Copyright: various copyright holders. Flat-stemmed pondweed (Potamogeton zosteriformis) (Photo credit: University of Wisconsin – Green Bay) Emergent plants growing near curlyleaf pondweed stands are arrowhead (Sagittaria latifolia) and cattail (Typha latifolia) as well as small free-floating duckweeds (Lemna minor, L. triscula) and watermeal (Wolffia columbiana; Nichols and Yandell 1995). Glands at the leaf nodes are rarely present. image, please click it to see who you will need to contact. County documented: documented Narrow-leaf Pondweeds (Potamogeton zosteriformes, Potamogeton foliosus, Potamogeton pectinatus) Common names: Flat-stemmed, leafy, and sago pondweeds. → Flat-stem pondweed is broadly distributed across northern North America. flat-stem pondweed, small pondweed, water milfoil, white water crowfoot, yellow pond lily : RARITY STATUS : Provincial Status According to Harms (2003): Endangered. donations to help keep this site free and up to date for No floating leaves are produced. Bristly Greenbrier Jun-E FF Smilax illinoensis Mangaly (1968) Carrion Flower Jun-E FF SPARGANIACEAE BUR-WEED FAMILY Sparganium eurycarpum Engelm. Figure 2: Valisneria americana (water celery) Present at 100/231 sites with vegetation SUMMARY STATS: July 27-28, 2020 Total number of sites visited 493 Total number of sites with vegetation 231 Total number of sites … Saskatchewan Species at Risk Status: None. Habitat: Lakes, ponds and streams. In 2009 the four most abundant plants were coontail, flat-stem pondweed, and common waterweed. An aquatic vegetation community where Ogden’s Pondweed exists or has existed at any time in the past that is in an area of a stream, river or other body of water that is less than five metres deep. As the name suggests, flat-stem pondweed is distinctive because of its conspicuously flattened, winged stems. Flat-stem Pondweed Potamogeton zosteriformis POTZOS Lonicera involucrata LOIN5 twinberry honeysuckle Floating Primrose-willow Ludwigia peploides LUDPEP Lotus corniculatus lOCO6 bird's-foot trefoil Floating-leaved Pondweed Potamogeton natans POTNAT Ludwigia hexapetala LUDHEX Water Primrose Flowering-rush Butomus umbellatus BUTUMB Ludwigia palustris LUDPAL Water Purslane … Photos by K. Chayka taken in Aikin County. post Found this plant? Achenes are irregularly oval to nearly round, 4 to 5 mm long, with a narrow, slightly bumpy keel along the back edge and a short erect beak. in 20 years). To distinguish from Fennel-leaved Pondweed fruits are necessary. 26×28. How can we identify flat-stem pondweed? For info on subjects other than plant identification (gardening, invasive species control, edible plants, etc. It closely resembles 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% <3 3-5 6-8 9-11 >11 Depth Class Plant Frequency vs. Water Depth . The multiple long stems often form masses at the water surface. Comment (max 1000 characters): Note: Comments or information about plants outside of Minnesota and neighboring states may not be posted because I’d like to keep the focus of this web site centered on Minnesota. Flatstem Pondweed grows completely submerged in the water. unintentionally); has become naturalized. Funding provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources. Description Non rhizomatous plant with flattened stems and winter buds terminating short lateral branches. We depend on Any part of a river, stream or other body of water within an area described in paragraph 1, up to the high water mark. : Diphasiastrum complanatum, Diphasium complanatum] [groundcedar] Gemeiner Flachbärlapp {m} bot. Sand is the most common shallow water substrate around the lake. The dense cover it forms reduce… 1: 81. Note: All comments are moderated before posting to keep the riff-raff out. The hybrid shows leaf blades with 
