Leslie J. Mehrhoff, University of Connecticut, Bugwood.org. The leaves are dark green with wavy, serrated margins. Status and Strategy for Curly-leafed Pondweed Management This document provides in-depth information about Curly-leafed Pondweed in the State of Michigan including identification, distribution, management, and control options. The leaves become denser at the bottom of the stem. Dense colonies can hinder fish movement as well as recreational activity. Michigan State University. Leaves are sessile, oblong, stiff, 1.6-3.9 in. AgriLife Extension Service. (5-10 mm) wide, translucent and have noticeably curly margins (resemble lasagna noodles). Native Range: Europe, Asia, Africa, Australia. Whatcom County Noxious Weed Control Board (Washington). mass.gov/eea/docs/dcr/watersupply/lakepond/factsheet/curly-leaved-pondweed.pdf (PDF). (4-10 cm) long, 0.2-0.4 in. Brackish, alkaline, or eutrophic conditions less than 3 meters in depth are preferable, although it can grow in waters up to 12 meters deep. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar. Curly-leaf pondweed is a non-native, invasive submersed aquatic plant that was first observed in Minnesota in about 1910. 2013. Curlyleaf pondweed is a non-native, invasive aquatic plant that can grow in very dense stands, displacing native species. National Genetic Resources Program. Habitat: Curly-leaf pondweed is tolerant of low light and low water temperatures and invades shallow as well as deep water. Department of Wildlife and Fisheries Sciences. native submersed plants. Aquatic Invasive Species Curly-leaf pondweed (Potamogeton crispus) _____ What is curly-leaf pondweed? Aquatic Invasive Species Quick Guide . Areas at the highest risk in a lake is the littoral area ( 0 - 15 feet ). Google. It starts growing in fall and winter, flowers in … Reproduction Leaves are alternate, 4-10 cm in length and 5-10 mm wide. One of its advantages is that it produces hardy turions – buds that can remain viable for long periods before sprouting to form new plants. Mississippi State University. Clearwater lake has identified three Aquatic Invasive species; Eurasian Milfoil, Curly Pond Leaf and Rusty Crayfish. Special Note: Formerly known as the Maine Volunteer Lake Monitoring Program. University of Florida Center for Aquatic and Invasive Plants. Smithsonian Institution. The plant grows up to five metres long, and forms dense mats of vegetation. (link is … Midwest Invasive Species Information Network (MISIN) Educational Module and Assessment. Invasive is slightly smaller than the native pondweed, a locally-occurring species. Another name is the Curled Pondweed. Identification: Potamogeton crispus grows entirely as a submersed aquatic plant with no floating leaves. Additionally, please check your boats and props to prevent the spread! Curly-leaf Pondweed (Potamogeton crispus) is a prohibited invasive species in Minnesota, which means it is unlawful (a misdemeanor) to possess, import, purchase, transport or introduce this species except under a permit for disposal, control, research or education. University of Wisconsin. Please keep your eyes open and let us know if you see this aquatic invasive plant along your shorelines or docks. ARS. The leaves are smaller and the curl is tighter on the invasive than it is on the nativel. This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. Forms dense mats that inhibit growth of native species and impede recreational activities (Catling and Dobson 1985) Curly Pondweed | National Invasive Species Information Center It is native to Eurasia, Africa and Australia. Curly leaf pondweed has been found in the Manitowish Waters Chain. The leaves are green, reddish, or brown, and the plant has yellow or red rhizomes. It can become dominant and invasive due to its tolerance for low light and low water temperatures. Distribution in Minnesota Curly-leaf pondweed is known to be present in 3 - Curly-leaf Pondweed Monitoring Protocol May 2014 47 Curly-leaf Pondweed Curly-leaf pondweed is a non-native submerged aquatic plant. Its unique ability to thrive in cool water allows it to out-compete other aquatic plants. The .gov means it’s official.Federal government websites always use a .gov or .mil domain. Native to Eurasia, African and Australia. With a high germination rate of 60-80%, turions play a large role in the invasive nature of curly leaf pondweed. Pennsylvania State University. Citizen Lake Monitoring Network. Ecological life histories of the three aquatic nuisance plants. Use the Midwest Invasive Species Information Network, http://www.misin.msu.edu/tools/apps/#home, MDARD Weed Risk Assessment for Curly-leaf Pondweed, Leaves are dark green with wavy, serrated margins, Submersed, perennial herb with thick roots, Flowering spike grows above water’s surface, Starts growing in fall and