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Dicranostegia
''Dicranostegia'' is a monotypic genus of hemiparasitic flowering plants belonging to the family Orobanchaceae, containing the species ''Dicranostegia orcuttiana'', commonly known as Orcutt's bird's beak or Baja bird's beak. It is near-endemic to Baja California, found from Miller's Landing north to Tijuana, but has a few occurrences in southern San Diego County, California. It is differentiated among other similar species (like ''Cordylanthus'' spp.) in California by its leaves with 8 to 11 lateral lobes that are paired. It was formerly placed in the genus ''Cordylanthus'' until phylogenetic analysis led to it being split off. This species is threatened by the destruction of its habitat from urbanization. Description This annual hemiparasitic herb grows to in height and is green with dark-red markings, and often coated in stiff hairs. The roots are mostly yellowish in color, and form haustoria on their finer branches. The leaves are pinnately divided, arranged alternately, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cordylanthus
''Cordylanthus'' (), commonly known as bird's beaks, is a genus of parasitic plants in the broomrape family, Orobanchaceae. These western North American natives are sparse, weedy-looking annuals with long branching erect stems and little foliage, and many bear bird's-beak–shaped flowers. They are remarkable among the broomrapes for growing at searing temperatures in arid climates. Taxonomy The first species known was '' Cordylanthus rigidus'', which was described as ''Adenostegia rigida'' in 1836 by the well-known English plant taxonomist George Bentham. Thomas Nuttall was another English botanist, an explorer of the former British colony, renamed the United States of America, and its recently acquired French territories to the west, as well as the Mexican and British lands of the far west, returning to England in 1841. In one of Nuttall unpublished manuscripts Bentham found another four species, which Nuttall had described using the name ''Cordylanthus'', despite this being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orobanchaceae
Orobanchaceae, the broomrapes, is a family of mostly parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera (e.g., ''Pedicularis'', ''Rhinanthus'', ''Striga'') were formerly included in the family Scrophulariaceae ''sensu lato''. With its new circumscription, Orobanchaceae forms a distinct, monophyletic family. From a phylogenetic perspective, it is defined as the largest crown clade containing '' Orobanche major'' and relatives, but neither ''Paulownia tomentosa'' nor ''Phryma leptostachya'' nor '' Mazus japonicus''. The Orobanchaceae are annual herbs or perennial herbs or shrubs, and most (all except ''Lindenbergia'', ''Rehmannia'' and ''Triaenophora'') are parasitic on the roots of other plants—either holoparasitic or hemiparasitic (fully or partly parasitic). The holoparasitic species lack chlorophyll and therefore cannot perform photosynthesis. Description Orobanchaceae is the largest of the 20–28 dicot fami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NatureServe
NatureServe, Inc. is a non-profit organization based in Arlington County, Virginia, US, that provides proprietary wildlife conservation-related data, tools, and services to private and government clients, partner organizations, and the public. NatureServe reports being "headquartered in Arlington, Virginia, with regional offices in four U.S. locations and in Canada." In calendar year 2011 they reported having 86 employees, 6 volunteers, and 15 independent officers. History The Nature Conservancy reports that in 2000 it spun off its 85-center Natural Heritage Network "into a new independent organization, the Association for Biodiversity Information (later renamed NatureServe)." NatureServe reports that it was established in 1994 as the Association for Biodiversity Information. In 2001 the IRS approved a name change to NatureServe that was requested in 1999, while maintaining the organization's 501(c)(3) tax-exempt status granted in July 1995. NatureServe's website declares that it i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sessility (botany)
In botany, sessility (meaning "sitting", used in the sense of "resting on the surface") is a characteristic of plant parts (such as flowers and leaves) that have no stalk. Plant parts can also be described as subsessile, that is, not completely sessile. A sessile flower is one that lacks a pedicel (flower stalk). A flower that is not sessile is pedicellate. For example, the genus ''Trillium'' is partitioned into two subgenera, the sessile-flowered trilliums (''Trillium'' subg. ''Sessilium'') and the pedicellate-flowered trilliums. Sessile leaves lack petioles (leaf stalks). A leaf that is not sessile is petiolate. For example, the leaves of most monocotyledons lack petioles. The term sessility is also used in mycology to describe a fungal fruit body that is attached to or seated directly on the surface of the substrate, lacking a supporting stipe or pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transvers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Native Plant Society
