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Hooveria Purpurea
''Hooveria purpurea'' is a species of flowering plant related to the agaves known by the common name purple amole. This species of soap plant is endemic to California, where it grows in the Santa Lucia Range, in the Central Coast region. There are two varieties of this plant, and both are believed to be quite rare. It is a federally listed threatened species. Description ''Hooveria purpurea'' is a perennial plant growing from a bulb about 3 centimeters in diameter. The narrow, wavy leaves grow at the base of the stem. The leaves are bright green and have thick midribs. There are usually one to eight leaves, but plants with up to fourteen have been noted.USFWS''Chlorogalum purpureum'' Five Year Review.September 2008. The stem bears flowers at widely spaced nodes. Each flower has curled tepals each less than a centimeter long in shades of blue or purple. The flowers have long stamens with yellow anthers around a protruding style. The two varieties of the species can be told apar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Townshend Stith Brandegee
Townshend Stith Brandegee (February 16, 1843 – April 7, 1925) was an American botanist. He was an authority on the flora of Baja California and the Channel Islands of California, Channel Islands of California. Early life Brandegee was born on February 16, 1843, in Berlin, Connecticut. From 1862 to 1864 he served in the Connecticut Artillery and later decided to become an engineer. He got his degree in engineering from Sheffield Scientific School but then pursued botany after he participated at some classes with Daniel Cady Eaton in Yale University. When he graduated from there, he became a county surveyor and city engineer at Canon City, Colorado where in free time he also collected certain species of plants. He was accustomed with John H. Redfield and Asa Gray the later of which suggested him to join Ferdinand V. Hayden's expedition to southwest Colorado and Utah where he will use his surveyor skills as well as botanical. He was hired as a railroad surveyor in both Arkansas and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Army National Guard
The California Army National Guard (CA ARNG) is one of three components of the California National Guard, a reserve of the United States Army, and part of the National Guard of the United States. The California Army National Guard is composed of 18,450 soldiers. Nationwide, the Army National Guard comprises approximately one half of the US Army's available combat forces and approximately one third of its support organization. National coordination of various state National Guard units are maintained through the National Guard Bureau. California Army National Guard units are trained and equipped as part of the United States Army. The same enlisted and officer ranks and insignia are used and National Guardsmen are eligible to receive all United States military awards. The California Army National Guard also bestows a number of state awards for local services rendered in or to the state of California. Units * 40th Infantry Division ** 79th Infantry Brigade Combat Team (United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lasthenia Californica
''Lasthenia californica'' is a species of flowering plant in the family Asteraceae known by the common name California goldfields. It is native to western North America. Description ''L. californica'' is an Annual plant, annual herb approaching a maximum height near , but generally staying much smaller. The plant is quite variable in appearance across subspecies and climates. The leaves are hairy, somewhat linear in shape, and about long. Individuals growing along the coast may have fleshy leaves. Between March and May, the hairy stems are topped by inflorescences of flower heads, across, with hairy phyllaries. The head contains many yellow disc florets with a fringe of about 10 small ray florets. Large populations of this species bloom at once in the spring to produce the carpets of yellow on hillsides and in meadows that give the plant its common name. The seed sometimes has brownish scales at the tip. ''Crocidium multicaule'' is similar in appearance, but most of its leave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lupinus Bicolor
''Lupinus bicolor'' is a species of lupine known as the miniature lupine, Lindley's annual lupine, pigmy-leaved lupine, or bicolor lupine. It is a showy flowering annual or perennial plant native to western North America, from northwestern Baja California, throughout California, and north to British Columbia. It is found in diverse habitats below , including: grasslands; chaparral; oak, mixed conifer and Joshua tree woodlands; coastal sage scrub; and open conifer forests. It often shares habitats with other prolifically blooming spring and early summer wildflowers, including the California poppy. Description ''Lupinus bicolor'' has a short, hairy stem and thin, palmately-arranged leaves. The inflorescence is short for a lupine, at up to tall. As its name suggests the flowers are usually two colors, with one often a deep blue. The other color is often white and sometimes a light purple or magenta. There are sometimes small speckles or spots on the petals. The plant's hairy p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagiobothrys Nothofulvus
