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Sclerolinon
''Sclerolinon'' is a monotypic genus of flowering plants in the flax family (Linaceae) containing the single species ''Sclerolinon digynum'', which is known by the common names northwestern yellowflax and yellow hard flax. It is native to the western United States, where it has been recorded in Washington, Idaho, Oregon, and as far south as central California. It grows in seasonally wet habitats, such as mountain meadows and vernal pools. It is an annual herb producing a hairless, erect stem up to tall. The leaves are oval in shape, and the upper leaves have serrated edges. They are oppositely arranged about the stem and grow erect instead of spreading away from the stem. The inflorescence is a cyme of flowers surrounded by serrated, leaflike bracts. The flower has five yellow petals in a calyx of toothed sepals. ''S. digynum'' is the only member of the Linaceae family which has both yellow flowers and serrated leaves. Classification ''S. digynum'' was formerly included ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperolinon
''Hesperolinon'' is a genus in the family Linaceae, whose common genus names are dwarf-flax or western flax, in reference to their distribution along the west coast of North America. There are 13 known species within this genus of wildflowers, most of which are limited to serpentine soil habitats within California, United States. Helen K. Sharsmith, 1961 ''Univ Calif Publ Bot'', 32:235–314 These annual plants are thought to be mostly self-pollinating. Description Stems vary between five and fifty centimeters in length, with thread-like to linear leaves generally alternate: the leaves are typically not planar and not clasping. Cymes are characteristically open and pedicels are somewhat thread-like and ascending. The flower has five sepals, whose margins may be minutely gland-toothed. Five petals are widely spreading between one and twelve millimeters in dimension. These yellow, white or rose colored petals each manifest three minute scales at the inner base. There are five sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linaceae
Linaceae is a family of flowering plants. The family is cosmopolitan, and includes about 250 species in 14 genera, classified into two subfamilies: the Linoideae and Hugonioideae. Description The leaves of the Linaceae are always simple; arrangement varies from alternate (most species) to opposite (in '' Sclerolinon'' and some '' Linum'') or whorled (in some '' Hesperolinon'' and '' Linum'' species). The hermaphroditic, actinomorphic flowers are pentameric or, very rarely, tetrameric (e.g., '' Radiola linoides'', '' Linum keniense''). Taxonomy Under the old Cronquist system of classifying the flowering plants, the Linaceae were placed in their own order, the Linales. Modern classifications place them in the order Malpighiales. In addition to their growth habits and geographic distributions, the two subfamilies can be differentiated by the number of fertile stamens (five in the Linoideae, ten in the Hugonioideae) and fruit type (capsules in the Linoideae, fleshy drupe- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linum
''Linum'' (flax) is a genus of approximately 200 species''Linum''. The Jepson Manual. in the family . They are native to and regions of the world. The genus includes the common flax (''L. usitatissimum''), the |
Asa Gray
Asa Gray (November 18, 1810 – January 30, 1888) is considered the most important American botany, botanist of the 19th century. His ''Darwiniana'' (1876) was considered an important explanation of how religion and science were not necessarily mutually exclusive. Gray was adamant that a genetic connection must exist between all members of a species. He was also strongly opposed to the ideas of hybridization within one generation and special creation in the sense of its not allowing for evolution. He was a strong supporter of Darwin, although Gray's theistic evolution was guided by a Creator. As a professor of botany at Harvard University for several decades, Gray regularly visited, and corresponded with, many of the leading natural scientists of the era, including Charles Darwin, who held great regard for him. Gray made several trips to Europe to collaborate with leading European scientists of the era, as well as trips to the southern and western United States. He also built a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kootenai County, Idaho
Kootenai County ( ) is located in the U.S. state of Idaho. As of the 2020 census, its population was 171,362, making it the third-most populous county in Idaho and the largest in North Idaho, the county accounting for 45.4% of the region's total population. The county seat and largest city is Coeur d'Alene. The county was established in 1864 and named after the Kootenai tribe. Kootenai County is coterminous with the Coeur d'Alene metropolitan area, which along with the Spokane metropolitan area comprises the Spokane–Coeur d'Alene combined statistical area. History Natives and early European activity The Coeur d'Alene region takes its name from that given the local natives by French fur trappers. The tribe initially consisted of three bands that inhabited the areas surrounding Coeur d'Alene Lake and the Coeur d'Alene River. Canadian fur trade came to the region starting in 1809, marking the tribe's first contact with Europeans. Christian missionaries would follow with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systematic Botany
''Systematic Botany'' is a peer-reviewed scientific journal covering the study of systematic botany. It is published quarterly by the American Society of Plant Taxonomists. According to the ''Journal Citation Reports'', the journal has a 2010 impact factor of 1.897. ''Systematic Botany'' was established in spring 1976 under founding editor-in-chief William Louis Culberson (Duke University). The current editor-in-chief is James F. Smith (Boise State University). The American Society of Plant Taxonomists also publishes the peer-reviewed taxonomic monograph series, ''Systematic Botany Monographs'' since 1980. Abstracting and indexing ''Systematic Botany'' is abstracted and indexed in Agricola, Agris, BioOne, PubMed, Scirus, and Science Citation Index Expanded The Science Citation Index Expanded (SCIE) is a citation index owned by Clarivate and previously by Thomson Reuters. It was created by the Eugene Garfield at the Institute for Scientific Information, launched in 196 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ResearchGate
