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Liatris Compacta
''Liatris compacta'', sometimes called Arkansas gayfeather, is a herbaceous plant species in the family Asteraceae and genus ''Liatris''. It is native to the Ouachitas of west-central Arkansas and eastern Oklahoma in the central United States, where it is found growing in habitats such as rocky ridges, bluffs, hillsides, weathered sandstone, and open woods. It blooms in June to September and may start blooming as early as May, it has purple flowers grouped into heads. It was known as a variety of ''Liatris squarrosa'' as ''Liatris squarrosa var. compacta'' until relatively recently. Description ''Liatris compacta'' grows from rounded corms, that produce hairless stems 22 to 50 centimeters (8.8-20.0 inches) tall. The flowers are in heads with 18-25 flowers per head, the heads are produced singularly or in clusters of 2 to 5 heads. The heads have large leaf-like bracts under them; the stems attaching the heads to the main stem are 3 to 25 millimeters (0.12-1.00 inch) long. The hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Torrey
John Torrey (August 15, 1796 – March 10, 1873) was an American botany, botanist, chemist, and physician. Throughout much of his career, he was a teacher of chemistry, often at multiple universities, while he also pursued botanical work, focusing on the flora of North America. His most renowned works include studies of the New York flora, the Mexican Boundary, the Pacific railroad surveys, and the uncompleted ''Flora of North America''. Biography Torrey was born in New York City, the second child of Capt. William and Margaret (née Nichols) Torrey.Robbins, C. C. (1968). John Torrey (1796–1873), His Life & Times. ''Bulletin of the Torrey Botanical Club''. Vol. 95, No. Nov. 6–Dec. 1968, 515–645. Torrey Botanical Club, New York. He showed a fondness for mechanics, and at one time planned to become a machinist. When he was 15 or 16, his father received an appointment to the state prison at Greenwich Village, New York, where he was tutored by Amos Eaton, then a pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corm
A corm, bulbo-tuber, or bulbotuber is a short, vertical, swollen underground plant stem that serves as a storage organ that some plants use to survive winter or other adverse conditions such as summer drought and heat (perennation). The word ''cormous'' usually means plants that grow from corms, parallel to the terms ''tuberous'' and ''bulbous'' to describe plants growing from tubers and bulbs. Structure A corm consists of one or more internodes with at least one growing point, generally with protective leaves modified into skins or tunics. The tunic of a corm forms from dead petiole sheaths—remnants of leaves produced in previous years. They act as a covering, protecting the corm from insects, digging animals, flooding, and water loss. The tunics of some species are thin, dry, and papery, at least in young plants, however, in some families, such as ''Iridaceae'', the tunic of a mature corm can be formidable protection. For example, some of the larger species of '' Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Oklahoma
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. 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 (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Arkansas
Geobotanically, Arkansas belongs to the North American Atlantic Region. Rare Species A *Amorpha ouachitensis - Ouachita leadplant *Amorpha paniculata - Panicled indigobush * Amsonia hubrichtii - Ouachita blue star * Astragalus soxmaniorum - Soxmans' milk-vetch B C * Calamagrostis porteri ssp. insperata - Ofer hollow reed grass *Calamovilfa arcuata - A sandgrass *Carex decomposita - Epiphytic sedge *Carex latebracteata - Waterfall's sedge *Carex shinnersii - Shinner's sedge *Carex timida - A sedge * Castanea pumila var. ozarkensis - Ozark chinquapin * Chelone obliqua var. speciosa - Rose turtlehead *Cunila origanoides - American dittany, mountain oregano * Cyperus grayoides - Umbrella sedge * Cypripedium kentuckiense - Southern lady's-slipper D *Delphinium newtonianum - Moore's larkspur *Delphinium treleasei - Trelease's larkspur * Dodecatheon frenchii - French's shootingstar *Draba aprica - Open-ground whitlow-grass *Datura E * Echinacea paradoxa - Bush's yellow coneflower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corolla (flower)
Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include genera such as '' Aloe'' and ''Tulipa''. Conversely, genera such as ''Rosa'' and '' Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly colored tepals. Since they include Liliales, an alternative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liatris Cylindracea
''Liatris cylindracea'' (known as barrelhead blazing star, cylindric or cylindrical blazing star, Ontario blazing star, or dwarf blazing star) is a plant species in the family Asteraceae. It is native to eastern North America, where its populations are concentrated in the Midwestern United States. It is found in habitats such as prairies, limestone and sandstone outcroppings, bluffs, barrens, glades, woodlands and dunes. Description The cylindrical blazing star grows from rounded or sometimes elongated corms, which produce hairless stems tall. At the top of the stem is a single flower head or a loose to dense cluster (raceme, spike, or panicle) of 2 to 28 flower heads. Each flower head has 10–35 florets, and is stemless or has a stem long that orients the head upwards. The flowers bloom in mid to late summer, starting at the top of the cluster. The basal and cauline leaves usually have three nerves, though sometimes up to five. They are long and thin, ranging from long and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liatris Hirsuta
''Liatris hirsuta'', commonly called hairy gayfeather, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is found primarily in the Midwestern and South-Central regions of the United States. Its typical natural habitat is glades, rocky bluffs, and upland prairies. ''Liatris hirsuta'' is an erect perennial. It produces purple-pink flowers in the summer, from June to September. ''Liatris hirsuta'' is similar to ''Liatris squarrosa'', and some authors classify it with varietal status (''Liatris squarrosa'' var. ''hirsuta''). ''Liatris hirsuta'' is typically found to the west of the range over ''Liatris squarrosa'', but there are regions of co-occurrence. ''Liatris hirsuta'' can be distinguished from ''Liatris squarrosa'' by its short-tapering involucral bracts, and its comparatively straighter and more spreading hairs. ''Liatris squarrosa'' is also close to ''Liatris cylindracea ''Liatris cylindracea'' (known as barrelhead blazing s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) resulting from cross-pollination or allow selfing (fusion of sperm and egg from the same flower) when self-pollination occurs. There are two types of pollination: self-pollination and cross-pollination. Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is when pollen is transferred from the anther of one flower to the stigma of another flower on a different individual of the same species. Self-pollination happens in flowers where the stamen and carpel mature at the same time, and are positi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liatris Squarrosa
''Liatris squarrosa'', commonly called the scaly blazingstar, is an herbaceous perennial plant native to eastern and central North America, with most populations in the Southeastern United States. It is a somewhat conservative species, often found in dry or rocky areas of native prairie and savanna vegetation. It produces purple flowerheads in the summer. ''Liatris squarrosa'' is divided into distinct varieties which are sometimes treated as separate species. These are: * ''Liatris'' ''squarrosa'' var. ''glabrata'' - stems hairless; found in the Great Plains The Great Plains (french: Grandes Plaines), sometimes simply "the Plains", is a broad expanse of flatland in North America. It is located west of the Mississippi River and east of the Rocky Mountains, much of it covered in prairie, steppe, an ... * ''Liatris'' ''squarrosa'' var. ''squarrosa'' - stems pubescent; found in the eastern United States References squarrosa Flora of the United States {{Eupatorieae- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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