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Argyroxiphium Grayanum
''Argyroxiphium grayanum'', commonly known as the greensword, is a species of flowering plant in the family Asteraceae, and a member of the silversword alliance, a group of over 50 species which are diverse in morphology and habitat but are genetically closely related. The silversword alliance provides a convincing natural case study in evolution by adaptive radiation, with the greensword representing one extreme of the genus' plasticity. Some ''Argyroxiphium'', including the well-known Haleakala and Mauna Kea silverswords, live in harsh alpine desert-like conditions of heat, sun, wind, and aridity, and are drought-adapted plants capable of storing water as a gel in leaf structures which are normally air pockets in other plants. However, ''A. grayanum'' is a bog plant adapted to very different conditions – excessive moisture, lack of regular sunlight, and cool temperatures, and its leaves are non-succulent like those of the related genus '' Dubautia''. Description ''Argy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Hillebrand
Wilhelm or William Hillebrand (November 13, 1821 – July 13, 1886) was a German physician. He practiced medicine in several different countries, including for over 20 years in the Hawaiian Islands. In 1850, Hillebrand lived at what is now Foster Botanical Garden in Honolulu and gained acknowledgement as a botanist. Life and career Hillebrand was born on November 13, 1821, in Nieheim, Province of Westphalia, Prussia. His father was Judge Franz Josef Hillebrand, and mother Louise Pauline Konig. He studied medicine at Heidelberg and Berlin, and practiced at Paderborn. He sought a warmer climate to recover from a lung problem, (perhaps tuberculosis), first traveling to Australia in 1849, and then the Spanish East Indies, Philippines. Hillebrand then went to San Francisco and finally arrived in the Kingdom of Hawaii, Hawaii on December 22, 1850. He stayed for a little over 20 years and made significant contributions to local medical practice. He was able to speak the Hawaiian langu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argyroxiphium
''Argyroxiphium'' is a small genus of plants in the family Asteraceae. Its members are known by the common names silversword or greensword due to their long, narrow leaves and the silvery hairs on some species. The silverswords belong to a larger radiation of over 50 species, including the physically different genera '' Dubautia'' and '' Wilkesia''. This grouping is often referred to as the silversword alliance. . Baldwin. Age and Rate of Diversification of the Hawaiian Silversword Alliance (Compositae). 1998./ref> Botanist P. H. Raven referred to this radiation as "the best example of adaptive radiation in plants". Description Species in ''Argyroxiphium'' are perennial, rosette-forming shrubs. They may consist of a single large rosette or a collection of several rosettes. In all ''Argyroxiphium'' species, long, narrow leaves contain interstitial gels hypothesized to function as water storage. For some species, leaves are covered with trichomes that provide protection from f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlquistia
''Carlquistia'' is a rare North American genus of flowering plants in the family Asteraceae containing the single species ''Carlquistia muirii''. Formerly named ''Raillardiopsis muirii'', the plant was reexamined in the 1990s and moved to a new genus of its own, separate from similar and closely related genera, such as ''Madia''. Common names for the species include Muir's tarplant,''Carlquistia muirii''. The Jepson eFlora 2013 Muir's raillardiopsis, and Muir's raillardella. This plant is related to the silversword alliance of Hawaiian plants. The genus was named for the American botanist Sherwin Carlquist (1930–2021). The specific epithet ''"muirii"'' honors Scottish-American naturalist, John Muir (1838–1914). Description ''Carlquistia muirii'' is a rhizome, rhiz ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starr 980630-1521 Argyroxiphium Grayanum
Starr may refer to: People and fictional characters * Starr (surname), a list of people and fictional characters * Starr (given name), a list of people and fictional characters Places United States * Starr, Ohio, an unincorporated community * Starr, South Carolina, a town * Starr County, Texas * Starr Township, Cloud County, Kansas * Starr Township, Hocking County, Ohio * Starr Historic District, Richmond, Indiana * Mount Starr, a mountain in California Antarctica * Starr Peninsula, Ellsworth Land * Starr Lake (McMurdo Station), Ross Island * Starr Nunatak, Victoria Land Elsewhere * Starr Gate, a location in Blackpool, Lancashire, England * 4150 Starr, a minor planet Buildings * Starr House (other), various houses on the United States National Register of Historic Places * Starr Mill, Middletown, Connecticut, on the National Register of Historic Places * Starr Arena, a sports facility in Hamilton, New York, United States Ships * HMS ''Starr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argyroxiphium Virescens
