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Pine Hill Ecological Reserve
Pine Hill Ecological Reserve is a nature reserve of located due east of Folsom Lake in the Sierra Nevada foothills, in El Dorado County, California. The reserve was established in 1979, and is managed by the Bureau of Land Management. The Pine Hill Ecological Reserve is one unit of the much larger Pine Hill Preserve system that consists of five separate units of varying size that total more than and protects eight rare plants and their gabbro soil habitat. It is jointly managed by several local, state and federal agencies through a Cooperative Management Agreement. History Preservation efforts started in 1977, when surplus lands managed by the California Department of Forestry were to be disposed of in the Pine Hill area. Environmental groups joined to urge the state to set aside significant natural areas from development and by 1979, the summit of Pine Hill became a state-owned ecological reserve of . In 1991, were added by the Bureau of Land Management (BLM), and in 2002 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Dorado County, California
El Dorado County (), officially the County of El Dorado, is a county located in the U.S. state of California. As of the 2020 census, the population was 191,185. The county seat is Placerville. The County is part of the Sacramento- Roseville-Arden-Arcade, CA Metropolitan Statistical Area. It is located entirely in the Sierra Nevada, from the historic Gold Country in the western foothills to the High Sierra in the east. El Dorado County's population has grown as Greater Sacramento has expanded into the region. Where the county line crosses US 50 at Clarksville, the distance to Sacramento is 15 miles. In the county's high altitude eastern end at Lake Tahoe, environmental awareness and environmental protection initiatives have grown along with the population since the 1960 Winter Olympics, hosted at the former Squaw Valley Ski Resort in neighboring Placer County. History What is now known as El Dorado County has been home to the Maidu, Nisenan, Washoe, and Miwok Indigenous A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morning Glory
Morning glory (also written as morning-glory) is the common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose current taxonomy and systematics are in flux. Morning glory species belong to many genera, some of which are: * ''Argyreia'' * '' Astripomoea'' * ''Calystegia'' * ''Convolvulus'' * ''Ipomoea'' (the largest genus) * '' Lepistemon'' * ''Merremia'' * ''Operculina'' * '' Rivea'' * ''Stictocardia'' As the name suggests, most ''morning'' glory flowers unfurl into full bloom in the early morning. The flowers usually start to fade a few hours before the corolla begins to display visible curling. They prefer full solar exposure throughout the day, and mesic soils. Some morning glories, such as ''Ipomoea muricata'', ''Ipomoea alba'', and ''Ipomoea macrorhiza'', are night-blooming flowers. History ''Ipomoea nil'', a species of morning glory, was first known in China for its medicinal uses, due to the laxative properties of its seeds. Ancient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coffea
''Coffea'' is a genus of flowering plants in the Family (biology), family Rubiaceae. ''Coffea'' species are shrubs or small trees native to tropical and southern Africa and tropical Asia. The seeds of some species, called coffee beans, are used to flavor various beverages and products. The fruits, like the seeds, contain a large amount of caffeine, and have a distinct sweet taste and are often juiced. The plant ranks as one of the world's most valuable and widely traded commodity crops and is an important export product of several countries, including those in Central and South America, the Caribbean and Africa. Cultivation and use There are over 120 species of ''Coffea'', which is grown from seed. The two most popular are ''Coffea arabica'' (commonly known simply as "Arabica"), which accounts for 60–80% of the world's coffee production, and ''Coffea canephora'' (known as "Robusta coffee, Robusta"), which accounts for about 20–40%. '' C. arabica'' is preferred for its s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
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] |
Galium Californicum
''Galium californicum'' is a species of flowering plant in the coffee family known by the common name California bedstraw. The plant is endemic to California. It grows mainly in moist, shady habitats in hills and mountainous areas, often within the California chaparral and woodlands ecoregion. Description ''Galium californicum'' is a variable plant in the form of a small perennial herb to a sprawling woody-based shrub approaching in height. Its stems and small oval-shaped leaves are hairy. The plant is dioecious with male plants producing small clusters of staminate flowers and female plants producing solitary flowers. Both types of flower are generally dull yellow. The fruit is a berry covered in soft hairs. Subspecies Seven subspecies of ''Galium californicum'', all endemic to California, are currently recognized: *''Galium californicum'' subsp. ''californicum'' — California bedstraw — endemic to the Santa Lucia Mountains of the Outer South California Coast Ranges. *'' ... [...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] |
Sterculiaceae