7–21 veins and rarely produces fruit. Flat-stem Pondweed (Potamogeton zosteriformis) slender submersed leaves, 4-7 inches long. Curly leaf: oblong, stiff, translucent leaves (4-10 cm long, 5-10 mm wide) have distinctly wavy edges with fine teeth and 3 main veins. to exist in the county by The leaves are ribbon-like. Hultén Native Plant Trust or respective copyright holders. This species is thought to have originated as a stable cross between Hill's pondweed (Potamogeton hillii) and flat-stem pondweed (Potamogeton zosteriformis). 4 | LAKE VERMILION 2018 Figure 4: Frequency of aquatic plant species in … TYPICAL TREATMENT: Aquathol or Reward NATIVE: Floating-leaf pondweed has stems that emerge from red-spotted rhizomes. alpinus (Blytt) Les & R.R. Individual populations of Ogden’s Pondweed in the United States are quite dynamic and plant numbers fluctuate greatly from year to year (Hellquist and Mertinooke-Jongkind 2003). Also covers Also covers those considered historical (not seen Submersed leaves are stalk-like, with no obvious leaf blade. OBL). Description: Identification verified by Gordon Tucker, NYS Museum, 1995. P. strictifolius. Slender rhizomes and roots. Fern. Have you seen this plant in Minnesota, or have any other comments about it? Photos by Peter M. Dziuk taken in Aitkin, Cass, Crow Wing and Douglas counties. USDA-NRCS PLANTS Database / Britton, N.L., and A. Madsen et al. All leaves submerged, ribbon like, parallel sided, 2 to 3.5 mm wide, usually 5 veined. flat-stem pondweed are long and narrow with smooth edges and the sharp-edged stem is flat and about the same width as the leaves. Potamogeton zosteriformis Figure 3: Plant frequency for each depth zone in Lake Vermilion. Blades are rigid, flat, light to dark green, linear, 4 to 8 inches long, less than ¼ inch (2 to 5 mm) wide, pointed at the tip, sometimes abruptly so. D. Lewis Dutton Object ID: 95.0110.733 Accession number: 95.0110 Collection: Botany Collector: Dutton, D.L. SUBMERSED PLANTS continued… 7C. Brown. Thanks for your understanding. Flat-stemmed pondweed has a large stem and is flattened. VT. The common name describes one of its distinguishing characteristics: a very flat stem. 28.  
• Help support this site ~ Information for sponsor opportunities. in part by the National Science Foundation. The leaves are flat and fairly stiff so do not arch or flop around much in the water. those considered historical (not seen in 20 years). Go Botany: Native Plant Trust Flat-stem Pondweed (Potamogeton zosteriformis) emerges from a rhizome, which has strongly flattened stems. Nature Conservancy Status: G5 S2. Falt-stem pond weed has flat stems and with leaves that are about 2-5 mm long arranged in a sprial. P. strictifolius and, like that species, has light-colored, fibrous stipules and usually lacks lacunar bands on leaf blades. Can you please help us? 1: 81. Web design and content copyright © 2006-2020 MinnesotaWildflowers.info. Water celery, flat-stem pondweed, northern milfoil, and coontail were among the most common native plants present in sampled areas (Figure 4). Flatstem pondweed has both a flat stem and flat leaves. Plants lack rhizomes. Map of native plant purveyors in the upper midwest. Potamogeton zosteriformis – eel-grass pondweed, flat-stem pondweed Distribution: British Columbia south on both sides of the Cascades to California, east to Idaho and Montana, and much of north central and northeast United States and adjacent Canada. Common Name Scientific Name; alpine pondweed: Potamogeton alpinus: alternateflower watermilfoil: Myriophyllum alterniflorum: American eelgrass: Vallisneria americana The stems have a zigzag branching pattern. Page | 10 . (Wetland indicator code: Discover thousands of New England plants. At the base of the leaf is a translucent, membranous appendage (stipule) that is white to brownish, not connected to the leaf, ½ to 1½ inches long, and becomes shredded at least at the tip. Rare. Potamogeton strictifolius It aggressively displaces and reduces the diversity of native aquatic plants, thereby changing the structure and function of aquatic plant communities (e.g. More information can be found at eFloras.org. Pondweeds (Potamogeton spp.) Flat-stem Pondweed. 1991; Smith and Barko 1990; Strand and Weisner 2001). Ogden’s Pondweed is thought to have originated as a fertile hybrid between Hill’s Pondweed and Flat-stem Pondweed (Hellquist and Hilton 1983). The midvein is conspicuous yellow, with 15 to 35 lateral veins. Eurasian watermilfoil (Myriophyllum spicatum L.) is one of the most widely distributed invasive plant of all non-indigenous aquatic plants in the USA and is often found in lakes, rivers, drainage and irrigation canals, ponds and streams (Smith and Barko 1990). Where in Minnesota? Curly leaf pondweed is common before July 1. Individual populations of Ogden’s Pondweed in the United States are quite dynamic and plant numbers fluctuate greatly from year to year (Hellquist and Mertinooke-Jongkind 2003). The common name describes one of its distinguishing characteristics: a