Cistanthe Tweedyi
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Cistanthe Tweedyi
''Lewisiopsis tweedyi'' is a flowering plant and sole species in genus ''Lewisiopsis''. The species, formerly known as ''Cistanthe tweedyi'' and ''Lewisia tweedyi'', is now classified in the family Montiaceae. The plant is known by the common names Tweedy's pussypaws, Tweedy's lewisia, or Tweedy's bitterroot. It is endemic to western North America in north-central Washington and adjacent British Columbia. It commonly grows on well-drained slopes often on rocky slopes or in rock crevices from low elevation ponderosa pine sites up to the drier part of the Grand Fir zone of the North Cascades. The flowers usually have a coral, apricot, or pink color. Etymology The genus name of ''Lewisiopsis'' is in honour of Meriwether Lewis (1774–1809), who was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition. The Latin specific epithet ''tweedyi'' honours Frank Tweedy, the 19th century American topograp ...
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Rafaël Govaerts
Rafaël Herman Anna Govaerts (born 1968) is a Belgian botanist. He is particularly noted for his work on plant taxonomy. He studied a Bachelor in Science at the European University College Brussels (EHSAL), and since 1994, has worked at the Royal Botanic Gardens, Kew. He is the principal contributor to the World Checklist of Selected Plant Families, which was completed in 2023, and will continue to be updated as Plants of the World Online. He is also a Fellow of the Linnean Society of London The Linnean Society of London is a learned society dedicated to the study and dissemination of information concerning natural history, evolution, and Taxonomy (biology), taxonomy. It possesses several important biological specimen, manuscript a .... References External sourcesRoyal Botanic Gardens Kew Staff Profile 20th-century Belgian botanists Botanists active in Kew Gardens Botanists with author abbreviations Belgian expatriates in the United Kingdom Living people 19 ...
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Evergreen
In botany, an evergreen is a plant which has Leaf, foliage that remains green and functional throughout the year. This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many different species, the unique feature of evergreen plants lends itself to various environments and purposes. Evergreen species There are many different kinds of evergreen plants, including trees, shrubs, and vines. Evergreens include: * Most species of conifers (e.g., pine, Tsuga, hemlock, spruce, and fir), but not all (e.g., larch). * Live oak, holly, and "ancient" gymnosperms such as cycads * Many woody plants from frost-free climates * Rainforest trees * All eucalypts * Lycopodiopsida, Clubmosses and relatives * Most bamboos The Latin binomial term , meaning "always green", refers to the evergreen nature of the plant, for instance: :''Cupressus sempervirens'' (a cypress) :''Lonicera sempervirens'' (a honeysuckle) :''Sequoia sempervirens'' ...
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Mount Stuart
Mount Stuart is a mountain in the Cascade Range, in the U.S. state of Washington (state), Washington. It is the second highest non-volcanic peak in the state, after Bonanza Peak (Washington), Bonanza Peak and seventh-highest overall. Mount Stuart is the highest peak in the Stuart Range, and it is located in the central part of the Washington Cascades, south of Stevens Pass and east of Snoqualmie Pass in the Alpine Lakes Wilderness. Name Mount Stuart was given its name by George B. McClellan in September 1853 in honor of his oldest and best friend, "the late Capt. Jas. [Jimmie] Stuart of the Rifles—a gallant soldier & accomplished gentleman." Stuart had died of an arrow wound on June 18, 1851, following a skirmish with Native Americans at the base of the Siskiyou Mountains in southwest Oregon. Topography Mount Stuart is more notable for its local relief than for its absolute elevation. For example, the south face rises in just . The northeast and northwest sides of th ...
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Manning Park
E.C. Manning Provincial Park is a provincial park in British Columbia, Canada. It is usually referred to as Manning Park, although that nomenclature is also used to refer to the resort and ski area at the park's core. The park covers 83,671 hectares (323 mi2) and was the second most visited provincial park in 2017-18 after Cypress Provincial Park. The park lies along British Columbia Highway 3, and occupies a large amount of land between Hope and Princeton along the Canada-United States border. History The earliest human use of the land was by the Coastal Native peoples of British Columbia, who, by travelling the route of the present-day Skyline Trail, accessed the Upper Similkameen Valley. The first European in the area was 1813 and was explored and mapped in 1827 by Archibald McDonald. Access to the area prior to the Great Depression was extremely limited for the lack of any kind of developed roads or trails over the Cascade Mountains other than the Dewdney Trail, far ...
