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Rhamnus Purshiana
''Frangula purshiana'' (cascara, cascara buckthorn, cascara sagrada, bearberry, and in the Chinook Jargon, chittem stick and chitticum stick; syn. ''Rhamnus purshiana'') is a species of plant in the family Rhamnaceae. It is native to western North America from southern British Columbia south to central California, and eastward to northwestern Montana. The dried bark of cascara was used as a laxative in folk medicine by the indigenous peoples of the Pacific Northwest, and later worldwide in conventional medicines until 2002. Description Cascara is a large shrub or small tree tall, with a trunk 20–50 centimetres (8–20 in) in diameter. The buds have no scales, unique for the northwest region. The thin bark is brownish to silver-gray with light splotching (often, in part, from lichens); the inner bark is smooth and yellowish (turning dark brown with age and/or exposure to sunlight). Cascara bark has an intensely bitter flavor that will remain in the mouth for hou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drupe
In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or '' pyrena'') of hardened endocarp with a seed (''kernel'') inside. These fruits usually develop from a single carpel, and mostly from flowers with superior ovaries (polypyrenous drupes are exceptions). The definitive characteristic of a drupe is that the hard, lignified stone is derived from the ovary wall of the flower. In an aggregate fruit, which is composed of small, individual drupes (such as a raspberry), each individual is termed a drupelet, and may together form an aggregate fruit. Such fruits are often termed ''berries'', although botanists use a different definition of ''berry''. Other fleshy fruits may have a stony enclosure that comes from the seed coat surrounding the seed, but such fruits are not drupes. Flowering plants that produce drupes include coffee, jujube, mango, oli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shade Tolerant
In ecology, shade tolerance is a plant's ability to tolerate low light levels. The term is also used in horticulture and landscaping, although in this context its use is sometimes imprecise, especially in labeling of plants for sale in commercial nurseries. Shade tolerance is a complex, multi-faceted property of plants. Different plant species exhibit different adaptations to shade, and a particular plant can exhibit varying degrees of shade tolerance, or even of requirement for light, depending on its history or stage of development. Basic concepts Except for some parasitic plants, all land plants need sunlight to survive. However, in general, more sunlight does not always make it easier for plants to survive. In direct sunlight, plants face desiccation and exposure to UV rays, and must expend energy producing pigments to block UV light, and waxy coatings to prevent water loss. Plants adapted to shade have the ability to use far-red light (about 730 nm) more effectively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Regime
A fire regime is the pattern, frequency, and intensity of the bushfires and wildfires that prevail in an area over long periods of time. It is an integral part of fire ecology, and renewal for certain types of ecosystems. A fire regime describes the spatial and temporal patterns and ecosystem impacts of fire on the landscape, and provides an integrative approach to identifying the impacts of fire at an ecosystem or landscape level.Morgan, Penelope; Hardy; Swetnam; Rollins; Long (1999)"Mapping fire regimes across time and space: Understanding coarse and fine-scale fire patterns"(PDF). ''International Journal of Wildland Fire''. 10: 329–342 – via Google Scholar. If fires are too frequent, plants may be killed before they have matured, or before they have set sufficient seed to ensure population recovery. If fires are too infrequent, plants may mature, senesce, and die without ever releasing their seed. Fire regimes can change with the spatial and temporal variations in topography, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ring-tailed Cat
The ringtail (''Bassariscus astutus'') is a mammal of the Procyonidae, raccoon family native to arid regions of North America. It is widely distributed and well adapted to disturbed areas. It has been legally trapped for its fur. It is listed as Least Concern on the IUCN Red List. It is also known as the ringtail cat, ring-tailed cat, miner's cat or bassarisk, and is sometimes called a cacomistle, though this term seems to be more often used to refer to ''cacomistle, Bassariscus sumichrasti''. The ringtail is the state mammal of Arizona. Description The ringtail is black to dark brown in color with pale underparts. The animal has a pointed muzzle with long whiskers, similar to that of a fox (its Latin name means ‘clever little fox’) and its body resembles that of a cat. The ringtailed's face resembles a mask as dark brown and black hair surround its eyes. These animals are characterized by a long black and white "ringed" tail with 14–16 stripes, which is about the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raccoon