The California Native Plant Society (CNPS) is a California environmental non-profit organization (501(c)3) that seeks to increase understanding of California's native flora and to preserve it for future generations. The mission of CNPS is to conserve California native plants and their natural habitats, and increase understanding, appreciation, and horticultural use of native plants throughout the entire state and California Floristic Province. History California Native Plant Society was founded in 1965 by professional botanists and grassroots activists who, after saving an important native plant garden in Berkeley's Tilden Regional Park, were inspired to create an ongoing organization with the mission to save and promote the native plants of California. Structure For 50 years, professional CNPS staff and volunteers have worked alongside scientists, government officials, and regional planners to protect habitats and species, and to advocate for well-informed environmental practic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NatureServe Conservation Status
The NatureServe conservation status system, maintained and presented by NatureServe in cooperation with the Natural Heritage Network, was developed in the United States in the 1980s by The Nature Conservancy (TNC) as a means for ranking or categorizing the relative imperilment of species of plants, animals, or other organisms, as well as natural ecological communities, on the global, national or subnational levels. These designations are also referred to as NatureServe ranks, NatureServe statuses, or Natural Heritage ranks. While the Nature Conservancy is no longer substantially involved in the maintenance of these ranks, the name TNC ranks is still sometimes encountered for them. NatureServe ranks indicate the imperilment of species or ecological communities as natural occurrences, ignoring individuals or populations in captivity or cultivation, and also ignoring non-native occurrences established through human intervention beyond the species' natural range, as for example w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suburbanization
Suburbanization is a population shift from central urban areas into suburbs, resulting in the formation of (sub)urban sprawl. As a consequence of the movement of households and businesses out of the city centers, low-density, peripheral urban areas grow. Sub-urbanization is inversely related to urbanization, which denotes a population shift from rural areas into urban centers. Many residents of metropolitan regions work within the central urban area, but live outside of it, in satellite communities called suburbs, and commute to work by car or mass transit. Others have the opportunity to work from home, due to technological advances. Suburbanization often occurs in more economically developed countries. The United States is believed to be the first country in which the majority of the population lived in suburbs rather than cities or rural areas. Proponents of containing the urban sprawl argue that the sprawl leads to urban decay and a concentration of lower-income residents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chula Vista, California
Chula Vista (; ) is the second-largest city in the San Diego metropolitan area, the Largest cities in Southern California, seventh largest city in Southern California, the List of largest California cities by population, fifteenth largest city in the state of California, and the List of United States cities by population, 78th-largest city in the United States. The population was 275,487 as of the 2020 census, up from 243,916 as of the 2010 census. Located about halfway——between the two downtowns of San Diego–Tijuana metropolitan area, San Diego and Tijuana in the South Bay (San Diego County), South Bay, the city is at the center of one of the richest culturally diverse zones in the United States. Chula Vista is so named because of its scenic location between the San Diego Bay and coastal mountain foothills. The area, along with San Diego, was inhabited by the Kumeyaay before contact from the Spanish, who later claimed the area. In 1821, Chula Vista became part of the newl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tijuana River
, name_etymology = , image = Presa Tij 1.jpg , image_size = , image_caption = Dam on the Tijuana River in Mexico. , map = Tijuana River Basin.svg , map_size = 250 , map_caption = Map of the Tijuana River basin , pushpin_map = , pushpin_map_size = , pushpin_map_caption= , subdivision_type1 = Country , subdivision_name1 = Mexico, United States , subdivision_type2 = State , subdivision_name2 = Baja California, California , subdivision_type3 = , subdivision_name3 = , subdivision_type4 = District , subdivision_name4 = San Diego County (California) , subdivision_type5 = Municipalities , subdivision_name5 = Ensenada, Tijuana, Tecate, San Ysidro (Baja California) , length = , width_min = , width_avg = , width_max = , depth_min = , depth_avg = , depth_max = , discharge1_location= Tijuana Slough Natio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otay River
The Otay River () is a river in southern San Diego County, California. The river begins at San Miguel Mountain, flows through the Upper and Lower Otay Reservoirs, and continues on between the southern part of the Chula Vista and the Otay Mesa West district of San Diego, to its river mouth on San Diego Bay. River The river has a watershed. To its north is the watershed of Sweetwater River, and to its south is the watershed of Tijuana River. Between Interstate 5 and Interstate 805 is Otay Valley Regional Park. , there is a plan to restore part of its pre- Mexican era estuary on lands utilized by the South Bay Salt Works. Otay Reservoirs Savage Dam, completed in 1921, forms the Lower Otay Reservoir, which is used to supply drinking water to parts of southern San Diego County. The reservoir is also the terminus for Pipeline 3 of the Second San Diego Aqueduct, which delivers water from the Colorado River via the Colorado River Aqueduct. Its predecessor, the Lower Otay Dam was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
