![]() dissertation.Norway maple trees ( Acer platinoides) are wonderful shade trees in the garden. Assessing the potential of invasiveness in woody plants introduced in North America. Non-Native Invasive Plants of the City of Alexandria, Virginia Non-Native Invasive Plants of Arlington County, Virginia New Hampshire Department of Agriculture, Markets and Food Plant Industry Division and New Hampshire Invasive Species Committee. Guide to Invasive Upland Plant Species in New Hampshire. New Hampshire Invasive Species Committee. Home and Garden Information Center, Home and Garden Mimeo HG88. John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007 Natural Resources, Bureau of Endangered Resources. Wisconsin manual of control recommendations for ecologically invasive plants. Rock Creek National Park (Washington, D.C.)Ĭity of Ann Arbor Michigan Parks and RecreationĬommonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994. Monocacy National Battlefield Park (Maryland) Harpers Ferry National Historical Park (West Virginia) Gettysburg National Military Park (Pennsylvania) National Parks where reported invasive:Ĭhesapeake and Ohio Canal National Historical Park (Maryland, Washington, D.C., and West Virginia)Ĭolonial National Historical Park (Virginia)Įisenhower National Historic Site (Pennsylvania) This map identifies those states that list this species on their invasive species list or law. Reports made by experts and records obtained from USDA Plants Database. This map is incomplete and is based only on current site and county level "Tree and Shrub Names in Latin, Croatian, English, and German, with synonyms", University of Zagreb, 2001. Photos and explanations from the book: Zelimir Borzan. Leaf-scars are opposite, horseshoe- or heart-shaped and connected extreme laterally. Winter-branchlet buds are reddish-brown, glossy, terminal bud is larger. Seedling with cotyledons (c) and first pair of ordinary leaves. Wings of the samaras spread perpendicular to the pedicels (»horizontally spreading«), with conspicuously flat nutlets. Branchlet with mature leaves and ripe fruits (double samaras). Branchlet with corymb, terminating developing young shoots (a - e) with deciduous (typically green) transitional leaves at their base (k). Jan Samanek, Phytosanitary Administration, īill Cook, Michigan State University, ![]() Plant Invaders of Mid-Atlantic Natural Areas - National Park Service and U.S.Identification, Biology, Control and Management Resources Thus, it can reduce native species diversity and change the structure of forest habitats. Ecological Threat Acer platanoides is able to shade out native understory vegetation such as spring ephemerals, and eventually out-competes native tree species in the forest canopy. The samara wings are divergent, reaching nearly 180 degree angle to each other and are dispersed by wind. The fruit are samaras that are green when young and turn yellow, then brown, with age. Fruit The pendulous fruit measure 1.5-2 in. They are borne in erect, pedunculate, rounded corymbs. Flowers The flowers appear in April and May and are yellow-green in color. The fall color of the green leaves is yellow. The leaves are usually green in color, but there are some cultivars that have dark red leaves. ![]() The leaf petioles exude a white sap when broken. Foliage The palmately lobed leaves are opposite and have 5 to 7 sharply acuminate lobes (with large but few teeth). The bark of the tree is grayish and regularly and shallowly grooved. (12-18 m) in height, but can reach heights of 100 ft. Iran ( BAIL) Īppearance Acer platanoides is a tree that usually grows to 40-60 ft. Native Range: Europe, Caucasus ( REHD) Europe, Caucasus, n. Taxonomic Rank: Magnoliopsida: Sapindales: Sapindaceae Jump to: Resources | Images | Distribution Maps | Sources ![]()
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