whereas older forestry-based schemes considered factors such as height, species and density of the woody canopy, floristic community mapping shifts the emphasis onto ecological factors such as climate, soil type and floristic associations. Classification mapping is usually now done using geographic information systems (GIS) software. Classification schemes Following, some important classification schemes. Köppen (1884) Although this scheme is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Jeffreyi
''Pinus jeffreyi'', also known as Jeffrey pine, Jeffrey's pine, yellow pine and black pine, is a North American pine tree. It is mainly found in California, but also in the westernmost part of Nevada, southwestern Oregon, and northern Baja California.Safford, H.D. 2013. Natural Range of Variation (NRV) for yellow pine and mixed conifer forests in the bioregional assessment area, including the Sierra Nevada, southern Cascades, and Modoc and Inyo National Forests. Unpublished report. USDA Forest Service, Pacific Southwest Region, Vallejo, CA/ref> It is named in honor of its botanist documenter John Jeffrey (botanist), John Jeffrey. Description ''Pinus jeffreyi'' is a large coniferous evergreen tree, reaching tall, rarely up to tall, though smaller when growing at or near tree line. The leaves are needle-like, in bundles of three, stout, glaucous gray-green, long. The cones are long, dark purple when immature, ripening pale brown, with thinly woody scales bearing a short, sharp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Contorta
''Pinus contorta'', with the common names lodgepole pine and shore pine, and also known as twisted pine, and contorta pine, is a common tree in western North America. It is common near the ocean shore and in dry montane forests to the subalpine zone, subalpine, but is rare in lowland temperate rainforest, rain forests. Like all pines (member species of the genus ''Pinus''), it is an evergreen conifer. Description Depending on subspecies, ''Pinus contorta'' grows as an evergreen shrub or tree. The shrub form is krummholz and is approximately high. The thin and narrow-crowned tree can grow high and achieve up to in diameter at chest height. The ''murrayana'' subspecies is the tallest. The Crown (botany), crown is rounded and the top of the tree is flattened. In dense forests, the tree has a slim, conical crown. The formation of twin trees is common in some populations in British Columbia. The elastic branches stand upright or overhang and are difficult to break. The branches a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
