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Rogue–Umpqua Divide Wilderness
The Rogue–Umpqua Divide Wilderness is a wilderness area located in the Rogue River – Siskiyou and Umpqua National Forests in the Klamath Mountains of Oregon, United States. It was established by the United States Congress in 1984 and comprises . Topography The Rogue–Umpqua Divide Wilderness is west of Crater Lake National Park along the dividing ridge between the Rogue and Umpqua Rivers. Elevations range from at the summit of Fish Mountain. Volcanic activity created many unique volcanic and sedimentary rock outcrops. Vegetation Most of the Rogue–Umpqua Divide is covered in a dense forest composed of sugar pine, grand fir, mountain hemlock, western white pine, incense cedar, subalpine fir, western redcedar, white fir, ponderosa pine, Douglas-fir, Alaska cedar, shasta red fir, lodgepole pine, pacific silver fir, western hemlock, and whitebark pine. The Acker Divide and Cripple Camp trails lead through large stands of old-growth forests. Recreation Popular recr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas County, Oregon
Douglas County is one of the List of counties in Oregon, 36 counties in the U.S. state of Oregon. As of the 2020 United States census, 2020 census, the population was 111,201. The county seat is Roseburg, Oregon, Roseburg. Oregon Geographic Names, The county is named after Stephen A. Douglas, an American politician who supported Oregon Territory#Gaining Statehood, Oregon statehood. Douglas County comprises the Roseburg, Oregon micropolitan statistical area. In regards to area, Douglas County is the largest county west of the Oregon Cascades. History The area originally was inhabited by the Umpqua people, Umpqua Indians, a grouping of natives who spoke a variety of Penutian and Athabaskan languages. Following the Rogue River Wars in 1856, most of the remaining natives were moved by the government to the Grand Ronde Community, Grand Ronde Indian Reservation. However, seven families of Umpqua hid in the hills, eluding capture for many decades. They are now federally recognized a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old-growth
An old-growth forest or primary forest is a forest that has developed over a long period of time without Disturbance (ecology), disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. One-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitats that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and Canopy (biology), canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitebark Pine
''Pinus albicaulis'', known by the common names whitebark pine, white bark pine, white pine, pitch pine, scrub pine, and creeping pine, is a conifer tree native to the mountains of the western United States and Canada, specifically subalpine areas of the Sierra Nevada, Cascade Range, Pacific Coast Ranges, Rocky Mountains, and Ruby Mountains. It shares the common name "creeping pine" with several other plants. The whitebark pine is typically the highest-elevation pine tree found in these mountain ranges and often marks the tree line. Thus, it is often found as ''krummholz'', trees growing close to the ground that have been dwarfed by exposure. In more favorable conditions, the trees may grow to in height. Identification Whitebark pine is a member of the Pinus classification, white pine group, the ''Pinus'' subgenus ''Strobus'', and the section ''Strobus''; like all members of this group, the leaves (needles) are in fascicle (botany), fascicles (bundles) of five with a deci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Hemlock
''Tsuga heterophylla'', the western hemlock or western hemlock-spruce, is a species of hemlock native to the northwest coast of North America, with its northwestern limit on the Kenai Peninsula, Alaska, and its southeastern limit in northern Sonoma County, California.Farjon, A. (1990). ''Pinaceae. Drawings and Descriptions of the Genera''. Koeltz Scientific Books .Gymnosperm Database''Tsuga heterophylla'' The Latin species name means 'variable leaves'. Description Western hemlock is a large evergreen conifer growing to tall, exceptionally ,Tallest Hemlock, M. D. Vaden, Arborist''Tallest known Hemlock, Tsuga heterophylla''/ref> and with a trunk diameter of up to . It is the largest species of hemlock, with the next largest ( mountain hemlock) reaching a maximum height of . The bark is brown, thin, and furrowed (outwardly appearing similar to that of Douglas-fir). The crown is a very neat broad conic shape in young trees with a strongly drooping lead shoot, and becomes cylindr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Silver Fir
