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Ivesia Callida
''Ivesia callida'' is a rare species of flowering plant, in the rose family, known by the common name Tahquitz mousetail. It is a small perennial herb which forms matted patches of hanging foliage on cliff faces. The leaves are strips of oval-shaped green leaflets. Each leaf is up to 7 centimeters long and has several pairs of hairy, glandular leaflets. The thin, green, hanging stems grow up to 15 centimeters long and bear an inflorescence of several flowers. Each flower has five hairy, pointed sepals and five round to oval white petals. The center of the flower contains twenty stamens with disc-shaped anthers and several pistils. The plant is endemic to the San Jacinto Mountains of Riverside County, California, where it is known from only two occurrences. The plant grows in cracks and crevices of granite mountain cliffs. It was named for Tahquitz Rock Tahquitz Peak (pronounced , sometimes ) is a granite, rock formation located on the high western slope of the San Jacinto mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Per Axel Rydberg
Per Axel Rydberg (July 6, 1860 – July 25, 1931) was a Swedish-born, American botanist who was the first curator of the New York Botanical Garden Herbarium. Biography Per Axel Rydberg was born in Odh, Västergötland, Sweden and emigrated to the United States in 1882. From 1884 to 1890, he taught mathematics at Luther Academy in Wahoo, Nebraska, while he studied at the University of Nebraska. He graduated from the University of Nebraska–Lincoln (B.S. in 1891) and (M.A. in 1895). He earned his graduate degree from Columbia University (Ph.D. in 1898). After he graduated, Rydberg received a commission from the United States Department of Agriculture to undertake a botanical exploration of western Nebraska. He received another one in 1892 to explore the Black Hills of South Dakota, and in 1893 he was in the Sand Hills, again in western Nebraska. During this time he continued to teach at the Luther Academy. In 1900 Rydberg conducted field work in southeast Colorado. In 1901 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or ''granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark minerals. Granite is nearly alway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural History Of The Peninsular Ranges
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. The word ''nature'' is borrowed from the Old French ''nature'' and is derived from the Latin word ''natura'', or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, ''natura'' is mostly used as the Latin translation of the Greek word ''physis'' (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord. The concept of nature as a whole, the physical universe The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Riverside County, California
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. The corresponding term for animals is ''fauna'', and for fungi, it is ''funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of California
Endemism is the state of a species being found 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 be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ivesia
''Ivesia is also a synonym for the Nesticus spider genus''. ''Ivesia'' is a genus of flowering plants in the rose family known generally as mousetails. They are perennial herbs native to western North America, especially the western United States. Plants of this genus are sometimes treated as members of genus ''Potentilla''. Species include: *'' Ivesia aperta'' — Sierra Valley mousetail *'' Ivesia argyrocoma'' — silverhair mousetail *'' Ivesia arizonica'' — rock whitefeather *'' Ivesia baileyi'' — Bailey's ivesia *''Ivesia callida'' — Tahquitz mousetail *'' Ivesia campestris'' — field mousetail *'' Ivesia cryptocaulis'' — Charleston Peak mousetail *'' Ivesia gordonii'' — Gordon's ivesia *'' Ivesia jaegeri'' — Jaeger's mousetail *'' Ivesia kingii'' — King's mousetail *'' Ivesia longibracteata'' — longbract mousetail *''Ivesia lycopodioides'' — clubmoss mousetail *'' Ivesia muirii'' — granite mousetail *'' Ivesia multifoliolata'' — manyleaf mousetail *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tahquitz (spirit)
Tahquitz (, sometimes ) is a spirit found in the legends of the Cahuilla, Kumeyaay and Luiseño Native American people of Southern California. Accounts of the legend vary significantly, but most agree that Tahquitz represents evil or death, and his spirit makes its home on Mount San Jacinto. Some accounts report that he steals people and/or their souls and devours them on the mountain. Tahquitz manifests himself in the form of fireballs, lighting, meteors and thunderous sounds on the mountain and in the canyons.Gudde, p. 352.Gunther, pp. 521–524. Agua Caliente Legend Some accounts of the legend state that Tahquitz Canyon played a key role in the story. The canyon is located on the Agua Caliente reservation lands, and is an important cultural site. The tribal group's web page dedicated to the canyon describes ''The Legend of Taquitz'' as follows: ''Mukat's People'' Author Lowell John Bean, in his book ''Mukat's People; The Cauilla Indians of Southern California'', applies a di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tahquitz Rock
