Common Names. Leaves are linear, flat or folded, 10 in. Management of Panicum repens involves the repeated application of herbicides. Preventive control can be accomplished by preventing the spread and fragmentation of rhizomes. Therefore, a healthy ecosystem with good species diversity will help to deter infestation. The rhizomes are extensive and stems are rigid. It was deliberately planted throughout South Florida and it easily escaped cultivation,[6] eventually becoming "one of the most serious weeds in Florida," spreading to more than 70% of the waterways in the state. Torpedograss has not yet been listed on the Federal or State Noxious Weed List. (26 cm) long, 0.3 in. Foliage. Torpedograss produces spikelets that are stalked with white and yellow flowers. Here, the top 30 cm of the soil consisted predominantly of sand. Weed Science. The rhizomes are extensive and stems are rigid. It was introduced to the United States in seed for forage grasses and probably in ballast water from ships. Its exact native range is obscure. (26 cm) long, 0.3 in. It grows on many barrier islands. Torpedograss is a perennial grass that can reach up to 3 ft. (1 m) tall. Its exact native range is obscure. In India, it is widely spreaded in almost all the districts in Andra Pradesh, Assam, Bihar, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Orissa, Rajasthan, Sikkim, Tamil Nadu, Tripura and West Bengal (Cook 1996). Species Overview. Panicum repens L., Sp. Even if introduced into a small area, this weed can rapidly spread to become a major problem. Management of Panicum repens involves the repeated application of herbicides. Flora Vascular de Andalucía Occidental: Anuales. (GPWG 2001) : Subfamily Panicoideae. Archeological evidence suggests that the crop was first domesticated before 10,000 BCE in Northern China. Leaf blades are narrow, up to 10 inches long and approximately 1/4 inch wide. Introduction. Specified and limited uses may be considered by the IFAS Invasive Plants Working Group. Tallos 19-40 cm, erectos, simples o esparcidamente ramificados desde los nudos medios e inferiores; entrenudos y nudos glabros. Its exact native range is obscure. Weed Technology: Vol. Seed does not germinate well under Florida conditions. [5] In the Florida turfgrass industry, it is the second-worst weed known. 47(6): 651-656. It grows in or near shallow waters forming monocultures where it can quickly displace native vegetation. Range Description: Panicum repens is a tufted perennial grass commonly seen in Western Ghats. Torpedograss Synonyms. Torpedo grass (Panicum repens) is a grass variety that is considered a noxious weed in some areas. 58 (1753). Present: AL, CA, FL, HI, LA, MS, NC, SC, TX Panicum repens is an erect to decumbent, perennial grass with tough stems 30 - 125cm tall. Imazapyr (Arsenal, Chopper, Habitat) is also very effective at 0.5 to 1% solution. Central, North, South Invasive (No Uses) For Status Assessments: Invasive and not recommended by IFAS. This aggressive rhizomatous grass thrives in a variety of agricultural and natural settings, and is considered an invasive weed of terrestrial, wetland and aquatic environ- U.S. Panicum repens is a species of grass known by many common names, including torpedograss, creeping panic, panic rampant, couch panicum, wainaku grass, quack grass, dog-tooth grass, and bullet grass. Introduction. Pl. 2001. No known synonyms Conclusions by Zone. Sources suggest that the grass is native to "Africa and/or Asia", "Europe or Australia", "Eurasia", "Australia", "Europe, Asia, and Africa", or other specific regions, including the Mediterranean, Israel, and Argentina. Panicum repens frequently forms dense floating mats that impede water flow in ditches and canals and restrict recreational use of shoreline areas of lakes and ponds. ex Spreng.. Panicum grossarium Forssk.. Panicum ischaemoides Retz.. Panicum kiensieleense Vanderyst. Torpedograss is a perennial grass that can reach up to 3 ft. (1 m) tall. Panicum repens can reproduce sexually through flowering and seed production, though the principal means of propagation is reported to be rhizome extension and fragmentation (Holm et al. Panicum repens and I. cylindrica were found in areas that have soils with a sandy-loam character. Panicum repens and P. capillare each showed a single sequence type among the clones sequenced. Spreading aggressively from a rhizomatous rootstock, the plant can form extensive, dominant swards[ 266 The website also provides access to a database and images of plants photos and herbarium specimens found at … Growing Melinis repens Grow . Wechselwirkungen des Säuregrads und des Kalziumgehalts auf die Wirkung von Glyphosat auf Panicum repens L.. Glyphosat wurde in Lösungen mit 0 bis 5 mM Ca, sowohl auf pH=4, 6 oder 8 