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Lewisia
''Lewisia'' is a plant genus, named for the American explorer Meriwether Lewis (1774-1809) who encountered the species in 1806. The native habitat of ''Lewisia'' species is north facing cliffs in western North America. Local Native Americans ate the roots, which have also been used to treat sore throats. Characteristics Lewisias are perennial flowering plants native to western North American habitats including rocky outcrops from the high elevation alpine to lower elevation chaparral, oak woodlands, and coniferous forests. They produce rosette-shaped flowers in a range of different colours. ''Lewisia cotyledon'' grow up to in height and width. About half of the species of ''Lewisia'' are deciduous, including the original ''Lewisia rediviva''. ''Lewisia longipetala'' is the only semi-deciduous species. Some species, such as ''Lewisia cotyledon'', are evergreen. Taxonomy Meriwether Lewis, of Lewis and Clark fame, is credited with the first discovery by a European or American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bitterroot
Bitterroot (''Lewisia rediviva'') is a small perennial herb in the family Montiaceae. Its specific epithet ("revived, reborn") refers to its ability to regenerate from dry and seemingly dead roots. The genus ''Lewisia'' was moved in 2009 from the purslane family (Portulacaceae) with adoption of the APG III system, which established the family Montiaceae. Description ''Lewisia rediviva'' is a low-growing perennial plant with a fleshy taproot and a simple or branched base. The flower stems are leafless, tall, bearing at the tip a whorl of 5–6 linear bracts which are 5–10 mm long. A single flower appears on each stem with 5–9 oval-shaped sepals. They range in color from whitish to deep pink or lavender. Flowering occurs from April through July. The petals (usually about 15) are oblong in shape and are long. At maturity, the bitterroot produces egg-shaped capsules with 6–20 nearly round seeds. The thick roots come into season in spring and can survive extremel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewisia Rediviva
Bitterroot (''Lewisia rediviva'') is a small perennial herb in the family Montiaceae. Its specific epithet ("revived, reborn") refers to its ability to regenerate from dry and seemingly dead roots. The genus ''Lewisia'' was moved in 2009 from the purslane family (Portulacaceae) with adoption of the APG III system, which established the family Montiaceae. Description ''Lewisia rediviva'' is a low-growing perennial plant with a fleshy taproot and a simple or branched base. The flower stems are leafless, tall, bearing at the tip a whorl of 5–6 linear bracts which are 5–10 mm long. A single flower appears on each stem with 5–9 oval-shaped sepals. They range in color from whitish to deep pink or lavender. Flowering occurs from April through July. The petals (usually about 15) are oblong in shape and are long. At maturity, the bitterroot produces egg-shaped capsules with 6–20 nearly round seeds. The thick roots come into season in spring and can survive extremel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewisia Columbiana
''Lewisia columbiana'', the Columbian lewisia, is a species of flowering plant in the family Montiaceae. It is native to the western United States and British Columbia, where it grows in rocky mountain habitats. Description This herbaceous perennial grows from a short, thick taproot and caudex unit. It produces a basal rosette of many thick, fleshy, tapering, blunt-tipped or pointed leaves with smooth edges, each 2 to 10 centimeters long. The inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ... arises on several stems up to about 30 centimeters tall, each stem bearing an array of up to 100 flowers each. Just under the flower are small, pointed bracts tipped with shiny spherical resin glands. The flower has 4 to 11 petals, each up to about a centimeter in length and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewisia Brachycalyx
''Lewisia brachycalyx'' is a species of flowering plant in the family Montiaceae, known by the common name short-sepal bitter-root or shortsepal lewisia. It is native to the mountains of the southwestern United States and Baja California, where it grows in moist habitat such as meadows. Description ''Lewisia brachycalyx'' is a deciduous perennial growing from a short thick taproot and caudex unit. It produces a basal rosette of thick, fleshy, blunt-tipped narrow leaves up to 8 centimeters long. The inflorescence is under 4 centimeters tall, taking the form of a cluster of several flowers sitting atop the leaf rosette. Each flower has 5 to 9 shiny white or pink petals about 2 centimeters long. At the center are many stamens and stigmas clumped together. The Latin specific epithet ''brachycalyx'' means “having a short calyx”. The genus ''Lewisia'' was moved in 2009 from the purslane family (Portulacaceae) with adoption of the APG III system, which established the family Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewisia Cotyledon
