The Navajo also used the seeds for food and for feed for sheep and horses. Appearance. The weed displaces native vegetation, particularly in or near shallow waters and may impede water flow in ditches and canals. 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 repens. The rhizomes are extensive and stems are rigid. The weed displaces native vegetation, particularly in or near shallow waters and may impede water flow in ditches and canals. Panicum repens is a perennial grass that can reach up to 3 ft. (1 m) tall. The Hopi ground the seeds of witch panicgrass to use in cooking. The Alabama Plant Atlas is a source of data for the distribution of plants within the state as well as taxonomic, conservation, invasive, and wetland information for each species. In Florida, torpedograss is also a major problem for the citrus and golf course industries. [1] In Hawaii, it is a weed of sugarcane (Saccharum officinarum). Panicum polyphyllum Peter. 732–736. Panicum pauciflorum Bory ex Nees Panicum polyphyllum Peter Panicum polystachion Ucria Panicum repens var. The spread of torpedograss is limited to rhizomes either by rhizome expansion or fragmentation. It easily moves into disturbed and cultivated areas such as ditches and canals. Excerpted from University of Florida, IFAS Extension, Circular 1529, Invasive Species Management Plans for Florida, 2008 by Even if introduced into a small area, this weed can rapidly spread to become a major problem. 3 vols. Kuntze Panicum repens var. This can be very difficult because if even a tiny fragment of rhizome is left in an area, it will reestablish itself. [6] It displaces native plants,[8] growing colonially in thick, monotypic stands. Seeds are sometimes observed but they are apparently rarely viable, with many studies describing zero germination. Torpedograss produces … Panicum repens and P. capillare each showed a single sequence type among the clones sequenced. It is called torpedograss because of its sharply pointed or torpedo-like growing tips. 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. Der Bekämpfungserfolg war mit dem Wiederaustrieb aus den Rhizomen schwach korreliert. ed. Control of Torpedograss (Panicum repens) with Trifloxysulfuron-Sodium in Bermudagrass (Cynodon dactylon × Cynodon transvaalensis) Turf - Volume 20 Issue 2 - … 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. (26 cm) long, 0.3 in. (GPWG 2001) : Subfamily Panicoideae. Google Privacy Policy | It also invades drier habitat, such as coastal pine forests and white sand scrub. Now torpedograss weeds are among the most common and annoying pest plants here. The weed is also reported to suppress the germination and growth of other plants. Brown. Effect of burial depth on emergence of Panicum repens. Se usa para limitar el porcentaje de solicitudes. Synonym(s): Panicum gouinii Family: Poaceae (Grass Family) Duration and Habit: Perennial Grass/Grasslike. Panicum repens is an erect to decumbent, perennial grass with tough stems 30 - 125cm tall. Torpedograss is most difficult to control when partially submersed in water. Chandrasena JPNR, 1991. Panicum repens. Panicum miliaceum L., Sp. Control of torpedograss (Panicum repens) through submersed herbicide Most of the times field is irrigated for preparation and weeds are allowed to … A 2 to 3% solution of glyphosate (Roundup, etc.) It is also good for erosion control because it binds the soil. Panicum leiogonum Delile. Panicum repens L., Sp. [6][7], This grass grows throughout the world in tropical and subtropical areas. WSSA list of weeds in North America 10 minutos: __utmz: Google Analytics: Se usa para almacenar datos de variables personalizadas a nivel de visitante. 1999, Brecke et al. Native to Africa and/or Asia, it was introduced to the United States before 1876, primarily through seed used for forage crops. Hojas con vainas híspidas, con pelos de base tuberculada; lígula de 1-2 mm; limbo de hasta 30 x 0,3-2 cm, plano, estriado, más o menos laxamente peloso, con margen escábrido. 