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Peavy Arboretum
Peavy Arboretum (40 acres) is an arboretum operated by Oregon State University and located on Arboretum Road, Corvallis, Oregon. It is open to the public daily without charge. The arboretum was dedicated by the university in 1926, operated as a Civilian Conservation Corps (CCC) camp from 1933–1942, and reverted to College of Forestry management in 1964. While the CCC was active, they planted trees, expanded the nursery, constructed Cronemiller Lake, and built roads, trails, and firebreaks. Plants Today the arboretum includes a variety of native and exotic woody plants, including: *''Abies alba'' *'' Abies bracteata'' *''Abies cephalonica'' *''Abies cilicica'' *''Abies concolor'' *''Abies grandis'' *''Abies lasiocarpa'' *''Abies magnifica'' *''Abies magnifica'' var. ''shastensis'' *''Abies pinsapo'' *''Abies procera'' *'' Acer grosseri'' *''Acer macrophyllum'' *'' Acer platanoides'' *'' Acer saccharum'' *''Aesculus'' sp. *''Alnus incana'' *''Alnus japonica'' *''Alnus rhombifolia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arboretum
An arboretum (plural: arboreta) in a general sense is a botanical collection composed exclusively of trees of a variety of species. Originally mostly created as a section in a larger garden or park for specimens of mostly non-local species, many modern arboreta are in botanical gardens as living collections of woody plants and is intended at least in part for scientific study. In Latin, an ''arboretum'' is a place planted with trees, not necessarily in this specific sense, and "arboretum" as an English word is first recorded used by John Claudius Loudon in 1833 in ''The Gardener's Magazine'', but the concept was already long-established by then. An arboretum specializing in growing conifers is known as a pinetum. Other specialist arboreta include saliceta (willows), populeta (Populus, poplar), and querceta (oaks). Related collections include a fruticetum, from the Latin ''frutex'', meaning ''shrub'', much more often a shrubbery, and a viticetum (from the Latin ''vitis,'' meani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acer Macrophyllum
''Acer macrophyllum'', the bigleaf maple or Oregon maple, is a large deciduous tree in the genus '' Acer''. It is native to western North America, mostly near the Pacific coast, from southernmost Alaska to southern California. Some stands are also found inland in the foothills of the Sierra Nevada of central California, and a tiny population occurs in central Idaho. Description Bigleaf maple can grow up to tall, but more commonly reaches tall and . The species' current national champion for size is located in Lane County, Oregon. It is tall with a crown spread of , with an average diameter at breast height (dbh) of about . The previous national champion is located in Marion, Oregon, and is tall with a crown spread of , with an average dbh of about . The bark is gray brown, darkening and developing ridges with age. The bigleaf maple has the largest leaves of any maple, typically across with five deeply incised palmate lobes, with the largest running to . The stems are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berberis Nervosa
''Mahonia nervosa'', commonly known as dwarf Oregon-grape, Cascade barberry, Cascade Oregon-grape, or dull Oregon-grape, is a flowering plant native to the northwest coast of North America from southern British Columbia south to central California, with an isolated population inland in northern Idaho. It is especially common in second growth, Douglas-fir or western redcedar forests, making use of those pools of sunlight that intermittently reach the ground. Some authors place the entire genus ''Mahonia'' within the genus ''Berberis''. The plant was collected by Lewis and Clark during their famous expedition to the West before being described for science by Frederick T. Pursh in 1813.''Fl. Amer. Sept.'' (Pursh) 219. 1814 ec. 1813 Collectors: M.Lewis, W.Clark s.n. Description It is an evergreen shrub with short vertical stems, mostly less than , while the leaves reach higher, rarely up to tall on exceptional sites. The leaves are compound and of opposite arrangement, wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berberis Aquifolium
''Berberis aquifolium'', the Oregon grape or holly-leaved barberry, is a species of flowering plant in the family Berberidaceae, native to western North America. It is an evergreen shrub growing tall and wide, with pinnate leaves consisting of spiny leaflets, and dense clusters of yellow flowers in early spring, followed by dark bluish-black berries. The berries are included in the diet of some aboriginal peoples of the Pacific Northwest, and the species is recognized as the state flower of Oregon. Description ''Berberis aquifolium'' grows to tall by wide. The stems and twigs have a thickened, corky appearance. The leaves are pinnate and up to long, comprising spiny leaflets. The leathery leaves resemble those of holly. The yellow flowers are borne in dense clusters long in late spring. Each of the six stamens, terminates in two spreading branches. The six yellow petals are enclosed by six yellow sepals. At the base of the flower are three greenish-yellow bracts, less than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baccharis Piluaris
''Baccharis'' is a genus of perennials and shrubs in the aster family (Asteraceae). They are commonly known as baccharises but sometimes referred to as "brooms", because many members have small thin leaves resembling the true brooms. They are not at all related to these however, but belong to an entirely different lineage of eudicots. '' B. halimifolia'' is commonly known as "groundsel bush", however true groundsels are found in the genus ''Senecio''. ''Baccharis'', with over 500 species, is the largest genus in the Asteraceae. It is found throughout the Americas, distributed mainly in the warmer regions of Brazil, Argentina, Colombia, Chile and Mexico, with ''B. halimifolia'' ranging northward along the Atlantic Coast to the southern tip of Nova Scotia in Canada. If present, the leaves of ''Baccharis'' are borne along the stems in alternate fashion. Flowers are usually white or pinkish. There are no ray flowers, but many disk flowers which are either staminate or pistillate. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctostaphylos Patula