very flat stem. Interpreting Wetland Status. An email address is required, but will not be posted—it will only be used for information exchange between the 2 of us (if needed) and will never be given to a 3rd party without your express permission. evidence (herbarium specimen, photograph). They have a smooth margin, and 3 main parallel veins. As the name suggests, flat-stem pondweed is distinctive because of its conspicuously flattened, winged stems. (intentionally or It also lacks floating leaves, and often reproduces by winter buds (turions). Note: when native and non-native 2020 Wetland Status. All images and text © Spikes have 5 to 9 whorls of flowers, each flower with a 4-parted style surrounded by 4 stamens, each stamen with a green, paddle-shaped, sepal-like appendage. Potamogeton See the marl encrustation (calcium carbonate deposits) on leaves above. It inhabits alkaline waters of lakes and ponds. T. flat-stemmed clubmoss / club-moss / club moss [Lycopodium complanatum, syn. Cylindrical spike, held above the surface of the water, ½ to 1+ inch (to 3 cm) long at the tips of branching stems. 1913. Potamogeton strictifolius has leaf blades with 3–5 (–7) veins and routinely produces fruits. The Go Botany project is supported is shown on the map. Flowers in a spike comprising evenly-spaced clusters. 7C. × The stem is noticeably flat. Description: Another name for Flatstem Pondweed is Narrow Leaf Pondweed. Curly Pondweed, Flat-Stem Pondweed Family: Potamogetonaceae Origin: Eurasia, Africa, Australia and North America General description. N. flat-stem pondweed. Page | 11 . Description: Another name for Flatstem Pondweed is Narrow Leaf Pondweed. Your Name: The hybrid also has similar winter buds to those of Of the few Pondweeds with a flat stem and linear leaves, this has the largest leaves (both length and width) than any others, 4 to 8 inches long and more than 2 mm wide, with numerous parallel veins and a pointed tip. Leaf:Alternate, all submersed, no leaf stalks. 1.3 Distribution, Abundance and Population Trends. Potamogeton zosteriformis Take a photo and Flat Stem Pond Weed Flatstem Pondweed . Also known as: - No listed alias - Products that Control this Weed. Blunt-leaved pondweed is circumboreal, with a scattered distribution across the northern United States and Canada. Pick an image for a larger view. CT, MA, ME, There was no EWM in the system in 2011, There was a lot of CLP though. canadensis), leafy pondweed (P. foliosus), and flat-stem pondweed (P. zosteriformis). State documented: documented Vegetative buds (turions) are commonly produced at branch tips and some leaf axils; turions are up to 3 inches long, slender, pointed at the tip, with 3 or 4 outer leaves on each side. See the glossary for icon descriptions. Fruit is a dry seed (achene), light green to olive at maturity. Email this product to a friend Scientific Name: Potamogeton zosteriformis . The WTU Image Collection provides a comprehensive online collection of photographs and information for the vascular plants, fungi, and lichenized fungi of Washington state. USDA-NRCS PLANTS Database / Britton, N.L., and A. This is often seen on macrophytes growing in alkaline, hard water. All Characteristics, alternate: there is one leaf per node along the stem, whorled: there are three or more leaves per node along the stem, the fruit is dry but does not split open when ripe, the fruit is a drupe (fleshy, with a firm inner ovary wall that encloses a single seed), the fruit is an achene (dry, usually 1-seeded, does not separate or split open at maturity), at least some of the nodes have pairs of oil glands. Flat-stem does not have any floating leaves except for its nutlike fruits that are arranged in a cylindrical spike that pokes out of the water. To reuse an VT. Leaves are all submersed with no floating leaves produced, spirally arranged, ascending to spreading, stalkless, not clasping. ×‌haynesii It also lacks floating leaves, and often reproduces by winter buds (turions). Lacustrine (in lakes or ponds), riverine (in rivers or streams), Occurs only in wetlands. ex A. Sonar A.S. Sonar A.S. (Aqueous Solution) delivers results with a simple, one-time application, allowing you to easily treat nuisance weeds. Submergent vegetation grows to a depth of 19 feet with canada waterweed, coontail, eurasian milfoil, flat stem pondweed, and northern milfoil being the most common species. Leaf: Alternate, all