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Lessingia Germanorum
''Lessingia germanorum'' is a rare species of flowering plant in the family Asteraceae known by the common name San Francisco lessingia. It is endemic to California, where it is known from four populations in the Presidio of San Francisco and one occurrence on San Bruno Mountain south of San Francisco. It is a state and federally listed endangered species. The already rare plant is endangered by many processes, including invasive species, development, sand mining, off-road vehicles and bulldozers, habitat fragmentation, trampling, and pollution, as well as stochastic events.US Fish & Wildlife ServiceEndangered status for the plant ''Lessingia germanorum'' (San Francisco Lessingia) from California ''Federal Register'' 62:118. June 19, 1997. This is an annual herb producing a decumbent to erect, reddish stem no more than 30 centimeters long. The deeply lobed leaves are up to 3 or 4 centimeters long. Some leaves and new stem parts are coated in woolly fibers. The inflorescence is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelbert Von Chamisso
Adelbert von Chamisso (; 30 January 1781 – 21 August 1838) was a German poet, writer and botanist. He was commonly known in French as Adelbert de Chamisso (or Chamissot) de Boncourt, a name referring to the family estate at Boncourt. Life The son of Louis Marie, Count of Chamisso, by his marriage to Anne Marie Gargam, Chamisso began life as Louis Charles Adélaïde de Chamissot at the ''château'' of Boncourt at Ante, in Champagne, France, the ancestral seat of his family. His name appears in several forms, one of the most common being ''Ludolf Karl Adelbert von Chamisso.''Rodolfo E.G. Pichi Sermolli. 1996. ''Authors of Scientific Names in Pteridophyta''. Royal Botanic Gardens, Kew. In 1790, the French Revolution drove his parents out of France with their seven children, and they went successively to Liège, the Hague, Würzburg, and Bayreuth, and possibly Hamburg Hamburg (, ; ), officially the Free and Hanseatic City of Hamburg,. is the List of cities in Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bract
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate or ebracteolate. Variants Some bracts are brightly coloured which aid in the attraction of pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of '' Euphorbia pulcherrima'' (poinsettia) and '' Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and palea (upper bract), while each spikelet (group of florets) has a further pair o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecosystem
An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and energy flows. Ecosystems are controlled by external and internal Environmental factor, factors. External factors—including climate—control the ecosystem's structure, but are not influenced by it. By contrast, internal factors control and are controlled by ecosystem processes; these include decomposition, the types of species present, root competition, shading, disturbance, and succession. While external factors generally determine which Resource (biology), resource inputs an ecosystem has, their availability within the ecosystem is controlled by internal factors. Ecosystems are wikt:dynamic, dynamic, subject to periodic disturbances and always in the process of recovering from past disturbances. The tendency of an ecosystem to remain clo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Radiata
''Pinus radiata'' ( syn. ''Pinus insignis''), the Monterey pine, insignis pine or radiata pine, is a species of pine native to the Central Coast of California and Mexico (on Guadalupe Island and Cedros island). It is an evergreen conifer in the family Pinaceae. ''Pinus radiata'' is a versatile, fast-growing, medium-density softwood, suitable for a wide range of uses and valued for rapid growth (up to two meters (6.5 feet) in one year), as well as desirable lumber and pulp qualities. Its silviculture reflects a century of research, observation and practice. It is often considered a model for growers of other plantation species. Although ''P. radiata'' is extensively cultivated as a plantation timber in many temperate parts of the world, it faces serious threats in its natural range, due to the introduction of a fungal parasite, the pine pitch canker (''Fusarium circinatum''). The pine shoot moth '' Rhyacionia buoliana'' is another serious problem. In cultivation in New Zeala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupressus Macrocarpa
''Hesperocyparis macrocarpa'' also known as ''Cupressus macrocarpa'', or the Monterey cypress is a coniferous tree, and is one of several species of Cupressaceae, cypress trees native to California. The Monterey cypress is found naturally only on the Central Coast (California), Central Coast of California. Due to being a glacial relict, the natural distributional range of the species during modern times is confined to two small relict populations near Carmel-by-the-Sea, California, Carmel, California, at Cypress Point in Pebble Beach, California, Pebble Beach and at Point Lobos. Historically during the peak of the last ice age, Monterey cypress would have likely comprised a much larger forest that extended much further north and south.Axelrod, D. I. (1982)Age and origin of the Monterey endemic area.''Madroño'', ''29''(3), 127–147. Description ''Hesperocyparis macrocarpa'' is a medium-sized coniferous evergreen tree, which often becomes irregular and flat-topped as a resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only plants that are usable as lumber, or only plants above a specified height. But wider definitions include taller palms, tree ferns, bananas, and bamboos. Trees are not a monophyletic taxonomic group but consist of a wide variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some trees reaching several thousand years old. Trees evolved around 400 million years ago, and it is estimated that there are around three trillion mature trees in the world currently. A tree typically has many secondary branches supported cle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpobrotus