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Methow River
The Methow River ( ) is a tributary of the Columbia River in northern Washington in the United States. The river's watershed drains the eastern North Cascades, with a population of about 5,000 people. The Methow's watershed is characterized by relatively pristine habitats, as much of the river basin is located in national forests and wildernesses. Many tributaries drain the large Pasayten Wilderness. An earlier economy based on agriculture is giving way to one based on recreation and tourism. History The river was named after the Methow Native Americans (today part of the Confederated Tribes of the Colville Indian Reservation). The name "Methow" comes from the Okanagan placename ''/mətxʷú/'', meaning "sunflower (seeds)". The Native American name for the river was ''Buttlemuleemauch'', meaning "salmon falls river". In 1841 the Wilkes Expedition named the river "Barrier River". Alexander Ross said the native name was Buttle-mule-emauch. In 1811 David Thompson met the tri ...
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Wenatchee Mountains
The Wenatchee Mountains are a range of mountains in central Washington State, United States of America. A major subrange of the Cascade Range, extending east from the Cascade crest, the Wenatchee Mountains separate the drainage basins of the Yakima River from the Wenatchee River. The crest of the range forms part of the boundary between Chelan and Kittitas Counties. Extent Fred Beckey describes the Wenatchee Mountains as the area between the Wenatchee and Yakima rivers and Stevens Pass. Among the range's significant features he describes are Mount Stuart, the second highest non-volcanic peak in Washington and one of the largest single granitic mountains in the United States, the Cashmere Crags, the Lost World Plateau, Edward Plateau, and Dragontail Plateau, the Enchantment Lakes Basin ("one of the most marvelous examples of an ice-sculpted wilderness in the Cascade Range″), Icicle Creek and its narrow, U-shaped valley over deep, one of the deepest in the Cascades, and t ...
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Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ...
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Stigma (botany)
The stigma (: stigmas or stigmata) is the receptive tip of a Gynoecium#Carpels, carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the Style (botany), style and ovary (botany), ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germination, germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals (Pollination syndrome#Biotic, ...
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Stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains sporangium, microsporangia. Most commonly, anthers are two-lobed (each lobe is termed a locule) and are attached to the filament either at the base or in the middle area of the anther. The sterile (i.e. nonreproductive) tissue between the lobes is called the Connective (botany), connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The size of anthers differs greatly, from a tiny fraction of a millimeter in ''Wolfia'' spp up to five inches (13 centimeters) in ''Canna iridiflora'' and ''Strelitzia nicolai''. The stamens in a flower ...
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Sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' was coined by Noël Martin Joseph de Necker in 1790, and derived . Collectively, the sepals are called the ''calyx'' (plural: calyces), the outermost Whorl (botany), whorl of parts that form a flower. The word ''calyx'' was adopted from the Latin ,Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 not to be confused with 'cup, goblet'. The Latin ''calyx'' is derived from Greek 'bud, calyx, husk, wrapping' ( Sanskrit 'bud'), while is derived from Greek 'cup, goblet'; both words have been used interchangeably in botanical Latin. Description The term ''tepal'' is usually applied when the parts of the perianth are difficult to distinguish, e. ...
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Petiole (botany)
In botany, the petiole () is the stalk that attaches the leaf blade to the Plant stem, stem. It is able to twist the leaf to face the sun, producing a characteristic foliage arrangement (spacing of blades), and also optimizing its exposure to sunlight. Outgrowths appearing on each side of the petiole in some species are called stipules. The terms wikt:petiolate, petiolate and wikt:apetiolate, apetiolate are applied respectively to leaves with and without petioles. Description The petiole is a stalk that attaches a leaf to the plant stem. In petiolate leaves the leaf stalk may be long (as in the leaves of celery and rhubarb), or short (for example basil). When completely absent, the blade attaches directly to the stem and is said to be Sessility (botany), sessile or apetiolate. Subpetiolate leaves have an extremely short petiole, and may appear sessile. The broomrape family Orobanchaceae is an example of a family in which the leaves are always sessile. In some other plant group ...
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