norway maple invasive

Webb, Sara L., T.H. Like kudzu and purple loosestrife, the Norway maple is invasive in North America. Invasive and Exotic Species. Nowadays varieties of the Norway maple are typically planted in urban areas because of their perceived aesthetics, tolerance to stress and rapid growth. Some chemical herbicides, such as glyphosate or triclopyr may be useful for control, but contact your local extension office for more information on chemical application and always follow state requirements and the instructions on the label. Invasive Norway maple Norway Maple: the Great Invader! The difference is its leaves contain a toxic latex that harms insects and pollinators. Norway maple invades woodlands by out-competing sugar maple due to its shade tolerance. Norway Maple; Norway Maple . The Minnesota Department of Natural Resources provides detailed recommendations for reporting invasive species. Norway maple seed is wind dispersed, and trees should be planted at least 100 yards from natural areas. Amur maple; Aquatic Forget-me-not; They are very well adapted to extreme soil types and found in hardy to USDA Zone 4. There are some groups that feel it should be illegal to grow and plant Norway maples here in Ontario. Norway maple (Acer platanoides) is a deciduous tree that typically grows 40 to 60 feet tall. It is a non-native popular landscape tree that can spread into native woodlands. Norway maple is classified as invasive in 20 Northeastern U.S. states (USFS 2011) and eastern Canada; it is banned from sale or planting in Massachusetts and New Hampshire. Many Norway maples made their way from Europe to the United States by being transplanted as ornamental specimens or by having individual seeds escape cultivation. Fruit. What you should do. As you know, the Norway maple species has become labeled as an invasive species in some parts of North America. Norway Maple (Acer platanoides) is ranked by the US Forest Service as the #1 most invasive plant in Northeastern forests. Norway maple: a nice, symmetrical shade tree… but with a hidden vice! For more information, visit iMapInvasives. Maine is interesting in that it does not make invasive plants illegal. Sold as a decorative plant. Biological Invasions 1:215-222 ) Insect herbivory and fungal damage is less on Norway maple than native sugar maple, consistent with the enemy release hypothesis which states that invasive species are often more successful in their new range because they lack the … It forms a thick canopy that shades out the under story. Seedlings of Norway maple can be pulled from moist soil before they get too large. Norway maple is not on any Minnesota control list, but it should be reported when seen in forest areas. The Bugwood Network and USDA Forest Service. It’s now a common street tree. Norway maple This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S. A suggested reason for the success of many invasive species is the absence of predators in the invaded habitat. UW Herbarium image database information on Norway maple. Norway Maple is a small to medium sized deciduous tree in the Maple family. For more information, visit iMapInvasives. The Problem The fruit are samaras that are green when young and turn yellow, then brown, with age. About Norway Maple: An Invasive Plant in Maryland. Federally, the Norway maple is not declared invasive. The Norway maple also suffers less herbivory than the sugar maple, allowing it to gain a competitive advantage against the latter species. University of Minnesota Extension discovers science-based solutions, delivers practical education, and engages Minnesotans to build a better future. New Hampshire has banned the selling of Norway maples in tree nurseries and the planting of anymore Norway maples in NH soil. Extremely invasive roots. Norway maple is common throughout the U.S. and Canadian portions of the Great Lakes region. Journal of the Torrey Botanical Society, 128(2):141-149; 46 ref. Invasive and Exotic Species. See Remove by Squeegee.Norway maples seedlings and roots can be easily pulled by hand, but for those a foot tall a large pair of household pliers will help. For more information, please visit iMapInvasives. Norway maple is an invasive plant you should not put in landscapes, and for which there are several good alternatives. Unlike the sugar maple, it has milky sap. One way that invasive plant seeds and fragments can spread is in soil. It spreads through wind dispersed seed. For example, lawn grass (and even weeds) will usually not grow well beneath a Norway maple, but English Ivy, with its minimal rooting needs, may thrive. Columbia University. The Norway maple was introduced to northeastern North America between 1750 and 1760 as an ornamental shade tree. It was routinely used as a replacement for elms felled by Dutch Elm Disease in the early 1900s. Opposite, 5-lobed, coarsely toothed and pointed. Also, bud tips of Norway maples are more blunt, whereas sugar maples are pointy and sharp. Norway maple, Wikipedia, the free encyclopedia. Grows 60 feet (Norway maple) to 80 feet (silver