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Cerris
The genus ''Quercus'' contains about 500 species, some of which are listed here. The genus, as is the case with many large genera, is divided into subgenera and sections. Traditionally, the genus ''Quercus'' was divided into the two subgenera ''Cyclobalanopsis'', the ring-cupped oaks, and ''Quercus'', which included all the other sections. However, a comprehensive revision in 2017 identified different relationships. Now the genus is commonly divided into a subgenus ''Quercus'' and a sugenus ''Cerris'', with ''Cyclobalanopsis'' included in the latter. The sections of subgenus ''Quercus'' are mostly native to the New World, with the notable exception of the white oaks of sect. ''Quercus'' and the endemic Quercus pontica. In contrast, the sections of the subgenus ''Cerris'' are exclusively native to the Old World. Legend Species with evergreen foliage ("live oaks") are tagged '#'. Species in the genus have been recategorized between deciduous and evergreen on numerous occasions, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Alba
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably '' Lithocarpus'' (stone oaks), as well as in those of unrelated species such as ''Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclobalanopsis
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably '' Lithocarpus'' (stone oaks), as well as in those of unrelated species such as '' Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Hiholensis Acorn UWBM 56470-3 Pigg & Wehr 2002 Plt2 Fig16
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably ''Lithocarpus'' (stone oaks), as well as in those of unrelated species such as ''Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. Man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Oak
Live oak or evergreen oak is any of a number of oaks in several different sections of the genus ''Quercus'' that share the characteristic of evergreen foliage. These oaks are not more closely related to each other than they are to other oaks. The name ''live oak'' comes from the fact that evergreen oaks remain green and "live" throughout winter, when other oaks are dormant and leafless. The name is used mainly in North America, where evergreen oaks are widespread in warmer areas along the Atlantic coast from southeast Virginia to Florida, west along the Gulf Coast to Louisiana and Mexico, and across the southwest to California. Evergreen oak species are also common in parts of southern Europe and south Asia, and are included in this list for the sake of completeness. These species, although not having "live" in their common names in their countries of origin, are colloquially called live oaks when cultivated in North America. When the term live oak is used in a specific rathe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Austrina
''Quercus austrina'', the bastard white oak or bluff oak, is an oak species that is endemic to the southeastern United States from Mississippi to the Carolinas, with a few isolated populations in Arkansas. ''Quercus austrina'' can grow to a height of 45 to 60 feet (13.5–18 meters) with a spread of 35 to 50 feet (10.5–15 m). Leaves are narrow, with shallow rounded lobes. It tends to grow in wet habitats, such as on river bluffs, river bottoms, and flatwoods, and generally over basic substrates, such as mafic rocks, shells, or calcareous sediment. ''Quercus austrina'' specimens have often been misidentified as either '' Q. sinuata'' or ''Q. nigra.'' Quercus austrina is tolerant to clay, sand, loam, acidic, and well-drained soils. Also, it requires a lot of sun and its drought tolerance is high. National champion The largest known bluff oak in the United States appeared on the National Register of Champion Trees The National Register of Champion Trees is a list of the lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus × Bebbiana
''Quercus'' × ''bebbiana'' (or ''Quercus bebbiana''), known as Bebb's oak, is a naturally occurring hybrid of white oak (''Quercus alba'') and burr oak (''Quercus macrocarpa''). It occurs where their ranges overlap in the eastern United States and eastern Canada. It was named for Michael Schuck Bebb (1833–1895), an Illinois botanist who specialized in willows (''Salix Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist so ...''). A tree reaching 15m, and available from specialty nurseries, its acorns are sweet enough to be palatable to humans. References {{DEFAULTSORT:Quercus x bebbiana bebbiana Flora of North America Plants described in 1904 Plant nothospecies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Berberidifolia
