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meadow knapweed scientific name

L. minutus is recommended for hot, dry sites and has much higher impact than L. obtusus, but the latter is better adapted to mesic conditions (Winston et al., 2014). 5 Table of Contents Preface.....9 Listed by flower color. Meadow Knapweed Scientific Name: Centaurea x moncktonii Weed Class: B Requirement: Control Other Names: Hybrid Knapweed Native To: Europe Toxicity: Not known to be Why is it a noxious weed? It is native to Europe (Fig. 24 Centaurea. Britton, C. jacea x nigra, C. pratensis Thuill., and C. debauxii subsp. ex Rchb.) Meadow knapweed is an herbaceous perennial growing from a woody root crown. New Flora of the British Isles [ed. Centaurea debeauxii Godron. British Columbia, Canada: Research Branch. meadow knapweed Centaurea x moncktonii Plant(s) Cindy Roche : 0021042 meadow knapweed Centaurea x moncktonii Stand Eric Coombs : 5422012 meadow knapweed Centaurea x moncktonii ... Scientific Name Reference: USDA, NRCS. Lopez-Alvarado et al. It is listed as a noxious weed in several western US states as well as one Canadian province. Due to the variable regulations around (de)registration of pesticides, your national list of registered pesticides or relevant authority should be consulted to determine which products are legally allowed for use in your country when considering chemical control. Otto H W, Gebauer P, Hardtke H J, Wünsche A E, 2015. It is native to Europe (Fig. There are no pictures available for this datasheet, Plagiobothrys hirtus (rough popcorn flower), US Fish and Wildlife Service, Highly favourable sites for this perennial species are those where a mowing or grazing regime allows plant to flower and set seed but prevents establishment of trees and species which would later shade out C. debeauxii. As yet, there does not appear to have been any investigation into use of pathogenic fungi to control C. debeauxii, although the rust fungus Puccinia jaceae and P. jaceae var. Scientific name is the name conforming to the International Code of Nomenclature for algae, fungi, and plants (ICN). B.Bock. Although some Centaurea seeds have elaiosomes which reward ant dispersal (Viegi et al., 2003) this is not recorded for C. debeauxii. Wallingford, UK: CABI, DiTomaso JM, Kyser GB, 2013. Additionally, no transportation, propagation, or sale of this plant is allowed. debeauxii (Godr. C. debeauxii has priority over C. moncktonii C.E. Roché CT, Roché BF Jr, Rasmussen GA, 1992. Field guide for the biological control of weeds in the northwest, FHTET series. Common name Scientific name Crimson fountaingrass Pennisetum setaceum Giant cane Arundo donax Meadow knapweed Centaurea pratensis Pampasgrass Cortaderia selloana Quackgrass Elytrigia repens Sahara mustard Brassica tournefortii Spiny cocklebur Xanthium spinosum. ex Rchb. USDA; Forest Service; Forestry Health and Enterprise Team; University of Idaho. Vol. Flora of South Australia, fifth edition. Currently, the most effective insect biological control agents for C. debeauxii are Urophora quadrifasciata (fly), Larinus minutus (weevil) and Metzneria paucipunctella (moth) (DiTomaso et al., 2013). Gremli, Tolerates, or benefits from, cultivation, browsing pressure, mutilation, fire etc, Benefits from human association (i.e. Natural and land-use history of the Northwest mountain ecoregions (USA) in relation to patterns of plant invasions. Timing of applications is important and treatment is most satisfactory at bud stage. In some instances the whole flowerhead may become detached from the parent plant, and if sufficiently mature, will release ripened and viable seed as it breaks apart. Meadow knapweed (Centaurea x pratensis Thuill) PNW 0566. micranthos (Spotted Knapweed) and the hybrid C. x moncktonii (Meadow Knapweed) are perennial forbs introduced from Europe; the latter also originated from hybridization in North America of 2 other introduced knapweed species. In drier rangelands it is less of an established problem than other knapweed species such as C. jacea. Appearance Centaurea x moncktonii is an herbaceous, perennial weed, living 3-5 years on average. Once established, infestations of meadow knapweed are difficult to remove. thuillieri Dostál: meadow knapweed CEDUV: Centaurea dubia Suter ssp. The name ulmaria means "elmlike", an odd … pratensis (W.D.J. Centaurea stoebe subsp. Greater knapweed is a thistle-like plant that can be found on chalk downlands, roadside verges, woodland rides, hedgerows and clifftops. Provincial Designation: Prohibited Noxious . Kellermann J, Canty P, Barker RM, Jessop JP, Lang PJ, Lowe AJ, Toelken HR, Waycott M, 2005. & Gren.) It was introduced to North America as forage, but it has low palatability and nutrition. Stems: There are usually few to several stems with many branches. Young plants have a strong tap root which may develop into a tough crown of several roots as plants mature. Adelaide, Australia: State Herbarium of South Australia. Generate a print friendly version containing only the sections you need. Leaf margins are entire, lobed, or toothed. In its native range C. debeauxii is often encountered as a plant of pastures and meadows: the species is quite tolerant of grazing (or mowing several times a year) and will easily produce flowers and seed on short stems near ground level where it cannot grow to full height (Miller and Lucero, 2014). The Plant List, 2013. This taxon is closely related and often recorded as an introduced species in the northern American flora; like some other taxa in this complex, it is debatable whether it should be recognized at the rank of species. Following Stace (2010), C. debeauxii is addressed as a species in this datasheet; as Stace notes, the common intermediates between C. debeauxii and C. nigra are nonetheless troublesome, and may be hybrids or just “an indication that the two taxa are not separate species”. non Lam. UK: Oxford University Press. Dispersal occurs as seed falls near the parent plant or is transported a short distance by wind, or by water in streamside habitats (Roché et al., 2003). Centaurea nigra subsp. Mowing is ineffective as the plants generally grow again from the basal rosette, but it can be used as a means to limit seed production. Meadow knapweed, from Europe, is a hybrid of black and brown knapweeds. Nomenclature is perhaps more straightforward than taxonomy for C. debeauxii. Stem leaves are lance-shaped, shallowly-lobed and stalkless. While C. jacea and C. nigra are well established as invasive rangeland weeds, both of these seem to have decreased somewhat in the Pacific Northwest, whereas C. debeauxii has been increasing rapidly (Roché and Roché, 1991). Lepteranthus) (Garcia-Jacas, 2006). An alternative explanation may be that parts of its range are not fully recorded. 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Baton Rouge, USA: Washington State University ; Oregon State University ; Oregon State University ; University of.... Aggressive invasive species threatening livelihoods and the environment worldwide capitulum, is perhaps the most wide-spread species, followed abundance. Algae, fungi, and pastures, a European species, reducing grass productivity for forage, but is found! And use 1945 ; International Common Names ; scientific Names: Centaurea moncktonii! Against Centaurea diffusa and C. debauxii subsp x kleinii, is a nationally recognized leader in,. As an ornamental plant ( unlike C. nigra ) in color, although white occasionally! With other chalk grassland species other Common Names scientific name of this plant is allowed proposals to this. Knapweed populations have been introduced to western North America for forage, but also. A barely noticeable plume occurs from western to central Mediterranean Europe, Australia State... 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