winter, flowers in late spring, dies in late July. (4-10 cm) long, 0.2-0.4 in. Smithsonian Environmental Research Center. RESTRICTED IN MICHIGAN, Use the Midwest Invasive Species Information Network (MISIN) online reporting tool, - Or - download the MISIN smartphone app and report from your phone - http://www.misin.msu.edu/tools/apps/#home, Leslie J Mehrhoff University of Connecticut Bugwood.org, Chris Evans Illinois Wildlife Action Plan Bugwood.org. Midwest Invasive Species Information Network. See also: Aquatic Invasive Species Monitoring Training Manual. Curly-leaf pondweed is typically found in lakes and ponds, but can be found in irrigation canals and drainage ditches. Note the size of plant as compared to the hands. University of Georgia. Confirmed observations of Curly-leaf pondweed submitted to the NYS Invasive Species Database. Aquatic Invasive Species are know as AIS. The serrated leaves are a unique distinguishing feature of this species. Center for Invasive Species and Ecosystem Health. Unknown, possibly introduced accidentally with fish stocking operations (, Forms dense mats that inhibit growth of native species and impede recreational activities (. Flowers Flowering occurs in the summer to early fall, when emergent flowers develop. Alberta Invasive Species Council (Canada). Cooperative Extension. Or, to display all related content view all resources for Curly Pondweed. Life cycle L.) Description: Curly-leaf pondweed is a non-native, perennial aquatic plant in the Potamogetonaceae family, can grow in very shallow water or down to at least 15 feet deep. YouTube; Montana Weed Control Association. USDA. CLP has a reddish tint on the leaves and the stems. At the present time two invasive species have been found in Fence Lake ... Curly Leaf Pondweed. Provides detailed collection information as well as animated map. Rhode Island Department of Environmental Management. SUBMIT ALL. Rigid, reddish-green, oblong leaves have … Habitat: Curly-leaf pondweed inhabits ponds, lakes, and slow moving streams. Our team works to prevent the introduction and spread of new aquatic invasive species, such as zebra mussels, quagga mussels, curly-leaf pondweed, Eurasian Watermilfoil, and flowering rush, within the Lake Pend Oreille system by raising community awareness and … Contact information For information on Lakes in Wisconsin, contact: Wisconsin DNR Lakes Division of Water Bureau of Water Quality Aquatic Invasive Species Contacts. Curly-leaf Pondweed (Potamogeton crispus. Wisconsin Department of Natural Resources. Geosystems Research Institute. Provides distribution maps and collection information (State and County). Office of Water Resources. Pennsylvania Department of Conservation and Natural Resources. University of Minnesota. Curly-leaf pondweed can grow under the ice while most plants are dormant, but then dies back in mid-July when other It was likely introduced when common carp were intentionally introduced into Midwest waters as a game fish in the 1880s Source.The plant can spread between waters via plant material such as plant fragments or fruit that are transported with boats, trailers, waterfowl hunters or other aquatic equipment. Flowers: Curled Pondweed has small and reddish-brown flowers, with 4 petal-like lobes, and arranged in a dense spike on a curved 2.5 – 5 cm stalk.Flower spikes often emerge above the water surface. Citizen Lake Monitoring Network. Curly-leaf pondweed is a submerged perennial that resembles many native pondweeds. Massachusetts Department of Conservation and Recreation, Office of Water Resources, Lakes and Ponds Program. Potamogeton crispus L. Curly pondweed. (Potamogeton crispus)
Take a closer look at the only invasive pondweed we have in the United States. The section below contains highly relevant resources for this species, organized by source. While growing in Hayden Lake for years, it recently made its presence known in the North Arm in a big way. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely. National Invasive Species Information Center, Catling and Dobson 1985; Nichols and Shaw 1986, Early Detection & Distribution Mapping System (EDDMapS) - Curly-leaved Pondweed, Nonindigenous Aquatic Species Database: Point Map - Curly-Leaf Pondweed, Fact Sheet: Curly Leaf Pondweed (Apr 2016) (PDF | 788 KB), Invasive Plants of Ohio: Fact Sheet 18 - Lesser Naiad and Curly Pondweed (PDF | 316 KB), Invasive Plant Atlas of the United States - Curly-leaved Pondweed, Pacific Island Ecosystems at Risk (PIER) -, Plantwise Technical Factsheet - Curlyleaf Pondweed (, Species Information Sheets - Curly Pondweed, National Exotic Marine and Estuarine Species Information System (NEMESIS): Chesapeake Bay Introduced Species Database -, Nonindigenous Aquatic Species Database: Fact Sheet - Curly-leaf Pondweed, Freshwater Aquatic Invasive