''Quercus berberidifolia'', the California scrub oak, is a small evergreen or semi-evergreen shrubby oak in the white oak section of ''Quercus''. It is a native of the scrubby hills of California, and is a common member of chaparral ecosystems. Description ''Quercus berberidifolia'' grows to tall, rarely to , and has sharply toothed, dull green leaves which are long and broad, leathery on their top surfaces and somewhat hairy underneath. The solitary or paired brown acorns are long and broad, and pointed or egg-shaped with thin caps when mature; they mature in about 6–8 months after pollination. In cooler, more exposed areas, scrub oak is usually a small, compact shrub, but in warm or sheltered areas the plant can spread out and grow several meters high. The epithet ''berberidifolia'' means "barberry-leaved," referring to the spiny leaf margins characteristic of ''Q. berberidifolia'' as well as of several species of ''Berberis.'' Other species The species is often k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Bicolor
''Quercus bicolor'', the swamp white oak, is a North American species of medium-sized trees in the beech family. It is a common element of America's north central and northeastern mixed forests. It can survive in a variety of habitats. It forms hybrids with bur oak where they occur together in the wild. Description ''Quercus bicolor'' grows rapidly and can reach tall with the tallest known reaching and lives up to 285 years. The bark resembles that of the white oak. The leaves are broad ovoid, long and broad, always more or less glaucous on the underside, and are shallowly lobed with five to seven lobes on each side, intermediate between the chestnut oak and the white oak. In autumn, they turn brown, yellow-brown, or sometimes reddish, but generally, the color is not as reliable or as brilliant as the white oak can be. The fruit is a peduncled acorn, , rarely , long and broad, maturing about six months after pollination. Swamp white oak may live up to 300 years. Dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus × Bimundorum
''Quercus × bimundorum'' (or ''Quercus bimundorum''), known as two worlds oak, is a naturally occurring hybrid of white oak, ''Quercus alba'' (from the New World), and pedunculate oak, ''Quercus robur ''Quercus robur'', commonly known as common oak, pedunculate oak, European oak or English oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native plant, native to most of Europe west of the Caucasus ...'' (introduced from the Old World). It occurs sporadically where they come in contact in the United States. A tree reaching 12m, there are commercial cultivars available, including 'Crimschmidt', trade designation , with a columnar growth form, and 'Midwest', trade designation , with a pyramidal growth form. References {{DEFAULTSORT:Quercus x bimundorum bimundorum Plants described in 1948 Plant nothospecies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Boyntonii
''Quercus boyntonii'' is a rare North American species of oak in the beech family. At present, it is found only in Alabama, although historical records say that it formerly grew in Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ... as well. It is commonly called the Boynton sand post oak or Boynton oak. ''Quercus boyntonii'' is a rare and poorly known species. It is a shrub or small tree, sometimes reach a height of 6 meters (20 feet) but usually smaller. Leaves are dark green, hairless and shiny on the upper surface, covered with many gray hairs on the underside. References External links boyntonii Flora of Alabama Endemic flora of the United States Trees of the Southeastern United States Plants described in 1901 Endangered flora of the United States Taxonomy ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Ariifolia
''Quercus ariifolia'' is a species of oak native to the Sierra Madre Oriental of Mexico. Description ''Quercus ariifolia'' belongs to the ''Quercus rugosa'' group of species. The species of this group are characterized by obovate, occasionally broadly obovate or oblanceolate, leaves, with a strongly rugose upper surface and with clustered trichomes on the lower surface.Valencia Avalos, Susana (2010). "Notes on the Genus ''Quercus'' in Mexico". ''International Oak Journal'' No. 21 Spring 2010 Range and habitat ''Quercus ariifolia'' is native to the southern Sierra Madre Oriental, where it is found in the states of Puebla, Hidalgo (state), Hidalgo, Querétaro, and San Luis Potosí. It inhabits seasonally dry forests. References {{Taxonbar, from=Q111328361 Quercus, ariifolia Flora of the Sierra Madre Oriental Endemic oaks of Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Brandegeei
''Quercus brandegeei'' is a rare Mexican species of plant in the beech family, Fagaceae, in the oak genus ''Quercus'', series '' Virentes''. It has been found only in the southern part of the State of Baja California Sur in northwestern Mexico. ''Quercus brandegeei'' is an evergreen tree up to tall. Leaves are elliptical, not lobed, the blades up to long and tapering at both ends, sometimes with no teeth on the edge but sometimes with a few pointed teeth. Its habitat is restricted to stream-side locations. The species is listed as endangered by the IUCN Red List and threatened by long-term climatic drying and habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References External link The mystery of Mexico's vanishing stream oaks BBC Future brandegeei Endem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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