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Sassafras
''Sassafras'' is a genus of three extant and one extinct species of deciduous trees in the family Lauraceae, native to eastern North America and eastern Asia.Wolfe, Jack A. & Wehr, Wesley C. 1987. The sassafras is an ornamental tree. "Middle Eocene Dicotyledonous Plants from Republic, Northeastern Washington". ''United States Geological Survey Bulletin'' 1597:13 The genus is distinguished by its aromatic properties, which have made the tree useful to humans. Description Sassafras trees grow from tall with many slender sympodial branches and smooth, orange-brown bark or yellow bark. All parts of the plants are fragrant. The species are unusual in having three distinct leaf patterns on the same plant: unlobed oval, bilobed (mitten-shaped), and trilobed (three-pronged); the leaves are hardly ever five-lobed.Noble Plant Image GallerSassafras (includes photo of five-lobed leaf)/ref> Three-lobed leaves are more common in '' Sassafras tzumu'' and '' S. randaiense'' than in thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sassafras Albidum
''Sassafras albidum'' (sassafras, white sassafras, red sassafras, or silky sassafras) is a species of ''Sassafras'' native to eastern North America, from southern Maine and southern Ontario west to Iowa, and south to central Florida and eastern Texas. It occurs throughout the eastern deciduous forest habitat type, at altitudes of up to above sea level.Flora of North America''Sassafras albidum''/ref>U.S. Forest Service''Sassafras albidum'' (pdf file)/ref>Hope College, Michigan/ref> It formerly also occurred in southern Wisconsin, but is extirpated there as a native tree. Description ''Sassafras albidum'' is a medium-sized deciduous tree growing to tall, with a canopy up to wide, with a trunk up to in diameter, and a crown with many slender sympodial branches. The bark on trunk of mature trees is thick, dark red-brown, and deeply furrowed. The shoots are bright yellow green at first with mucilaginous bark, turning reddish brown, and in two or three years begin to show shallow f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sassafras Ashleyi
''Sassafras'' is a genus of three extant and one extinct species of deciduous trees in the family Lauraceae, native to eastern North America and eastern Asia.Wolfe, Jack A. & Wehr, Wesley C. 1987. The sassafras is an ornamental tree. "Middle Eocene Dicotyledonous Plants from Republic, Northeastern Washington". ''United States Geological Survey Bulletin'' 1597:13 The genus is distinguished by its aromatic properties, which have made the tree useful to humans. Description Sassafras trees grow from tall with many slender sympodial branches and smooth, orange-brown bark or yellow bark. All parts of the plants are fragrant. The species are unusual in having three distinct leaf patterns on the same plant: unlobed oval, bilobed (mitten-shaped), and trilobed (three-pronged); the leaves are hardly ever five-lobed.Noble Plant Image GallerSassafras (includes photo of five-lobed leaf)/ref> Three-lobed leaves are more common in '' Sassafras tzumu'' and '' S. randaiense'' than in thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sassafras Tzumu
''Sassafras tzumu'' (Chinese sassafras, Cha mu) is a species of ''Sassafras'' native to China, in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Sichuan, Yunnan and Zhejiang. It grows in either sparse or dense forests habitat types, at altitudes of . Description ''Sassafras tzumu'' is a deciduous tree reaching heights of up to . The longitudinally fissured wood is colored yellow-green, but changes to gray or brown when the plant is mature. The branching is sympodial. The leaves are alternate, gray-green, ovate or obovate, 9–18 cm long and 6–10 cm broad with 2-7 centimeter, slender, reddish petioles. Leaves may be two-lobed or three-lobed. Flowers are yellow and about 4 millimeters with blue-black and white waxy fruit. One historical source reports trees of up to , although this is not corroborated by modern sources. ''Sassafras tzumu'' and '' Sassafras randaiense'' differ from the North American species in that they may have both male flowers wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owensboro, Kentucky
Owensboro is a Home rule in the United States, home rule-class city in Daviess County, Kentucky, United States, of which it is also the county seat. It is the List of cities in Kentucky, fourth-most populous city in the state. Owensboro is located on U.S. Route 60 in Kentucky, U.S. Route 60 and Interstate 165 (Kentucky), Interstate 165 about southwest of Louisville, Kentucky, Louisville, and is the principal city of the Owensboro metropolitan area. The 2020 census had its population at 60,183. The metropolitan population was estimated at 116,506. The metropolitan area is the sixth largest in the state as of 2018, and the seventh largest population center in the state when including micropolitan areas. History Evidence of Indigenous peoples of the Americas, Native American settlement in the area dates back 12,000 years. Following a series of failed uprisings with British support, however, the last Shawnee were forced to vacate the area before the end of the 18th century. The fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lauraceae