47(6): 651-656. Enhancement of fluazifop-P toxicity to torpedograss (Panicum repens L.) by surfactant and oil-additive. The largest infestations can be found in Lake Okeechobee where it displaces close to 7,000 acres of native marsh. It is a widespread weed of a range of crops. It grows in freshwater marshes, salt marshes, mud flats, wet prairies, tide pools, bogs, and lakesides. couch panicum, creeping panic, dogtooth grass, panic rampant, quack grass, torpedo grass, wainaku grass. Glyphosate has been the most effective herbicide used to control torpedograss. No known synonyms Conclusions by Zone. Flora Vascular de Andalucía Occidental: Anuales. It has been noted to grow 1.3 cm (0.51 in) in length per day. It grows on many barrier islands. They grow erect or bend down. This page uses Google Analytics The rhizome can disperse when parts of it break off and drop onto the substrate elsewhere, anchoring and putting up new shoots. Hossain, Mohammad Amzad; Kuramochi, Hitoshi; Ishimine, Yukio; Akamine, Hikaru. Panicum repens is a perennial grass that can reach up to 3 ft. (1 m) tall. Introduced into North, Central and South America, . Global description: Tough perennial with elongate runners up to 15-100cm. Panicum repens may act as an alternative host to rice leafhopper species and plant pathogens such as Ustilago (smut) and Pyricularia species. Introduction. Britton, N.L., and A. Control of infestations near waterways will prevent long-range spread via water and this should be a priority. Preventive control can be accomplished by preventing the spread and fragmentation of rhizomes. Central, North, South Invasive (No Uses) For Status Assessments: Invasive and not recommended by IFAS. 2001). Weed Technology: Vol. Leaf Torpedograss is one of the most serious weeds in Florida. Panicum repens L. Weed type: Grass. Panicum arenarium Brot.. Panicum chromatostigma Pilg.. Panicum convolutum P.Beauv. [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). Torpedograss is in the family Poaceae, including grasses such as cogongrass and bermudagrass. 1(2): 108-114. Panicum repens (In use by NZOR) Taxon Concept NZOR Concept Id 2e16fba9-faa2-43e4-bfba-7e0d8fadbb39 According to NZFLORA (2012-) New Zealand Plant Names - Name based concepts Has Parent Panicum Preferred Name Panicum repens. Melinis repens occurs in disturbed areas and is a pioneer species. Spreading aggressively from a rhizomatous rootstock, the plant can form extensive, dominant swards[ 266 https://www.fs.fed.us/database/feis/plants/graminoid/panrep/all.html 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. Foliage Leaves are linear, flat or folded, 10 in. 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. Small P. repens fragments can give rise to dense clonal stands through vegetative growth and rhizome fragments buried as deep as 50 cm can send up new shoots (Hossain et al. [5] In the Florida turfgrass industry, it is the second-worst weed known. 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. Torpedograss has a panicle-type inflorescence, 3-9 inches long. Panicum repens Couch panicum. 1913. Birds eat the seeds and use the plant for nesting material. Regardless of habitat conditions, multiple resprays may be required for complete control. Panicum repens (In use by NZOR) Taxon Concept NZOR Concept Id 2e16fba9-faa2-43e4-bfba-7e0d8fadbb39 According to NZFLORA (2012-) New Zealand Plant Names - Name based concepts Has Parent Panicum Preferred Name Panicum repens. Esta cookie se crea cuando un programador usa el método _setCustomVar con una variable personalizada a nivel de visitante. 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. The spreading rhizomes sprout repeatedly to form colonies of stems. The rhizomes are extensive and stems are rigid. Torpedograss. 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. A single oral dose of 500 mg/kg of P. repens extract were given to rats, after 24 h, urine volume, its sodium and potassium concentrations were estimated. Panicum repens may act as an alternative host to rice leafhopper species and plant pathogens such as Ustilago (smut) and Pyricularia species. Torpedograss (Panicum repens L.) control with lower rates of glyphosate. A synonym of torpedo grass is Panicum gouinii. Specified and limited uses may be considered by the IFAS Invasive Plants Working Group. 4, pp. Application timing of asulam for torpedograss (Panicum repens L.) control in sugarcane in Okinawa Island. Panicum repens* L. Sp. Torpedograss has not yet been listed on the Federal or State Noxious Weed List. 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. Pl. Common Names. No subordinate taxa. Introduction: 1920 (agriculture. An illustrated flora of the northern United States, Canada and the British Possessions. [3][5] In other areas, it can be found in turf and orchards. [6] Torpedograss management in flood-control systems costs an estimated US$2 million per year. 