''Plagiobothrys nothofulvus'' is a species of flowering plant in the family Boraginaceae known by the common names rusty popcornflower and foothill snowdrops. It is native to western North America from Washington, and California, to northern Mexico. It is a spring wildflower in grassy meadows, woodlands, coastal sage scrub, and wetland-riparian habitats. Description It is an annual herb growing erect 20 to 70 centimeters in maximum height. It contains purple sap, the herbage edged with purple or rusty red and bleeding purple when crushed. It is hairy in texture, the hairs rough and sharp. The leaves are mostly located in a rosette around the base of the stem, with a few alternately arranged along the stem's length. The inflorescence is a series of tiny five-lobed white flowers each 3 to 9 millimeters wide. The fruit is a rounded nutlet with a pointed tip about 2 millimeters long and borne singly, in pairs or triplets which are solidly attached to each other. Deep roots are chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agriculture
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Sheep, goats, pigs and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture. The major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials (such as rubber). Food classes include cereals (grains), vegetables, fruits, cooking oils, meat, milk, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Fragmentation
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment (suspected of being one of the major causes of speciation), and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats. Definition The term habitat fragmentation includes five discrete phenomena: * Reduction in the total area of the habitat * Decrease of the interior: edge ratio * Isolation of one habitat fragment from other areas of habitat * Breaking up of one patch of habitat into several smaller patches * Decrease in the average size of each patch of habitat ... [...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] |
Loam
Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. These proportions can vary to a degree, however, and result in different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam. In the , textural classification triangle, the only soil that is not predominantly sand, silt, or clay is called "loam". Loam soils generally contain more nutrients, moisture, and |
Cyanobacteria
Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blue-green algae, although they are not usually scientifically classified as algae. They appear to have originated in a freshwater or terrestrial environment. Sericytochromatia, the proposed name of the paraphyletic and most basal group, is the ancestor of both the non-photosynthetic group Melainabacteria and the photosynthetic cyanobacteria, also called Oxyphotobacteria. Cyanobacteria use photosynthetic pigments, such as carotenoids, phycobilins, and various forms of chlorophyll, which absorb energy from light. Unlike heterotrophic prokaryotes, cyanobacteria have internal membranes. These are flattened sacs called thylakoids where photosynthesis is performed. Phototrophic eukaryotes such as green plants perform photosynthesis in plast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptobiotic Soil
Biological soil crusts are communities of living organisms on the soil surface in arid and semi-arid ecosystems. They are found throughout the world with varying species composition and cover depending on topography, soil characteristics, climate, plant community, microhabitats, and disturbance regimes. Biological soil crusts perform important ecological roles including carbon fixation, nitrogen fixation and soil stabilization; they alter soil albedo and water relations and affect germination and nutrient levels in vascular plants. They can be damaged by fire, recreational activity, grazing and other disturbances and can require long time periods to recover composition and function. Biological soil crusts are also known as ''biocrusts'' or as ''cryptogamic'', ''microbiotic'', ''microphytic'', or ''cryptobiotic'' soils. Natural history Biology and composition Biological soil crusts are most often composed of fungi, lichens, cyanobacteria, bryophytes, and algae in varying proportions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Panza Range
The La Panza Range is a mountain range in the Central Coast of California region in San Luis Obispo County, east of the small town of Santa Margarita. It is one of the California Coast Ranges and in the Los Padres National Forest. The range is about long and runs from northwest to southeast between the Santa Lucia Range on the west and the Temblor Range on the east. It rises to . The range is a northern extension of the Sierra Madre Mountains, a mountain range beginning in the northern part of Santa Barbara County Santa Barbara County, California, officially the County of Santa Barbara, is located in Southern California. As of the 2020 census, the population was 448,229. The county seat is Santa Barbara, and the largest city is Santa Maria. Santa Barba .... References Columbia Gazetteer of North America California Coast Ranges Mountain ranges of San Luis Obispo County, California Los Padres National Forest Santa Lucia Ranger District, Los Padres National Forest [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
