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Physaria Tumulosa
''Physaria tumulosa'' is a rare species of flowering plant in the family Brassicaceae known by the common name Kodachrome bladderpod. It is endemic to Utah in the United States, where it is known only from Kane County.''Lesquerella tumulosa''. The Nature Conservancy. There is only one known population of this plant made up of scattered occurrences totalling about 20,000 individuals, all within the Kodachrome Basin.USFWS ''Lesquerella tumulosa'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rupert Charles Barneby
Rupert Charles Barneby (6 October 1911 – 5 December 2000) was a British-born self-taught botanist whose primary specialty was the Fabaceae (Leguminosae), the pea family, but he also worked on Menispermaceae and numerous other groups. He was employed by the New York Botanical Garden from the 1950s until shortly before his death. Barneby published prolifically and named and described over 1,100 new species. In addition, he had 25 species named after him as well as four genera: '' Barnebya,'' '' Barnebyella'', '' Barnebydendron'', and ''Rupertia''. He received numerous prestigious botanical awards, including The New York Botanical Garden's Henry Allan Gleason Award (1980), the American Society of Plant Taxonomists' Asa Gray Award (1989), the International Association for Plant Taxonomy's Engler Silver Medal (1992), and the International Botanical Congress International Botanical Congress (IBC) is an international meeting of botanists in all scientific fields, authorized by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silique
A silique or siliqua (plural ''siliques'' or ''siliquae'') is a type of fruit (seed capsule) having two fused carpels with the length being more than three times the width. When the length is less than three times the width of the dried fruit it is referred to as a silicle. The outer walls of the ovary (the ''valves'') usually separate when ripe, then being named ''dehiscent'', and leaving a persistent partition (the ''replum''). ''Siliques'' are present in many members of the mustard family, Brassicaceae, but some species have ''silicles'' instead. Some species closely related to plants with true ''siliques'' have fruits with a similar structure that do not open when ripe; these are usually called ''indehiscent siliques'' (compare dehiscence). Lunaria annua MHNT.BOT.2004.0.779.jpg, Silicles of ''Lunaria annua'' – MHNT Capsella bursa-pastoris Sturm23.jpg, ''Capsella bursa-pastoris'' with silicles Raphanus sativus 004.jpg, Indehiscent siliques of radish ''Raphanus sativus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Utah
This is a list of flora of Utah, a state in the western United States, listed alphabetically by family. , there are 3,930 species of plants in Utah, with 3,128 of those being indigenous and 792 being introduced through various means. Plants sorted by family Each entry lists the scientific name first (sorted alphabetically), then one or more common names for the plant (if any). Flora that have been introduced to the state are indicated with an † at the right of the scientific name. Entries are otherwise native. Entries marked with ‡ are considered invasive or noxious per the official list of noxious weeds maintained by the Utah Department of Agriculture and Food, though nine of those are not known to exist in Utah and have therefore not been included here. Amaranthaceae *''Allenrolfea occidentalis'' – iodine bush *''Atriplex argentea'' – silverscale saltbush, silver orache *'' Atriplex canescens'' – chamiso, chamiza, four-wing saltbush *''Atriplex confertifolia'' – s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physaria
''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are densely hairy annual and perennial herbs often growing prostrate or decumbent, along the ground in patches or clumps. They bear inflorescences of bright yellow flowers. The fruit is often notched deeply, dividing into twin sections, giving the genus its common name. Bladderpod oil is extracted from the seeds of ''Physaria fendleri'' and certain other species in the genus. U.S. Fish and Wildlife Service: Missouri Bladderpod 5-Year Review (2008) Due to the presence of both annual and perennial herbaceous members, this genus has been used as a model for allocation pattern comparisons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravel
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel () and pebble gravel (). ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm to 20–63 mm. One cubic metre of gravel typically weighs about 1,800 kg (or a cubic yard weighs about 3,000 lb). Gravel is an important commercial product, with a number of applications. Almost half of all gravel production is used as aggregate for concrete. Much of the rest is used for road construction, either in the road base or as the road surface (with or without asphalt or other binders.) Naturally occurring porous gravel deposits have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows. The rates at which such processes act control how fast a surface is eroded. Typically, physical erosion procee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Retrogression And Degradation