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. Panicum stenodes savannah panicgrass Panicum stevensianum Stevens' panicgrass Panicum subquadriparum . A single tillage operation may help to enhance herbicidal effectiveness, but disking alone may increase infestation levels through rhizome fragmentation. (26 cm) long, 0.3 in. arenarium (Brot.) Species Overview. Application - … The plant is grayish-green with thin hairs on the upper surface. [81223] 54. Especie: Panicum repens L. El taxón ha sido validado según el documento F01182. Panicum repens. Panicum repens and I. cylindrica were found in areas that have soils with a sandy-loam character. In addition, imazapyr has soil activity, so care must be exercised around sensitive species such as oaks (Quercus spp.). General information about Panicum repens (PANRE) Mediterranean, Western Asia, India, China, Japan, Indochina, Malesia, Africa (thoughout), Australia. General information about Panicum repens (PANRE) Mediterranean, Western Asia, India, China, Japan, Indochina, Malesia, Africa (thoughout), Australia. 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 Synonyms. (5.3 mm) wide with a whitish, waxy covering. Plants have long, creeping rhizomes with sharp-pointed (torpedo-like) tips. 1999. Foliage. 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. The leaves are stiff and straight, linear in shape, and flat or folded. Common Names. 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. Torpedograss is a non-native grass. (Panicum repens L.) John D. Byrd, Jr., Ph.D., Plant and Soil Sciences , Mississippi State University Victor Maddox, Ph.D., Geosystems Research Institute, Mississippi State University Problem Torpedograss (Panicum repens L.) is a nonnative riparian, wetland and terrestrial plant native to Eurasia and is consid-ered one of the World’s worst weeds. Continuous tillage will provide good control, but is often impractical in many natural areas. Weed Technology: Vol. Uses Livestock: It was once used for cattle in the 1920s and is resistant to grazing and trampling; however, better forages are now available that has higher Mechanical control is only moderately effective for torpedograss control. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. Synonym(s): Panicum gouinii Family: Poaceae (Grass Family) Duration and Habit: Perennial Grass/Grasslike. 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- Share. Torpedograss is a non-native grass. Panicum és un gran gènere de plantes de la família de les poàcies. Its exact native range is obscure. Management of Panicum repens involves the repeated application of herbicides. Share. Torpedograss produces spikelets that are stalked with white and yellow flowers. 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. Género: Panicum. The extract was administered p.o. Description P. repens is a perennial grass that frequently forms dense colonies and has long, creeping rhizomes. Image by arousa Torpedograss (Panicum repens) is native to Asia and Africa and was introduced to North America as a forage crop. It grows in many types of wetland habitat, in and out of the water. Nonnative to Florida FISC Category 1 Invasive. Torpedograss (Panicum repens) is a non-native, perennial grass species that is found throughout much of the southeastern United States. Torpedograss (Panicum repens) Control with Quinclorac in Bermudagrass (Cynodon dactylon × C. transvaalensis) Turf. Classification. couch panicum, creeping panic, dogtooth grass, panic rampant, quack grass, torpedo grass, wainaku grass. It grows in moist, often sandy soils and its rhizomes often extend several feet out into the water. 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. Torpedograss is a perennial grass that can reach up to 3 ft. (1 m) tall. [6] The stems are 20 to 90 cm (7.9 to 35.4 in) tall,[7] sometimes reaching 1 m (3 ft 3 in). 10 mLs or 2 teaspoons per gallon of spray solution ) arousa (. Repeatedly to form colonies of stems plants provides a Source of information for identification! A tiny fragment of rhizome or stolon fragments do not kill it types of wetland habitat, such as (! Along shorelines to stabilize them this grass grows throughout the world 's weeds! 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