The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of . Its grayish coat mostly consists of dense underfur, which insulates it against cold weather. Three of the raccoon's most distinctive features are its extremely dexterous front paws, its facial mask, and its ringed tail, which are themes in the mythologies of the indigenous peoples of the Americas relating to the animal. The raccoon is noted for its intelligence, as studies show that it is able to remember the solution to tasks for at least three years. It is usually nocturnal and omnivorous, eating about 40% invertebrates, 33% plants, and 27% vertebrates. The original habitats of the raccoon are deciduous and mixed forests, but due to their adaptability, they have extended their range to mountainous areas, coastal marshes, and urban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gray Fox
The gray fox (''Urocyon cinereoargenteus''), or grey fox, is an omnivorous mammal of the family Canidae, widespread throughout North America and Central America. This species and its only congener, the diminutive island fox (''Urocyon littoralis'') of the California Channel Islands, are the only living members of the genus ''Urocyon'', which is considered to be genetically basal to all other living canids. Its species name ''cinereoargenteus'' means " ashen silver". It was once the most common fox in the eastern United States, and though still found there, human advancement and deforestation allowed the red fox to become the predominant fox-like canid. Despite this post-colonial competition, the gray fox has been able to thrive in urban and suburban environments, one of the best examples being southern Florida. The Pacific States and Great Lakes region still have the gray fox as their prevalent fox. Etymology The genus ''Urocyon'' comes from the Latin 'uro' meaning tail, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympic Black Bear
The American black bear (''Ursus americanus''), also called simply a black bear or sometimes a baribal, is a medium-sized bear endemic to North America. It is the continent's smallest and most widely distributed bear species. American black bears are omnivores, with their diets varying greatly depending on season and location. They typically live in largely forested areas, but will leave forests in search of food, and are sometimes attracted to human communities due to the immediate availability of food. The International Union for Conservation of Nature (IUCN) lists the American black bear as a least-concern species, due to its widespread distribution and a large population estimated to be twice that of all other bear species combined. Along with the brown bear (''Ursus arctos''), it is one of only two modern bear species not considered by the IUCN to be globally threatened with extinction. Taxonomy and evolution Despite living in North America, American black bears are not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mule Deer
The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer. Unlike the related white-tailed deer (''Odocoileus virginianus''), which is found throughout most of North America east of the Rocky Mountains and in the valleys of the Rocky Mountains from Idaho and Wyoming northward, mule deer are only found on the western Great Plains, in the Rocky Mountains, in the southwest United States, and on the west coast of North America. Mule deer have also been introduced to Argentina and Kauai, Kauai, Hawaii. Taxonomy Mule deer can be divided into two main groups: the mule deer (''sensu stricto'') and the black-tailed deer. The first group includes all subspecies, except ''O. h. columbianus'' and ''Sitka deer, O. h. sitkensis'', which are in the black-tailed deer group. The two main groups have been treated as separate species, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Alder
''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] |
Red Osier Dogwood
''Cornus sericea'', the red osier or red-osier dogwood, is a species of flowering plant in the family Cornaceae, native to much of North America. It has sometimes been considered a synonym of the Asian species ''Cornus alba''. Other names include red brush, red willow,USDA NRCSbr>Plant Guide: REDOSIER DOGWOOD. May, 2006/ref>Hilger, Inez (1951, repr. 1992) ''Chippewa Child Life and Its Cultural Background'', page 63Hart, Jeff, and Jacqueline Moore (1992). ''Montana—native plants and early peoples''pages 38–39 Montana Historical Society. redstem dogwood, redtwig dogwood, red-rood, American dogwood, creek dogwood, and western dogwood. Description In the wild, it most commonly grows in areas of rich, poorly drained soils, such as riparian zones and wetlands, or in upland areas which receive more than 20 inches of precipitation annually. More uncommonly, it may be found in drier zones albeit at lesser abundance. Red osier dogwood is tolerant of flooding and has been known to sur ... [...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] |
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