''Argyroxiphium virescens'' was a species of flowering plant in the family Asteraceae that was last seen in 1945. It was found only in the Hawaiian Islands where it was endemic to the eastern part of Maui. Its natural habitats were subtropical or tropical moist montane forests and subtropical or tropical high-altitude shrubland. It is officially declared extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ..., but in 1989 plants were discovered that appear to be hybrids between it and the Haleakalā silversword. This hybrid is known as the Pu'u 'Alaea greensword. References virescens Endemic flora of Hawaii Extinct flora of Hawaii Plant extinctions since 1500 Taxonomy articles created by Polbot {{Madieae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatry
In biology, two closely related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter each other. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argyroxiphium Caliginis
''Argyroxiphium caliginis'', the Eke silversword, is a species of flowering plant in the family Asteraceae. It is found only in two Hawaiian tropical rainforest bogs in West Maui, Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta .... The species is threatened by damage to the bogs by rooting feral pigs, but the main population at Eke Crater is now protected by fencing. Retrieved on 2008-10-05 See also * Silversword alliance[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puu Kukui
Puu or Pu'u is a Hawaiian word for any protuberance, from a pimple to a hill, and can refer to: * Puu Kukui, mountain peak in Hawaii * Pu'u Huluhulu (Hawaii Route 200) *Puʻu ʻŌʻō Puu Ōō (also spelled Pu‘u‘ō‘ō, and often written Puu Oo, , ) is a volcanic cone on the eastern rift zone of Kīlauea volcano in the Hawaiian Islands. The eruption that created Puu Ōō began on January 3, 1983, and continued nearly co ... (Puu Oo), volcanic cone in Hawaii * Setsuna Meioh (Sailor Pluto), ''Sailor Moon'' character * Puu (YuYu Hakusho), a major secondary character from Yu Yu Hakusho {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maui
Maui (; Hawaiian language, Hawaiian: ) is the second largest island in the Hawaiian archipelago, at 727.2 square miles (1,883 km2). It is the List of islands of the United States by area, 17th-largest in the United States. Maui is one of Maui County, Hawaii, Maui County's five islands, along with Molokai, Molokai, Lanai, Lānai, Kahoʻolawe, Kahoolawe, and Molokini. In 2020, Maui had a population of 168,307, the third-highest of the Hawaiian Islands, behind Oahu, Oahu and Hawaii (island), Hawaii Island. Kahului, Hawaii, Kahului is the largest census-designated place (CDP) on the island, with a 2020 population of 28,219. It is Maui's commercial and financial hub. Wailuku, Hawaii, Wailuku is the county seat and was the third-largest CDP . Other significant populated areas include Kihei, Hawaii, Kīhei (including Wailea, Hawaii, Wailea and Makena, Hawaii, Makena in the Kihei Town CDP), Lahaina, Hawaii, Lāhainā (including Kaanapali, Kāanapali and Kapalua in the Lāhainā T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perennial Plant
In horticulture, the term perennial (''wikt:per-#Prefix, per-'' + ''wikt:-ennial#Suffix, -ennial'', "through the year") is used to differentiate a plant from shorter-lived annual plant, annuals and biennial plant, biennials. It has thus been defined as a plant that lives more than 2 years. The term is also loosely used to distinguish plants with little or no woody growth (secondary growth in Tree girth measurement, girth) from trees and shrubs, which are also technically ''perennials''. Notably, it is estimated that 94% of plant species fall under the category of perennials, underscoring the prevalence of plants with lifespans exceeding two years in the botanical world. Perennials (especially small flowering plants) that grow and bloom over the spring and summer, die back every autumn and winter, and then return in the spring from their rootstock or other overwintering structure, are known as Herbaceous plant, herbaceous perennials. However, depending on the rigours of the loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