Sterculiaceae was a family of flowering plant based on the genus ''Sterculia''. Genera formerly included in Sterculiaceae are now placed in the family Malvaceae, in the subfamilies: Byttnerioideae, Dombeyoideae, Helicteroideae and Sterculioideae. As traditionally circumscribed the Sterculiaceae, Malvaceae, Bombacaceae, and Tiliaceae comprise the "core Malvales" of the Cronquist system and the close relationship among these families is generally recognized. Sterculiaceae may be separated from Malvaceae ''sensu stricto'' by the smooth surface of the pollen grains and the bilocular anthers. Numerous phylogenetic studies have revealed that Sterculiaceae, Tiliaceae and Bombacaceae as traditionally defined are cladistically polyphyletic. The APG and APG II systems unite Bombacaceae, Malvaceae ''sensu stricto'', Sterculiaceae and Tiliaceae into a more widely circumscribed Malvaceae, i.e., Malvaceae ''sensu lato''. In that view the taxa formerly classified in Sterculiaceae are treated in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theobroma Cacao
''Theobroma cacao'', also called the cacao tree and the cocoa tree, is a small ( tall) evergreen tree in the family Malvaceae. Its seeds, cocoa beans, are used to make chocolate liquor, cocoa solids, cocoa butter and chocolate. The largest producer of cocoa beans in 2018 was Ivory Coast, 2.2 million tons. Description Its leaves are alternate, entire, unlobed, long and broad. Flowers The flowers are produced in clusters directly on the trunk and older branches; this is known as cauliflory. The flowers are small, diameter, with pink calyx. The floral formula, used to represent the structure of a flower using numbers, is ✶ K5 C5 A(5°+52) (5). While many of the world's flowers are pollinated by bees ( Hymenoptera) or butterflies/moths ( Lepidoptera), cacao flowers are pollinated by tiny flies, ''Forcipomyia'' midges in the subfamily Forcipomyiinae. Using the natural pollinator ''Forcipomyia'' midges for ''Theobroma cacao'' was shown to have more fruit production th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fremontodendron Californicum
''Fremontodendron californicum'', with the common names California flannelbush, California fremontia, and flannel bush, is a flowering shrub native to diverse habitats in southwestern North America. Distribution ''Fremontodendron californicum'' is found in numerous habitats across California at elevations of , especially California chaparral and woodlands, Yellow Pine Forests, and Pinyon-juniper woodlands along the eastern San Joaquin Valley. It is found along the eastern San Joaquin Valley in the western foothills of the Sierra Nevada in chalky, sandy, nutritionally poor soils; on the east slope Cascade Range foothills of the northwest Sacramento Valley and the Klamath Mountains to the west; the California Coast Ranges throughout the state; the Transverse Ranges, and the Peninsular Ranges. It is also found in small, isolated populations in the mountains of central and western Arizona, in the Arizona transition zone-Mogollon Rim region, primarily in the Mazatzal Mountai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fremontodendron
''Fremontodendron'', with the common names fremontia and flannelbush or flannel bush, is a genus of three known species of shrubs native to the Southwestern United States and northwest Mexico. Taxonomy They are within the botanical family Malvaceae. Formerly they were treated within the Sterculiaceae, tribe Fremontodendreae, together with the genus '' Chiranthodendron''. The genus ''Fremontodendron'' was named in dedication to John C. Frémont, who first collected it during an 1846 expedition to Alta California. Description The leaves have a leathery and fuzzy texture reminiscent of flannel (hence the name), and the yellow to orange flowers are large and showy. The leaves and young shoots can cause skin and eye irritation. Species There are three species: * ''Fremontodendron californicum'' — Californian flannelbush * '' Fremontodendron decumbens'' (R. Lloyd) — Pine Hill flannelbush :: A decumbent and low spreading form, in height and in width, has yellow-orange fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Local Extinction
Local extinction, also known as extirpation, refers to a species (or other taxon) of plant or animal that ceases to exist in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with global extinctions. Local extinctions mark a change in the ecology of an area. In recent times, local extinction has sometimes been followed by a replacement of the species taken from other locations; wolf reintroduction is an example of this. The term "local extinction" is highly vernacular. The more proper biological term is ''extirpation''. Discussion Glaciation can lead to local extinction. This was the case during the 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 extirpated from islands over time. The number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Interior Chaparral And Woodlands
The California interior chaparral and woodlands ecoregion covers in an elliptical ring around the California Central Valley. It occurs on hills and mountains ranging from to . It is part of the Mediterranean forests, woodlands, and scrub biome, with cool, wet winters and hot, dry summers. Temperatures within the coast can range from 53° to 65 °F and 32° to 60 °F within the mountains. Many plant and animal species in this ecoregion are adapted to periodic fire. Geography The California interior chaparral and woodlands ecoregion extends from as far north as Shasta Lake in Northern California to as far south as the Santa Barbara Channel in Southern California. Despite being termed as "inland", this ecoregion features extensive coastline between the Central Coast towns of Goleta and San Simeon, as well as within the Monterey and San Francisco Bay areas. These coastal regions are broken up by isolated patches of Northern California coastal forests and California mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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