''Arctostaphylos patula'' is a species of manzanita known by the common name greenleaf manzanita. This manzanita is native to western North America where it grows in coniferous forests at moderate to high elevations. Distribution The distribution of ''Arctostaphylos patula'' is one of the most widespread of the manzanitas, spanning most of western North America. Its northern edge is in Washington state, eastern edge in Colorado, western edge the North American coast, and southernmost edge in Baja California, Mexico. It spans in elevation from about 1,500 to 12,000 feet. Description This shrub reaches between 1 and 2 meters in height. It is low to the ground with some of the lower branches rooting in the soil and others extending more outward than upward. The stems are twisting and reddish-brown in color, and shiny due to glandular secretion. The petioles may sometimes have clear-to-glandular hairs. The leaves are oval-shaped to nearly round, and flat, shiny, and smooth. They a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arbutus Menziesii
''Arbutus menziesii'' or Pacific madrone (commonly madrone or madrona in the United States and arbutus in Canada), is a species of broadleaf evergreen tree in the family Ericaceae, native to the western coastal areas of North America, from British Columbia to California. It is nicknamed the "Refrigerator Tree" due to the fact that its bark contains water, and it stays cool in the summer Its waxy evergreen foliage, contorted growth habit, and distinctive flaky bark make it a striking sight in the coastal cliffs and hills where it is abundant. Description ''Arbutus menziesii'' is an evergreen tree about in height, but in the right conditions up to . The trunk is usually about thick. The thin bark is a rich orange-red, and when mature naturally peels away in thin sheets, leaving a greenish, silvery appearance that has a smooth satin sheen. Older trunks are gray-brown near the base. The leaves are thick with a waxy texture, elliptical, long and broad, arranged spirally; they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amelanchier Alnofolia
''Amelanchier'' ( ), also known as shadbush, shadwood or shadblow, serviceberry or sarvisberry (or just sarvis), juneberry, saskatoon, sugarplum, wild-plum or chuckley pear,A Digital Flora of Newfoundland and Labrador Vascular Plants/ref> is a genus of about 20 species of deciduous-leaved shrubs and small trees in the rose family (Rosaceae). ''Amelanchier'' is native to temperate regions of the Northern Hemisphere, growing primarily in early successional habitats. It is most diverse taxonomically in North America, especially in the northeastern United States and adjacent southeastern Canada, and at least one species is native to every U.S. state except Hawaii and to every Canadian province and territory. Two species also occur in Asia, and one in Europe. The taxonomic classification of shadbushes has long perplexed botanists, horticulturalists, and others, as suggested by the range in number of species recognized in the genus, from 6 to 33, in two recent publications. A major so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alnus Rubra
''Alnus rubra'', the red alder, is a deciduous broadleaf tree native to western North America (Alaska, Yukon, British Columbia, Washington, Oregon, California, Idaho and Montana). Description Red alder is the largest species of alder in North America and one of the largest in the world, reaching heights of . The official tallest red alder (as of 1979) stands tall in Clatsop County, Oregon (US). The trunks range from in diameter. The bark is mottled, ashy-gray and smooth, often colonized by white lichen and moss. The leaves are ovate, long, with bluntly serrated edges and a distinct point at the end; the leaf margin is revolute, the very edge being curled under, a diagnostic character which distinguishes it from all other alders. The leaves turn yellow in the autumn before falling. The male flowers are dangling reddish catkins long in early spring. Female flowers occur in clusters of (3) 4–6 (8). Female catkins are erect during anthesis, but otherwise pendant. They develop i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alnus Rhombifolia
''Alnus rhombifolia'', the white alder, is an alder tree native to western North America, from British Columbia and Washington east to western Montana, southeast to the Sierra Nevada, and south through the Peninsular Ranges and Colorado Desert oases in Southern California. It occurs in riparian zone habitats at an altitudes range of .Flora of North America''Alnus rhombifolia''/ref> While not reported in northern Baja California, it has been predicted on the basis of its climatic adaptation to occur there also. ''Alnus rhombifolia'' is primarily found in the chaparral and woodlands, montane, and temperate forests ecoregions. Description ''Alnus rhombifolia'' is a medium-sized deciduous tree growing to (rarely to ) tall, with pale gray bark, smooth on young trees, becoming scaly on old trees. The leaves are alternate, rhombic to narrow elliptic, long and broad, with a finely serrated margin and a rounded to acute apex; they are thinly hairy below.http://calphotos.berkeley.edu/cg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alnus Japonica
''Alnus japonica'', known as Japanese alder, is a species of Alnus Alders are trees comprising the genus ''Alnus'' in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few spec ... from Japan, Korea, Taiwan, eastern China, and Russia. References External links * * japonica Plants described in 1799 Trees of Korea {{Fagales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alnus Incana
''Alnus incana'', the grey alder or speckled alder, is a species of multi-stemmed, shrubby tree in the birch family, with a wide range across the cooler parts of the Northern Hemisphere. Tolerant of wetter soils, it can slowly spread with runners and is a common sight in swamps and wetlands. It is easily distinguished by its small cones, speckled bark and broad leaves. Description It is a small- to medium-sized tree tall with smooth grey bark even in old age, its life span being a maximum of 60 to 100 years. The leaves are matte green, ovoid, long and broad. The flowers are catkins, appearing early in spring before the leaves emerge, the male catkins pendulous and long, the female catkins long and one cm broad when mature in late autumn. The seeds are small, long, and light brown with a narrow encircling wing. The grey alder has a shallow root system, and is marked not only by vigorous production of stump suckers, but also by root suckers, especially in the northern par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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