Soil retrogression and degradation are two regressive evolution processes associated with the loss of equilibrium of a stable soil. Retrogression is primarily due to soil erosion and corresponds to a phenomenon where succession reverts the land to its natural physical state. Degradation is an evolution, different from natural evolution, related to the local climate and vegetation. It is due to the replacement of primary plant communities (known as climax vegetation) by the secondary communities. This replacement modifies the humus composition and amount, and affects the formation of the soil. It is directly related to human activity. Soil degradation may also be viewed as any change or ecological disturbance to the soil perceived to be deleterious or undesirable.Johnson, D.L., S.H. Ambrose, T.J. Bassett, M.L. Bowen, D.E. Crummey, J.S. Isaacson, D.N. Johnson, P. Lamb, M. Saul, and A.E. Winter-Nelson. 1997. Meanings of environmental terms. Journal of Environmental Quality 26: 58 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Off-road Vehicle
An off-road vehicle, sometimes referred to as an overland or adventure vehicle, is considered to be any type of vehicle which is capable of driving on and off paved or gravel surface. It is generally characterized by having large tires with deep, open treads, a flexible suspension, or even caterpillar tracks. Other vehicles that do not travel on public streets or highways are generally termed off-highway vehicles, including tractors, forklifts, cranes, backhoes, bulldozers, and golf carts. Off-road vehicles have an enthusiastic following because of their versatility. Several types of motorsports involve racing off-road vehicles. The most common use of these vehicles is for sightseeing in areas distant from the pavement. The use of higher clearance and higher traction vehicles enables access on trails and forest roads that have rough and low traction surfaces. Off-road vehicles can typically ford through deeper waters (i.e., rivers or floodwaters) than on-road vehicles can. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptantha Flava
''Cryptantha flava'' is a yellow flowered perennial plant in the borage family (Boraginaceae Boraginaceae, the borage or forget-me-not family, includes about 2,000 species of shrubs, trees and herbs in 146, to 156 genera with a worldwide distribution. The APG IV system from 2016 classifies the Boraginaceae as single family of the order ...) found in the Colorado Plateau and Canyonlands region of the southwestern United States.Damian Fagan, ''Canyon Country Wildflowers'', 2nd ed., 2012, Morris Bush Publishing, LLC. in cooperation with Canyonlands Natural History Association, References flava {{Asterid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purshia Tridentata
''Purshia tridentata'', with the common name bitterbrush, is a shrub in the genus '' Purshia'' of the family Rosaceae. It is native to mountainous areas of western North America. Common names include antelope bitterbrush, antelope bush, buckbrush, quinine brush, and less commonly deerbrush, blackbrush, and greasewood. Some of these names are shared with other species. Description ''Purshia tridentata'' is a deciduous shrub growing to a height of . It has many branches and slender green, three- to five-lobed leaves 5–20 millimetres long. It is a nitrogen-fixing plant. The flowers are pale yellow, with five petals 6–8 mm long, and darker yellow anthers. The fruit is a cluster of dry, slender, leathery achenes 0.6–2 centimetres long. Varieties There are two named varieties of the species: *''Purshia tridentata var. glandulosa'' — Eastern Sierra Nevada, Southern California *''Purshia tridentata var. tridentata'' Distribution The plant is found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carmel Formation
The Carmel Formation is a geologic formation in the San Rafael Group that is spread across the U.S. states of Wyoming, Utah, Colorado, north east Arizona and New Mexico. Part of the Colorado Plateau, this formation was laid down in the Middle Jurassic during the late Bajocian, through the Bathonian and into the early Callovian stages. Description The Carmel Formation consists of up to of mudrock and sandstone interbedded with limestone and gypsum. It was laid down in a shallow marine to sabkha environment, into which terrigenous sediment was periodically carried. This gives the formation considerable lithological complexity. The formation is underlain by the Navajo Sandstone, with the regional J-2 unconformity separating the two formations, or by the Temple Cap Formation. Portions of the Carmel Formation grade laterally eastward into the Page Sandstone. The Carmel Formation in turn is overlain by the Entrada Formation. In the type area of southern Utah, the Carmel Formati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum). The term ''elevation'' is mainly used when referring to points on the Earth's surface, while ''altitude'' or ''geopotential height'' is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and '' depth'' is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge, the summits of Mount Everest and Chimborazo have, respectively, the largest elevation and the largest geocentric distance. Aviation In aviation the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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