Lauraceae, or the laurels, is a plant Family (biology), family that includes the bay laurel, true laurel and its closest relatives. This family comprises about 2850 known species in about 45 genus (biology), genera worldwide. They are dicotyledons, and occur mainly in warm temperate and tropical regions, especially Southeast Asia and South America. Many are aromatic evergreen trees or shrubs, but some, such as ''Sassafras'', are deciduous, or include both deciduous and evergreen trees and shrubs, especially in tropical and temperate climates. The genus ''Cassytha'' is unique in the Lauraceae in that its members are parasite, parasitic vines. Most laurels are highly poisonous. Overview The family has a worldwide distribution in tropical and warm climates. The Lauraceae are important components of tropical forests ranging from low-lying to Montane forest, montane. In several forested regions, Lauraceae are among the top five families in terms of the number of species present. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only plants that are usable as lumber, or only plants above a specified height. But wider definitions include taller palms, tree ferns, bananas, and bamboos. Trees are not a monophyletic taxonomic group but consist of a wide variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some trees reaching several thousand years old. Trees evolved around 400 million years ago, and it is estimated that there are around three trillion mature trees in the world currently. A tree typically has many secondary branches supported cle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dioecious
Dioecy ( ; ; adj. dioecious, ) is a characteristic of certain species that have distinct unisexual individuals, each producing either male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is biparental reproduction. Dioecy has costs, since only the female part of the population directly produces offspring. It is one method for excluding self-fertilization and promoting allogamy (outcrossing), and thus tends to reduce the expression of recessive deleterious mutations present in a population. Plants have several other methods of preventing self-fertilization including, for example, dichogamy, herkogamy, and self-incompatibility. In zoology In zoology, dioecy means that an animal is either male or female, in which case the synonym gonochory is more often used. Most animal species are gonochoric, almost all vertebrate species are gonochoric, and all bird and mammal species are gonochoric. Dioecy may also describe colonies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruit
In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propagated using the movements of humans and other animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; humans, and many other animals, have become dependent on fruits as a source of food. Consequently, fruits account for a substantial fraction of the world's agricultural output, and some (such as the apple and the pomegranate) have acquired extensive cultural and symbolic meanings. In common language and culinary usage, ''fruit'' normally means the seed-associated fleshy structures (or produce) of plants that typically are sweet (or sour) and edible in the raw state, such as apples, bananas, grapes, lemons, oranges, and strawberries. In botanical usage, the term ''fruit'' als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drupe
In botany, a drupe (or stone fruit) is a type of fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pip'' (UK), ''pit'' (US), ''stone'', or ''pyrena'') of hardened endocarp with a seed (''kernel'') inside. Drupes do not split open to release the seed, i.e., they are dehiscence (botany), indehiscent. These fruits usually develop from a single carpel, and mostly from flowers with Superior ovary, superior ovaries (polypyrenous drupes are exceptions). The definitive characteristic of a drupe is that the hard, woody (lignified) stone is derived from the Ovary (botany), ovary wall of the flower. In an aggregate fruit, which is composed of small, individual drupes (such as a raspberry), each individual is termed a drupelet, and may together form an aggregate fruit. Such fruits are often termed ''berries'', although botanists use a Berry (botany), different definition of ''berry''. Other fleshy fruits may have a stony enclosur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maastrichtian
The Maastrichtian ( ) is, in the International Commission on Stratigraphy (ICS) geologic timescale, the latest age (geology), age (uppermost stage (stratigraphy), stage) of the Late Cretaceous epoch (geology), Epoch or Upper Cretaceous series (stratigraphy), Series, the Cretaceous geologic period, Period or system (stratigraphy), System, and of the Mesozoic geologic era, Era or Erathem. It spanned the interval from . The Maastrichtian was preceded by the Campanian and succeeded by the Danian (part of the Paleogene and Paleocene). It is named after the city of Maastricht, the capital and largest city of the Limburg (Netherlands), Limburg province in the Netherlands. The Cretaceous–Paleogene extinction event (formerly known as the Cretaceous–Tertiary period, Tertiary extinction event) occurred at the end of this age. In this extinction event, mass extinction, many commonly recognized groups such as non-avian dinosaurs, plesiosaurs and mosasaurs, as well as many other lesser-kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