''Carpobrotus'', commonly known as pigface, ice plant, sour fig, Hottentot fig, and clawberry is a genus of ground-creeping plants with succulent leaves and large daisy-like flowers. The name comes from the Ancient Greek ' "fruit" and ' "edible", referring to its edible fruits. The genus includes some 12 to 20 accepted species. Most are endemic to South Africa, but there are at least four Australian species and one South American. Distribution and habitat ''Carpobrotus'' mainly occurs in the sandy coastal habitats of mild Mediterranean climates, and can be also found inland in sandy to marshy places. In general, members of this genus prefer open sandy spaces where their wiry, long roots with shorter side branches form dense underground network. The root networks typically extend much further than the above-ground prostrate branches. Plants thrive well in gardens, but readily escape to other suitable locations, resulting in some members of the genus being considered an invasive sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lobos Creek
Lobos Creek (from the Spanish for sea lion, ''lobo marino'' — literally, "sea wolf") is a stream in the Presidio of San Francisco in San Francisco, California.Museum of California Creeks Map access date December 31, 2008 , Lobos Creek Watershed Map, access date December 31, 2008 Overview Lobos Creek runs from runoff in the Presidio and Seacliff areas and underground seepage from springs that form Mountain Lake to the Pacific Ocean, marking the division between |
Daly City, California
Daly City () is the second-most populous city in San Mateo County, California, United States. Located in the San Francisco Bay Area, and immediately south of San Francisco (sharing its northern border with almost all of San Francisco's southern border), it is named for businessman and landowner John Donald Daly. Its population was 104,901 at the 2020 United States census, 2020 census. The Race and ethnicity in the United States Census, racial makeup of Daly City was 57.3% Asian Americans, Asian, 11.7% non-Hispanic White, and 23.1% Hispanic or Latino of any race in the 2020 United States census, 2020 census. Notably, 33.2% of the population of Daly City is Filipino. History Archaeological evidence suggests the San Francisco Bay area has been inhabited as early as 2700 BC. People of the Ohlone languages, Ohlone language group probably occupied Northern California from at least the year A.D. 500. Though the Californias, their territory had been Viceroyalty of New Spain, claimed b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urbanization
Urbanization (or urbanisation in British English) is the population shift from Rural area, rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It can also mean population growth in urban areas instead of rural ones. It is predominantly the process by which towns and City, cities are formed and become larger as more people begin to live and work in central areas. Although the two concepts are sometimes used interchangeably, urbanization should be distinguished from Urban sprawl, urban growth. Urbanization refers to the ''proportion'' of the total national population living in areas classified as urban, whereas urban growth strictly refers to the ''absolute'' number of people living in those areas. It is predicted that by 2050, about 64% of the developing world and 86% of the developed world will be urbanized. This is predicted to generate artificial scarcities of land, lack of dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Peninsula
The San Francisco Peninsula is a peninsula in the San Francisco Bay Area that separates San Francisco Bay from the Pacific Ocean. On its northern tip is the City and County of San Francisco. Its southern base is Los Altos and Mountain View, in Santa Clara County, south of Palo Alto and north of Sunnyvale. Most of the Peninsula is occupied by San Mateo County, between San Francisco and Santa Clara counties, and including the cities and towns of Atherton, Belmont, Brisbane, Burlingame, Colma, Daly City, East Palo Alto, El Granada, Foster City, Half Moon Bay, Hillsborough, La Honda, Loma Mar, Los Altos, Los Altos Hills, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Pescadero, Portola Valley, Redwood City, Redwood Shores, San Bruno, San Carlos, San Mateo, South San Francisco, West Menlo Park and Woodside. Whereas the term ''peninsula'' in a geographical sense technically refers to the entire San Francisco Peninsula, in local jargon, "The Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
