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Oplismenus
''Oplismenus'' is a small genus of annual or perennial grasses, commonly known as basketgrass, found throughout the tropics, subtropics, and in some cases, temperate regions of the Americas, Africa, Asia, and Australia. The systematics of the genus are unclear, with over 100 described species, only 7 species are officially recognized as of 2016. Accepted species The following list includes all currently recognized species of the genus ''Oplismenus'' accepted by the Catalogue of Life and World Checklist of Selected Plant Families as of March 2016, sorted alphabetically. For each, binomial name is followed by author citation. Description The members of this genus are scrambling or trailing herbaceous grasses, both annual and perennial. The stems trail along the ground and can root at the nodes. The leaf blades are generally lance-shaped or acuminate to ovate and are covered in scattered hairs, and the leaf sheaths are hairy. Ecology These plants generally grow in shaded habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Fujianensis
''Oplismenus'' is a small genus of annual or perennial grasses, commonly known as basketgrass, found throughout the tropics, subtropics, and in some cases, temperate regions of the Americas, Africa, Asia, and Australia. The systematics of the genus are unclear, with over 100 described species, only 7 species are officially recognized as of 2016. Accepted species The following list includes all currently recognized species of the genus ''Oplismenus'' accepted by the Catalogue of Life and World Checklist of Selected Plant Families as of March 2016, sorted alphabetically. For each, binomial name is followed by author citation. Description The members of this genus are scrambling or trailing herbaceous grasses, both annual and perennial. The stems trail along the ground and can root at the nodes. The leaf blades are generally lance-shaped or acuminate to ovate and are covered in scattered hairs, and the leaf sheaths are hairy. Ecology These plants generally grow in shaded habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Flavicomus
''Oplismenus'' is a small genus of annual or perennial grasses, commonly known as basketgrass, found throughout the tropics, subtropics, and in some cases, temperate regions of the Americas, Africa, Asia, and Australia. The systematics of the genus are unclear, with over 100 described species, only 7 species are officially recognized as of 2016. Accepted species The following list includes all currently recognized species of the genus ''Oplismenus'' accepted by the Catalogue of Life and World Checklist of Selected Plant Families as of March 2016, sorted alphabetically. For each, binomial name is followed by author citation. Description The members of this genus are scrambling or trailing herbaceous grasses, both annual and perennial. The stems trail along the ground and can root at the nodes. The leaf blades are generally lance-shaped or acuminate to ovate and are covered in scattered hairs, and the leaf sheaths are hairy. Ecology These plants generally grow in shaded habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Undulatifolius
''Oplismenus undulatifolius'', commonly known as wavyleaf basketgrass, is a species of perennial grass from the family Poaceae that is native to Eurasia, specifically Southern Europe through Southern Asia. Due to its invasive nature, it can be found in countries such as Pakistan (Punjab & Kashmir), China, Japan, Korea, India, Australia, South Africa, and has since been introduced to the Mid-Atlantic United States. There are no recognized subspecies in Catalogue of Life. Description ''Oplismenus undulatifolius'' is a shallow rooted perennial with stolons that may grow to several feet in length. The leaves of overwintering plants become brown and dead, but in the spring, new growth begins at the upper nodes of the stolons. In early fall, the sticky awns readily adhere to anything that brushes against them which makes for an effective mode of dispersal. The species is long with leaf-blades being slightly lanceolate, ovate, and are long and wide. Its inflorescence is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Hirtellus
''Oplismenus hirtellus'' (commonly known as basket grass) is a flowering perennial plant from the family Poaceae that can be found on every continent in the world except Antarctica, growing mostly in coastal tropic and subtropic regions as well as tropical and subtropical islands such as Hawaii, New Zealand, Australia and Madagascar. Description The species flowering stalk is located above the leaves with the sticky purple colored awns. Flowers appear from December to June. It grows high and has some hairs which have 10-15 nerves on either side. The plant is whitish on the lower surface and is very narrow near midrib. It is self-pollinated plant whose seeds attract various animals and birds. The sticky seeds are easily distributed by animals and humans, easily adhering to fur and clothing. Distribution In the United States ''Oplismenus hirtellus'' is considered native to the southeastern United States, growing in Alabama, Arkansas, Florida, Georgia, Louisiana, Mis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Compositus