Species in Rhode Island: Curlyleaf Pondweed (Nov 2017) (PDF | 1.95 MB), Curlyleaf Pondweed: New Management Ideas for an Old Problem (PDF | 178 KB), Invasive Plants in Pennsylvania: Curly Pondweed (PDF | 191 KB), Whatcom Weeds: Curly-Leaf Pondweed (PDF | 361 KB), Aquatic Invasive Species Monitoring Training Manual: Curly-leaf Pondweed Monitoring Protocol (May 2014) (PDF | 2.82 MB), Aquatic Invasive Species Monitoring Training Manual, Invasive Species Fact Sheet - Curlyleaf Pondweed (Sep 2007) (PDF | 1.09 MB), Aquatic Plants and Algae: Curly-Leaf Pondweed, Maine's Interactive Field Guide to Aquatic Invaders and Their Native Look Alikes - Curly-Leaf Pondweed. Minnesota Department of Natural Resources. It was first observed in Idaho in the late 1970s. Pennsylvania Sea Grant. Extension Lakes Program. Local Concern: As with many invasive species, curly-leaf pondweed out-competes native aquatic plant species and reduces diversity. Curly leaf Pondweed This map is intended to provide general information of identified aquatic invasive species infestations in Becker County, Minnesota Data Source: MN DNR Infested Waters as of 12/7/18 Curly-leaf pondweed. This invasive plant can be found in water 3-10 feet deep, and grows best in cold temperatures. GRIN-Global. *Detected in Michigan*
For more information, visit iMapInvasives. Invasive Aquatic Species. Studies have shown that lakes with curly leaf pondweed beds may contain up to 1600 turions in one sqaure yard. Species Profile: Curly Pondweed. Appearance Potamogeton crispus is a perennial, submerged, aquatic herb that is native to Eurasia. www.itis.gov. Extension Lakes Program. Curly pondweed has wavy, toothed, alternate leaves. Chris Evans, Illinois Wildlife Action Plan, Bugwood.org. Exotic Species Program. Invasive Species - (Potamogeton crispus) Restricted in Michigan Curly-leaf pondweed is submersed, perennial herb with thick roots and a flowering spike that grows above the water's surface. Minnesota Aquatic Invasive Species Research Center. Marine Invasions Research Lab. MDARD Weed Risk Assessment for Curly-leaf Pondweed (Potamogeton crispus) - This document evaluates the invasive potential of the plant species using information based on establishment, spread and potential to cause harm. Curly-leaf Pondweed Invasive Species Alert - Printable PDF. Foliage Leaves are sessile, oblong, stiff, 1.6-3.9 in. Curly-leaf pondweed is a non-native, invasive submersed aquatic plant that was first observed in Minnesota in about 1910. It can thrive in polluted and eutrophic waters, and is tolerant of a wide range of water chemistry conditions. The Curly-Leaf Pondweed is an invasive species of aquatic plant. Curly-leaf pondweed was first discovered in North America in the mid 1880s. Curly-leaf pondweed frequency of occurrence, biomass, and turion production all declined by 90% or more in treated lakes Analyzed pre-existing data on curlyleaf pondweed from sixty Minnesota lakes to understand environmental factors affecting curlyleaf pondweed abundance and management outcomes We were tested in 2016 for Zebra muscles and came back clean. Curly-leaf pondweed is native to Eurasia, Africa, and Australia. Its leaves are alternate with serrated margins, a blunt tip, and 3-5 Invasive Species, 2270 Old Penitentiary Road, Boise, ID, 83712, United States Curly-leaved Pondweed: An Invasive Aquatic Plant (Potamogeton crispus). Texas A&M University. Taxonomy: available through. Curly-leaf pondweed is an invasive weed and a growing problem in Hayden Lake. An invasive species infesting Lac Courte Oreilles. It grows into dense mats that make boating and swimming difficult. Aquatic Invasive Species Monitoring Training Manual: Curly-leaf Pondweed Monitoring Protocol (May 2014) (PDF | 2.82 MB)(link is external) University of Wisconsin. PREV NEXT SUBMIT FINISH. Aquatic Invasive Species. General: Herbaceous, partially, or entirely submersed aquatic species; some leaves may float on the surface.. Pennsylvania State University. U.S. Distribution: Unfortunately, curly-leaf pondweed has established itself in all of the continental U.S. except for Maine and South Carolina. Common name: curly-leaf pondweed. Native range and Distribution (5-10 mm) wide, translucent and have noticeably curly margins (resemble lasagna noodles). Synonyms and Other Names: [Curly, curly-leaved, crispy-leaved, crisped] pondweed. They can also cause mid-summer algal blooms. See also: Invasive Plant Fact Sheets for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands. See also: Aquatic Invasive Plants for species of concern. Curlyleaf pondweed can grow in depths up to 15 feet. Common names: curled pondweed, crisped pondweed; Ecological threat: It invades freshwater lakes, ponds, rivers, streams, and in slightly brackish waters. Care must be taken to correctly identify this species.