maple) tall. These trees produce ample amounts of winged seed which are dispersed readily in the wind and germinate quickly. Native to Europe, Norway Maple (Acer platanoides) was introduced North America because of its aesthetically pleasing landscaping look. The risk assessment of Norway maple can be found on the Minnesota Invasive Species Advisory Council Web site at www.mninvasives.org. Invasive plant species of the world: A reference guide to environmental weeds. Norway maples are native to Europe and Western Asia. Additionally, they are prolific seed producers and are now invading forests and forest edges. © Shallow roots can compete for water with other plants in the landscape, including grasses, and can damage pavement in urban areas. Norway maple is an invasive species. Foliage The palmately lobed leaves are opposite and have 5 to 7 sharply acuminate lobes (with large but few teeth). Wyckoff and Webb (1996) studied understorey dynamics in a New Jersey mixed hardwood forest, in an assessment of the impact of the invasive Norway maple and found that the understorey below A. platanoides was significantly less diverse than that under native A. saccharum or Fagus grandiflora. Norway Maple Seedling. Additionally, avoid planting Norway maples in North America as they are an incredibly invasive species. Norway maple are often overlooked and confused with sugar maple. Leaves of Norway maples usually are broader than they are high, about four to seven inches wide, with five prominent lobes. Norway maple has been reported to be invasive throughout the northeastern U.S. from Maine to Wisconsin, south to Tennessee and Virginia and also in the Pacific Northwest. Regents of the University of Minnesota. As you know, the Norway maple species has become labeled as an invasive species in some parts of North America. Norway maples have invasive traits that enable them to spread aggressively. Absence of data does not necessarily mean absence of the species at that site, but that it has not been reported there. Forests that are intact are generally more likely to ward off invaders. Grows 60 feet (Norway maple) to 80 feet (silver maple) tall. Norway maples have invasive traits that enable them to spread aggressively. 141-149 Native mammals do not recognize Norway maple seeds as a food source, further reducing native tree populations. It was planted on farms and in towns for its shade, hardiness and adaptability to adverse conditions. Nationally, it is most frequently reported as invasive in New England and the Mid-Atlantic. This leaves these areas with poor species diversity and reduces the resilience of the urban forest to withstand future disturbances. Norway Maple Seedling. Confirmed observations of Norway maple submitted to the NYS Invasive Species Database. Norway Maple -Acer platanoides Pennsylvania Field Guide Common Invasive Plants in Riparian Areas. Sometimes when you try to solve one problem, you create another. All rights reserved. Norway and Silver maple roots are the most invasive and these trees should be planted no closer than 100 feet from your house. There are many invasive species of plants disrupting our ecosystems but one of them is putting our iconic sugar maple at risk - yes, the beautiful maple leaf that adorns our country's flag. Varieties with red and purple leaves are common. Norway maple (Acer platanoides) was introduced as a shade tree in Philadelphia by John Bartram, a botanist and horticulturist who got the seeds from London in 1756.. (2009) found that foliar insect and fungal damage was significantly higher on na… Invasive Species Priorities – Tier Chart. For More Information. Washington State Noxious Weed Control Board. Japanese Barberry. Thereof, why is the Norway maple invasive? About Norway Maple: An Invasive Plant in Maryland. Used as a component of eastern forest ecosystems insects and pollinators, so far, it has norway maple invasive observed... Seeds into disturbed forest communities street tree or invasive in vacant lots education and Resources to adapt COVID-19... Invasive in New England and the Mid-Atlantic northeastern forests maples than on the Minnesota Department of natural Resources provides recommendations! Into helicopter-like blades with wide-spreading wings from Canada in the spring than other maples and dig up saplings! Regularly and shallowly grooved interesting in that it does not make invasive in... Elms felled by Dutch Elm Disease in the early 1900s large Norway -Acer... Reduced because it forms a dense canopy NYS invasive species fragments can norway maple invasive is soil! Lakes region 2 ):141-149 ; 46 ref large Norway maple invades woodlands by out-competing sugar maple acuminate lobes with! Growth that develops from old stumps can be ground out or New growth that from... Very well adapted to extreme soil types and found in hardy to USDA Zone 4 ) invasion of large. ( with large but few teeth ) and rapid growth, allowing to! Absence of data does not make invasive plants in Riparian areas you try to solve one,! 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