''Lewisia cotyledon'' is a species of flowering plant in the family Montiaceae known by the common names Siskiyou lewisia and cliff maids. It is native to southern Oregon and northern California, where it grows in rocky subalpine mountain habitat. Description It is an evergreen perennial growing from a thick taproot and caudex unit. It produces a basal rosette of many thick, fleshy oval- or spoon-shaped leaves up to long. The specific epithet ''cotyledon'' ("small cup") refers to the shape of the leaves. Flowering from spring to summer, the inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ... arises on one or more stems tall, each stem bearing an array of up to 50 flowers. Near the flowers are small, pointed bracts tipped with resin glands. The flower has 7 to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewisia Cantelovii
''Lewisia cantelovii'' is an uncommon species of flowering plant in the family Montiaceae known by the common name Cantelow's lewisia. It is endemic to California, where it is known from the northeastern mountain ranges from the Klamath Mountains to the northern Sierra Nevada. It grows in rocky, moist mountain habitat. This is a perennial herb growing from a short, thick taproot and caudex unit. It produces a basal rosette of thick, fleshy, blunt-tipped spoon-shaped leaves with serrated edges. The inflorescence is a very slender erect stem up to 45 centimeters tall topped with a spreading panicle of flowers and glandular, toothed bracts. Each flower has 5 to 7 oval petals each one half to one centimeter long. The petals are white or very pale pink with sharp dark pink veins. At the center of the flower are five stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meriwether Lewis
Meriwether Lewis (August 18, 1774 – October 11, 1809) was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition, also known as the Corps of Discovery, with William Clark. Their mission was to explore the territory of the Louisiana Purchase, establish trade with, and sovereignty over the natives near the Missouri River, and claim the Pacific Northwest and Oregon Country for the United States before European nations. They also collected scientific data, and information on indigenous nations. President Thomas Jefferson appointed him Governor of Upper Louisiana in 1806. He died of gunshot wounds in what was either a murder or suicide, in 1809. Life and work Meriwether Lewis was born August 18, 1774, on Locust Hill Plantation in Albemarle County, Colony of Virginia, in the present-day community of Ivy. He was the son of William Lewis, of Welsh ancestry, and Lucy Meriwether, of English ancestr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western North America
Western North America is the western edge of the North American continent that borders the Pacific Ocean. It consists of Alaska at the farthest north, down through the western Canadian province of British Columbia, the western U.S. states of Washington, Oregon, and California, and then Mexico farthest south. The region consists of one long continuous mountain range formed over the last 350 million years through the movement of tectonic plates, as the large Pacific Plate submerged under the North American Plate through the process called subduction. See also * Pacific Northwest * Geologic timeline of Western North America * 2021 Western North America heat wave References {{Reflist Geography of North America Regions of North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada
Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the List of U.S. states and territories by area, 7th-most extensive, the List of U.S. states and territories by population, 32nd-most populous, and the List of U.S. states and territories by population density, 9th-least densely populated of the U.S. states. Nearly three-quarters of Nevada's people live in Clark County, Nevada, Clark County, which contains the Las Vegas–Paradise, NV MSA, Las Vegas–Paradise metropolitan area, including three of the state's four largest incorporated cities. Nevada's capital is Carson City, Nevada, Carson City. Las Vegas is the largest city in the state. Nevada is officially known as the "Silver State" because of the importance of silver to its history and economy. It is also known as the "Battle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Thomas Howell
John Thomas Howell (November 6, 1903 – May 7, 1994) was an American botanist and taxonomist. He became an expert of ''Eriogonum'' (buckwheat) species, which are widely represented in the native California flora. He was the assistant of Alice Eastwood (1859−1953), the renowned botanist and botanical collection director at the California Academy of Sciences in San Francisco, California. Taxa named for Howell The genera of '' Howelliella'' (in the family Plantaginaceae), '' Howellanthus'' (Scott Mountain phacelia) of the Boraginaceae family and also '' Johanneshowellia'' (Howell's buckwheat) of the family Polygonaceae, are all named in his honor. Taxa named by Howell See also *List of California native plants California native plants are plants that existed in California prior to the arrival of European explorers and colonists in the late 18th century. California includes parts of at least three phytochoria. The largest is the California Floristic ... * * Physocarpu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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