''Abies amabilis'', commonly known as the Pacific silver fir, is a fir native to the Pacific Northwest of North America, occurring in the Pacific Coast Ranges and the Cascade Range. It is also commonly referred to in English as the white fir, red fir, lovely fir, amabilis fir, Cascades fir, or silver fir. Description The tree is a large evergreen conifer growing to , exceptionally tall, and with a trunk diameter of up to , exceptionally . The bark on younger trees is light grey, thin and covered with resin blisters. On older trees, it darkens and develops scales and furrows. The leaves are needle-like, flattened, long and wide by thick, dark green above, and with two white bands of stomata below, and slightly notched at the tip. The leaf arrangement is spiral on the shoot, but with each leaf variably twisted at the base so they lie flat to either side of and above the shoot, with none below the shoot. The shoots are orange-red with dense velvety pubescence. The cones are lon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lodgepole Pine
''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, but is rare in lowland 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 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 are covered with short shoots that are easy to rem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Fir
''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 three varie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Cedar
''Callitropsis nootkatensis'', formerly known as ''Cupressus nootkatensis'' ( syn. ''Xanthocyparis nootkatensis, Chamaecyparis nootkatensis''), is a species of tree in the cypress family native to the coastal regions of northwestern North America. This species goes by many common names including: Nootka cypress, yellow cypress, Alaska cypress, Nootka cedar, yellow cedar, Alaska cedar, and Alaska yellow cedar. The specific epithet ''nootkatensis'' is derived from the species being from the area of Nootka Sound on the west coast of Vancouver Island, Canada. Both locations are named for the older European name Nootka, given the Nuu-chah-nulth First Nation. Description ''Callitropsis nootkatensis'' is an evergreen conifer growing up to tall, exceptionally , with diameters up to . The bark is thin, smooth and purplish when young, turning flaky and gray. The branches are commonly pendulous, with foliage in flat sprays and dark green scale-leaves measuring long. The cones, maturing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas-fir
The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is the tallest tree in the Pinaceae family. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three varieties: coast Douglas-fir (''P. menziesii'' var. ''menziesii''), Rocky Mountain Douglas-fir (''P. menziesii'' var. ''glauca'') and Mexican Douglas-fir (''P. menziesii'' var. ''lindleyana''). Despite its common names, it is not a true fir (genus '' Abies''), spruce (genus '' Picea''), or pine (genus ''Pinus''). It is also not a hemlock; the genus name ''Pseudotsuga'' means "false hemlock". Description Douglas-firs are medium-sized to extremely large evergreen trees, tall (although only coast Douglas-firs reach heights near 100 m) and commonly reach in diameter, although trees with diameters of almost exist. The largest coast Douglas-firs regularly live over 500 years, with the o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponderosa Pine
''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine, is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.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> ''Pinus ponderosa'' grows in various erect forms from British Columbia southward and eastward through 16 western U.S. states and has been introduced in temperate regions of Europe and in New Zealand. It was first documented in modern science in 1826 in eastern Washington near present-day Spokane (of which it is the official city tree). On that occasion, David Douglas misidentified it a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Fir
''Abies concolor'', the white fir, concolor fir, or Colorado fir, is a coniferous tree in the pine family Pinaceae. This tree is native to the mountains of western North America, including the Sierra Nevada and southern Rocky Mountains, and into the isolated mountain ranges of southern Arizona, New Mexico, and Northern Mexico. It naturally occurs at elevations between . It is popular as an ornamental landscaping tree and as a Christmas tree. Description This large evergreen conifer grows best in the central Sierra Nevada of California, where the record specimen was recorded as tall and measured in diameter at breast height (dbh) in Yosemite National Park.American Forestry Association. 1978. National register of big trees. American Forests 84(4):19-47 The typical size of white fir ranges from tall and up to dbh. The largest specimens are found in the central Sierra Nevada, where the largest diameter recorded was found in Sierra National Forest at (1972); the west slope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