''Oplismenus compositus'', the running mountaingrass, is a species of perennial plant from the family Poaceae that can be found throughout Asia (Pakistan China), Africa, Australia, South America, Mexico and Hawaii. Description The plant is long. The leaves are lanceolate, ovate, are long and wide. It leaf blades are and have obscure cross veins with an apex which is acuminate or slightly acute. ''O. compositus'' have a raceme which is composed from inflorescence. It is borne on a side of central axis, is unilateral and is long. The central inflorescence axis long with angular rachis and is either glabrous or pilose on the bottom. Spikelets come in 2 rows which are fertile, pedicelled, and sessile. The pedicels are oblong. The spikelets also have one basal sterile florets and one fertile florets while its rhachilla is not extended. They are in length and are lanceolate. The glume is shorter than a spikelet and thinner than fertile lemma. It lower glume is ovate with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Burmannii
''Oplismenus burmannii'' (commonly known as Burmann's basketgrass) is a flowering plant that can be found in Florida and on Hawaii, but is native to Zimbabwe. Description The plant's leaves are long and wide and are undulate as well. Its glumes are of pinkish-red colour and are much longer than the spikelet. Its inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ... is and consists of a small number of short racemes, which have spikelets on them, which are attached to the central axis. Habitat It is found on elevation of . References External links * burmannii Grasses of Africa Endemic flora of Zimbabwe Taxa named by Palisot de Beauvois {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplismenus Thwaitesii
''Oplismenus thwaitesii'' is a flowering plant that is endemic to India. Description The species' culms are prostrate and are long. The leaf-blades are ovate and are long and wide. It has an obscure cross veins venation. The species also has 3–4 unilateral racemes which are located along the central axis, and are long. The central part of the inflorescence axis is long. It also has angular rachis which bottom is glabrous. The spikelets grow in pairs and are apart from each other. They are also fertile, pedicelled, and sessile, with pedicels being oblong. They grow in a cluster of 2 and are subequal. Glumes are shorter than a spikelet and thinner than fertile lemma. The lower glume is ovate and have a pubescent surface. Its apex is acute and 1 awned. The awn is long, has no vesture, but is scaberulous. The upper glume is ovate as well but is herbaceous, 1-keeled and has veins of 5–7. Just like the lower glume, it is pubescent on the bottom but has an obtuse apex whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Checklist Of Selected Plant Families
The World Checklist of Selected Plant Families (usually abbreviated to WCSP) is an "international collaborative programme that provides the latest peer reviewed and published opinions on the accepted scientific names and synonyms of selected plant families." Maintained by the Royal Botanic Gardens, Kew, it is available online, allowing searches for the names of families, genera and species, as well as the ability to create checklists. The project traces its history to work done in the 1990s by Kew researcher Rafaël Govaerts on a checklist of the genus ''Quercus''. Influenced by the Global Strategy for Plant Conservation, the project expanded. , 173 families of seed plants were included. Coverage of monocotyledon families is complete; other families are being added. There is a complementary project called the International Plant Names Index (IPNI), in which Kew is also involved. The IPNI aims to provide details of publication and does not aim to determine which are accepted spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C3 Carbon Fixation
carbon fixation is the most common of three metabolic pathways for carbon fixation in photosynthesis, along with and CAM. This process converts carbon dioxide and ribulose bisphosphate (RuBP, a 5-carbon sugar) into two molecules of 3-phosphoglycerate through the following reaction: :CO2 + H2O + RuBP → (2) 3-phosphoglycerate This reaction was first discovered by Melvin Calvin, Andrew Benson and James Bassham in 1950. C3 carbon fixation occurs in all plants as the first step of the Calvin–Benson cycle. (In and CAM plants, carbon dioxide is drawn out of malate and into this reaction rather than directly from the air.) Plants that survive solely on fixation ( plants) tend to thrive in areas where sunlight intensity is moderate, temperatures are moderate, carbon dioxide concentrations are around 200 ppm or higher, and groundwater is plentiful. The plants, originating during Mesozoic and Paleozoic eras, predate the plants and still represent approximately 95% of Eart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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