eingestellt oder nicht, auf Bestände von Panicum repens L. (Torpedogras) ausgebracht. In Florida, torpedograss is also a major problem for the citrus and golf course industries. The pointed shape of the rhizome tip gives the plant the name torpedograss. Effect of burial depth on emergence of Panicum repens. It has been called "one of the world's worst weeds. The largest infestations can be found in Lake Okeechobee where it displaces close to 7,000 acres of native marsh. It can also be found in more upland situations and is a frequent problem in sod production. Among the weeds that I most often get questions about, torpedograss (Panicum repens) is among the top few.Torpedograss is a scourge in area lawns, … They can reach a length of 6 m (20 ft) and a soil depth of 7 m (23 ft), and they can form a mat 15 cm (5.9 in) thick. Site Feedback. The rhizomes creep along the ground or float in water, forming floating mats. The grass rarely reproduces by seed. Se usa para limitar el porcentaje de solicitudes. Panicum miliaceum and P. sumatrense showed variation among clones that divided the clones into two distinct groups of sequences for each taxon, defined by the … Panicum virgatum(switchgrass) is a crop grass widespread in its native North America (Missaoui et al., 2005), where it is widely planted for forage and conservation, and is a current target of development for a biofuel crop (Saski et al., 2011; Triplett et al., 2012). "[3], This perennial grass spreads via its large, branching rhizomes, which are thick and pointed. Melinis repens occurs in disturbed areas and is a pioneer species. Torpedograss is a non-native grass. The diuretic activity of ethanolic extract of Panicum repens was investigated in rats. Excerpted from University of Florida, IFAS Extension, Circular 1529, Invasive Species Management Plans for Florida, 2008 by Panicum repens is an erect to decumbent, perennial grass with tough stems 30 - 125cm tall. The rhizome can endure drying and flooding. A 2 to 3% solution of glyphosate (Roundup, etc.) Torpedograss is most difficult to control when partially submersed in water. Panicum repens L., which was not yet reported at national herbariums (National Herbarium, and Biology School of the University of Costa Rica) or in specialized literature of the subject. Brown. Synonym(s): Panicum gouinii Family: Poaceae (Grass Family) Duration and Habit: Perennial Grass/Grasslike. [9] The grass can grow in a variety of habitats, but it does not tolerate cold and it is rarely found above subtropical latitudes or at altitude. 3 vols. Description P. repens is a perennial grass that frequently forms dense colonies and has long, creeping rhizomes. Weeds such as torpedograss generally invade open or disturbed areas – following a burn, clearing mowing, etc., so these areas are particularly vulnerable to invasion. [6] It is present in many places as an introduced species and often a noxious weed. Esta cookie se crea cuando un programador usa el método _setCustomVar con una variable personalizada a nivel de visitante. The plant is grayish-green with thin hairs on the upper surface. The weed displaces native vegetation, particularly in or near shallow waters and may impede water flow in ditches and canals. Application timing of asulam for torpedograss (Panicum repens L.) control in sugarcane in Okinawa Island. Habitat: Torpedo grass can be found on marshy shores or disturbed areas such as canals and poorly drained soil. Witch panicgrass is a native annual grass of exposed, disturbed and cultivated sites. Problems Caused Torpedograss (Panicum repens L.) is a nonnative riparian, wetland and terrestrial plant native to Eurasia and is considered one of the World’s worst weeds.It is also known as quack grass and bullet grass. Problems Caused Torpedograss (Panicum repens L.) is a nonnative riparian, wetland and terrestrial plant native to Eurasia and is considered one of the World’s worst weeds.It is also known as quack grass and bullet grass. Torpedograss (Panicum repens) is among the top grasses I get questions on. 15, No. Common Names. A voucher may be a record of a plant's occurrence in a particular area, or a specific example of a plant used in a scientific investigation. Panicum repens is a perennial grass that frequently forms dense colonies and has long, creeping rhizomes. The stems and rhizomes also produce tillers. Panicum repens. Panicum miliaceum is a grain crop with many common names including proso millet, broomcorn millet, common millet, hog millet, Kashfi millet, red millet, and white millet. Torpedo grass has no tolerance for cold weather and will die off following a frost thus limiting the possible range to the southern United States. Spreading aggressively from a rhizomatous rootstock, the plant can form extensive, dominant swards[ 266 It is a bane in coastal lawns and gardens. No subordinate taxa. Will be reassessed every 10 years. 