ResearchGate is a European commercial social networking site for scientists and researchers to share papers, ask and answer questions, and find collaborators. According to a 2014 study by ''Nature'' and a 2016 article in ''Times Higher Education'', it is the largest academic social network in terms of active users, although other services have more registered users, and a 2015–2016 survey suggests that almost as many academics have Google Scholar profiles. While reading articles does not require registration, people who wish to become site members need to have an email address at a recognized institution or to be manually confirmed as a published researcher in order to sign up for an account. Articles are free to read by visitors, however additional features (such as job postings or advertisements) are accessible only as a paid subscription. Members of the site each have a user profile and can upload research output including papers, data, chapters, negative results, patents, r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Local Extinction
Local extinction, also extirpation, is the termination of a species (or other taxon) in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with extinction, global extinctions. Local extinctions mark a change in the ecology of an area. It has sometimes been followed by a replacement of the species taken from other locations, such as with wolf reintroduction. Discussion Glacial period, Glaciation is one factor that leads to local extinction. This was the case during the Quaternary glaciation, Pleistocene glaciation event in North America. During this period, most of the native North American species of earthworm were killed in places covered by glaciation. This left them open for colonization by European earthworms brought over in soil from Europe. Species naturally become extinct from islands over time; this can be either local extinction if the species also occurs elsewhere, or in cases of endemism, island endemism, outright ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Threatened Species
A threatened species is any species (including animals, plants and fungi) which is vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensation'', a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment without direct reference to human activity. IUCN definition The International Union for Conservation of Nature (IUCN) is the foremost authority on threatened species, and treats threatened species not as a single category, but as a group of three categories, depending on the degree to which they are threatened: *Vulnerable species *Endangered species *Critically endangered species Less-than-threatened categories are near threatened, least concern, and the no longer assigned category of conservation dependent. Species that have not been evaluated (NE), or do not have sufficient data ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nez Perce County, Idaho
Nez Perce County ; is a county located in the U.S. state of Idaho. As of the 2020 United States census, the population was 42,090. The county seat is Lewiston. The county is named after the Native American Nez Perce tribe. Nez Perce County is part of the Lewiston, Idaho– WA Metropolitan Statistical Area. History Nez Perce County was originally organized in 1861, when the area was part of Washington Territory. It was reorganized in 1864 by the Idaho Territorial Legislature and was later subdivided into new counties. Rapid migration to the Palouse in the 1880s led to the formation of Latah County in 1888. Isolated from its county seat of Wallace in the Silver Valley, the southern portion of Shoshone County was annexed by Nez Perce County in 1904, then became Clearwater County in 1911. Lewis County was also formed from Nez Perce County in 1911. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.0%) is water. Nez ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madroño (journal)
The California Botanical Society was founded by Willis Linn Jepson in 1913, since when it has advanced the knowledge of botanical sciences in the Western United States Services The society services are: the journal ''Madroño'', published since 1916; annual banquets in various California locations along with educational lectures; research support on green plants of Baja California, (enabled by the Annetta Carter Memorial Fund); graduate student support (together with the annual banquet); and community discussions with professional botanists. Journal ''Madroño'' is the quarterly peer-reviewed scientific journal of the Society. It was established in 1916 and focuses on botany in the western part of North America. Articles are published in English or Spanish. The current editor is Matt Ritter (California Polytechnic State University California Polytechnic State University, San Luis Obispo (Cal Poly San Luis Obispo or Cal Poly) is a public university in San Luis Obispo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia Plateau (ecoregion)
The Columbia Plateau ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) encompassing approximately of land within the U.S. states of Washington, Oregon, and Idaho. The ecoregion extends across a wide swath of the Columbia River Basin from The Dalles, Oregon to Lewiston, Idaho to Okanogan, Washington near the Canada–U.S. border. It includes nearly of the Columbia River, as well as the lower reaches of major tributaries such as the Snake and Yakima rivers and the associated drainage basins. It is named for the Columbia Plateau, a flood basalt plateau formed by the Columbia River Basalt Group during the late Miocene and early Pliocene. The arid sagebrush steppe and grasslands of the region are flanked by moister, predominantly forested, mountainous ecoregions on all sides. The underlying basalt is up to thick and partially covered by thick loess deposits. Where precipitation amounts are sufficient, the deep loess soils h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
