Kaul V, Zutshi P & Vass KK 1976, ‘Aquatic weeds in Kashmir’, in Aquatic weeds in South East Asia: Proceedings of the Regional Seminar on Noxious Aquatic Vegetation, New Delhi, 1973, eds. The failure of chemical and mechanical means to … Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994. Trapa natans is a rooted, floating plant that invades shallow to deep, fresh water habitats in the northeastern United States. 2).It displaces native vegetation and limits navigation and recreation. Water chestnut (Trapa natans L.) (Fig. Maryland Code and Regulations Nonative Aquatic Organisms, Maryland Department of Natural Resources Policy: Restriction on Planting Exotic Invasive Plants, Michigan’s Prohibited and Restricted Species, Mid-Atlantic Field Guide to Aquatic Invasive Species, National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List, New Jersey Invasive Species Strike Team 2017 Invasive Species List, New York Regulated and Prohibited Invasive Species - Prohibited, Nonnative Invasive Species in Southern Forest and Grassland Ecosystems, Pacific Northwest Exotic Pest Plant Council, 1998, Pennsylvania Department of Conservation and Natural Resources Invasive Plants, Pennsylvania's Field Guide to Aquatic Invasive Species, Virginia Invasive Species Management Plan 2012, WeedUS - Database of Plants Invading Natural Areas in the United States, West Virginia Native Plant Society, Flora West Virginia Project, and West Virginia Curatorial Database System, September 3, 1999, Wisconsin's Invasive species rule – NR 40, Weed Science Society of America Common Names List, Center for Invasive Species and Ecosystem Health, USDA Animal and Plant Health Inspection Service, USDA National Institute of Food and Agriculture. It … EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. Flowering and seed production continue into the fall when frost kills the floating rosettes. Varshny and J Rzoska. It looks a lot like Trapa natans, the water chestnut that has blanketed waterways on Maryland’s Upper Shore and the Northeast United States, but it isn’t. Water-chestnut is an aquatic annual, native to Europe and Asia, where it is a component of many regional cuisines. The rosette of leaves on the surface of the water are alternate, triangular in shape, … If you think you have found an invasive … European Water Chestnut Scientific Name. Roots in substrate or is free-floating with slender, unbranched roots. 4: Agricultural: 0: Infrastructure: Water chestnut infestations limit boating, fishing, swimming and other recreational activities. Resources. ... , Du, Y., & Zheng, F. 2006. Pacific Northwest Exotic Pest Plant Council, 1998, West Virginia Native Plant Society, Flora West Virginia Project, and West Virginia Curatorial Database System, September 3, 1999, The University of Georgia - Center for Invasive Species and Ecosystem Health, National Association of Exotic Pest Plant Councils. Uncontrolled, it creates nearly impenetrable mats across wide areas of water (Winne 1950; Kiviat 1993). Water Chestnut - Trapa natans The water chestnut originates from Eurasia and was first brought to the United States in the 1800s. Invasive Species Compendium - Trapa natans. (2018), T. natans has been present in Connecticut since 1998, The newly discovered US Trapa is identified as T. bispinosa Roxb. Foliage Last updated Sept. 28, 2005. 2011. Biological Control of Invasive Plants in the Eastern United States, Plant Invaders of Mid-Atlantic Natural Areas, Colonial National Historical Park (Virginia). 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