Tahquitz Peak (pronounced , sometimes ) is a granite, rock formation located on the high western slope of the San Jacinto mountain range in Riverside County, Southern California, United States, above the mountain town of Idyllwild. Tahquitz has a steep approach hike (approximately 800-foot elevation gain in a half mile), leading to a roughly 1000-foot face. Tahquitz, which can refer to both the rock outcrop and the outcrop's parent peak, is a popular hiking destination to the fire lookout station and the rock climbing area. The Yosemite Decimal System, widely used in North America to classify hiking and climbing routes, was developed into its modern form at Tahquitz Peak. Description Tahquitz Peak can be reached from one of several trails, and is only a half-mile deviation from the Pacific Crest Trail. The most direct route is the South Ridge trail starting in Idyllwild, California. This trail is a direct hike to the peak and is typically used as an "out and back" route, four ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riverside County, California
Riverside County is a County (United States), county located in the southern California, southern portion of the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 2,418,185, making it the fourth-most populous county in California and the List of the most populous counties in the United States, 10th-most populous in the United States. The name was derived from the city of Riverside, California, Riverside, which is the county seat. Riverside County is included in the Riverside-San Bernardino, California, San Bernardino-Ontario, California, Ontario Metropolitan Statistical Area, also known as the Inland Empire. The county is also included in the Los Angeles-Long Beach, California, Long Beach Greater Los Angeles Area, Combined Statistical Area. Roughly rectangular, Riverside County covers in Southern California, spanning from the greater Los Angeles area to the Arizona border. Geographically, the county is mostly desert in the central a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosaceae
Rosaceae (), the rose family, is a medium-sized family of flowering plants that includes 4,828 known species in 91 genera. The name is derived from the type genus ''Rosa''. Among the most species-rich genera are ''Alchemilla'' (270), ''Sorbus'' (260), '' Crataegus'' (260), ''Cotoneaster'' (260), ''Rubus'' (250), and ''Prunus'' (200), which contains the plums, cherries, peaches, apricots, and almonds. However, all of these numbers should be seen as estimates—much taxonomic work remains. The family Rosaceae includes herbs, shrubs, and trees. Most species are deciduous, but some are evergreen. They have a worldwide range but are most diverse in the Northern Hemisphere. Many economically important products come from the Rosaceae, including various edible fruits, such as apples, pears, quinces, apricots, plums, cherries, peaches, raspberries, blackberries, loquats, strawberries, rose hips, hawthorns, and almonds. The family also includes popular ornamental trees and shrubs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Jacinto Mountains
The San Jacinto Mountains (''Avii Hanupach''Munro, P., et al. ''A Mojave Dictionary''. Los Angeles: UCLA. 1992. in Mojave) are a mountain range in Riverside County, located east of Los Angeles in southern California in the United States. The mountains are named for one of the first Black Friars, Saint Hyacinth (San Jacinto in Spanish), who is a popular patron in Latin America. Geography The range extends for approximately from the San Bernardino Mountains southeast to the Santa Rosa Mountains. The San Jacinto Mountains are the northernmost of the Peninsular Ranges, which run from Southern California to the southern tip of the Baja California Peninsula. The highest peak in the range is San Jacinto Peak (3,302 m; 10,834 ft), and the range is also a Great Basin Divide landform for the Salton Watershed to the east. The Coachella Valley stretches along the eastern side of the range, including the cities of Palm Springs and Rancho Mirage. San Gorgonio Pass separates th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found 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 be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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