732–736. 2, 87 (1762). Its exact native range is obscure. Panicum kinshasaense Vanderyst. Uses Use . By 1992, torpedograss had taken over 70% of Florida’s public waters. Weed Technology: Vol. Panicum leiogonum Delile. A voucher specimen is a pressed and thoroughly dried plant sample deposited in a herbarium, and is intended to be a permanent record supporting research purposes. [6] It has been noted to reproduce by seed in Portugal,[9] but does not do so in the United States,[10] and it was described as "incapable of fruiting" in Japan. Appearance. The third area investigated was a rain-fed grassland (S19° 39.06′ E23° 21.53′), located in an area that had not received flooding for several years, and possibly for decades. [6] Torpedograss management in flood-control systems costs an estimated US$2 million per year. Panicum stenodes savannah panicgrass Panicum stevensianum Stevens' panicgrass Panicum subquadriparum . 1999, Brecke et al. Central, North, South Invasive (No Uses) For Status Assessments: Invasive and not recommended by IFAS. 2001). Chandrasena JPNR, 1991. Specified and limited uses may be considered by the IFAS Invasive Plants Working Group. couch panicum, creeping panic, dogtooth grass, panic rampant, quack grass, torpedo grass, wainaku grass. Taxonomic characteristics for the identification of Panicum repens are included for its identification. Dry or wet conditions may reduce the number of shoots produced by the rhizome, but they do not kill it. Will be reassessed every 10 years. In addition, imazapyr has soil activity, so care must be exercised around sensitive species such as oaks (Quercus spp.). 1999. Origin: Old World. Género: Panicum. Foliage Leaves are linear, flat or folded, 10 in. Britton, N.L., and A. Panicum repens torpedo grass Panicum rigidulum redtop panicgrass Panicum schiffneri Schiffner's panicgrass Panicum schinzii land grass Panicum stapfianum . https://www.fs.fed.us/database/feis/plants/graminoid/panrep/all.html Glyphosate has been the most effective herbicide used to control torpedograss. Application - … Pl. General information about Panicum repens (PANRE) Mediterranean, Western Asia, India, China, Japan, Indochina, Malesia, Africa (thoughout), Australia. A synonym of torpedo grass is Panicum gouinii. Torpedograss Synonyms. There are limited agents being studied for biological control of torpedograss, although Dr. Charudattan at the University of Florida has been evaluating a species of fungus. elatum Lojac., 1909 Homonyms Panicum repens L. Panicum repens Burm.f. Plants have long, creeping rhizomes with sharp-pointed (torpedo-like) tips. Torpedograss has a panicle-type inflorescence, 3-9 inches long. Native to Africa and/or Asia, it was introduced to the United States before 1876, primarily through seed used for forage crops. Birds eat the seeds and use the plant for nesting material. Mowing is only marginally effective. Indeed, it is still recommended for planting along shorelines to stabilize them. 17. Panicum … [3], The plant is established in sandy coastal habitat on the United States' Gulf Coast, such as beaches and dunes, from Florida to Texas, where it occurs with beach plants such as turtleweed (Batis maritima), saltgrass (Distichlis spicata), marsh fimbry (Fimbristylis castanea), largeleaf pennywort (Hydrocotyle bonariensis), and dwarf saltwort (Salicornia bigelovii). ed. Panicum repens* L. Sp. They grow erect or bend down. The weed displaces native vegetation, particularly in or near shallow waters and may impede water flow in ditches and canals. [6], The grass spreads primarily via its rhizome. In India, it is widely spreaded in almost all the districts in Andra Pradesh, Assam, Bihar, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Orissa, Rajasthan, Sikkim, Tamil Nadu, Tripura and West Bengal (Cook 1996). Torpedograss is in the family Poaceae, including grasses such as cogongrass and bermudagrass. Introduced into North, Central and South America, . (LINN-80.47).. Por G. Davidse.. Panicum gouinii Fourn.. Perennes rizomatosas. [3] Dense mats or stands of the grass cause hypoxia in the water. 732–736. Control of Torpedograss (Panicum repens) with Trifloxysulfuron-Sodium in Bermudagrass (Cynodon dactylon × Cynodon transvaalensis) Turf - Volume 20 Issue 2 - … However, it is not one of the more palatable or nutritious grasses. arenarium (Brot.) is very effective. Sources suggest that the grass is native to "Africa and/or Asia",[1] "Europe or Australia",[2] "Eurasia",[3] "Australia",[4] "Europe, Asia, and Africa",[5] or other specific regions, including the Mediterranean, Israel, and Argentina.

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