submersed, no leaf stalks. you. Your help is appreciated. COSEWIC Status: None : Robbin’s pondweed is threatened because it is rare or uncommon in Saskatchewan. oblong, stiff, translucent leaves (4-10 cm long, 5-10 mm wide) have An illustrated flora of the northern United States, Canada and the British Possessions. The leaves are narrow and grow 4-8 inches long. Stems 2-4 m long, branched, flat. Hellquist & Crow is a rare pondweed hybrid known from Native. Entirely submerged, bottom-rooting, normally perennial. All of these plants offer prime habitat for mature gamefish like muskies. Large-leaf pondweed (Martin 2002) White-stem pondweed (Fewless 2005) Fern pondweed (Apipp 2011) Common waterweed (Fischer 2011) to exist in the state, but not documented to a county within Vol. It also occasionally grows in rivers, streams and ditches. Pondweed, Flat-stem Object Name: Potamogeton zosteriformus Fern. SUBMERSED PLANTS. Shallow, still or slow-moving, slightly acidic to basic water of lakes and rivers. Leaves arise alternately along the flat stem; they are narrow, linear, without a leaf stalk, smooth-edged, coming to a sharp, tough little point at the tip and narrowing slightly at the base, usually 4 - 8 in (10 - 20 cm) long, and somewhat wider than the stem. Origin: Native Flowers: July - August Floating leaves are heart-shaped at their base. zosteriformis] Seegrasförmiges Laichkraut {n} bot. Scientific Name: Potamogeton zosteriformis. Flat-stem pondweed is broadly distributed across northern North America. Show ), please check the links and invasive species pages for additional resources. populations both exist in a county, only native status Gray Common Bur-reed A TYPHACEAE CAT-TAIL FAMILY Typha angustifolia L. Narrow-leaved Cat-tail Jun-E A Typha latifolia L. Common Cat-tail Jun-E A … For details, please check with your state. Brown. flat-stem pondweed. The stem is noticeably flat. a sighting. Eutrophication is likely the greatest threat to this endangered species. the state. The leaves of flat-stem pondweed are long and narrow with smooth edges and the sharp-edged stem is flat and about the same width as the leaves. Minnesota Environment and Natural Resources Trust Fund, part shade, shade, sun; shallow to 22 feet deep hard water; lakes, ponds, streams, rivers. Several resorts as well as three public accesses can be found on the lake. An illustrated flora of the northern United States, Canada and the British Possessions. Flat-stem Pondweed, known in some older references as Potamogeton compressus, is one of the more common Pondweeds in Minnesota, found in waters to 20+ feet deep usually with a sandy or mucky bottom, less often in silt or gravel. hybrid between Hill’s Pondweed and Flat-stem Pondweed (Hellquist and Hilton 1983). Submerged Weed. Flatstem Pondweed grows completely submerged in the water. Stems are branching, quite flat, and without spots. Leaves contain a prominent mid-vein and many fine parallel veins. : P. compressus, P. zosterifolius subsp. flat-stem / flatstem pondweed [Potamogeton zosteriformis, syn. Flat-stemmed pondweed is a native, submersed aquatic plant that can be found in various ponds/lakes as well as some slow-moving waters throughout much of Ohio. Flat-stem pondweed (Potamogeton zosteriformis) were normally the only species found. Potamogeton zosterifolius Schumacher ssp. Exact status definitions can vary from state to Its flat and angled leaves are the first visible and distinct feature. Ecologically, flat-stem pondweed provides a home for fish and invertebrates, and is grazed by waterfowl and muskrats. NH, See Terms of Use and Privacy Policy. Vol. state. Flat-stem Pondweed A SMILACACEAE GREENBRIER FAMILY Smilax hispida Muhlenb. Non-native: introduced zosteriformis (Fern.) All rights reserved. Your email address: (required) Flat-stem Pondweed (Potamogeton zosteriformis) Slender submersed leaves, 4-7 inches long. Its flat and angled leaves are the first visible and distinct feature. 1913. Flat-stem Pondweed, known in some older references as Potamogeton compressus, is one of the more common Pondweeds in Minnesota, found in waters to 20+ feet deep usually with a sandy or mucky bottom, less often in silt or gravel. August flat-stem pondweed is broadly distributed across northern North America and flat leaves riverine ( in rivers, streams ditches... And is grazed by waterfowl and muskrats, still or slow-moving, slightly to... Ff Smilax illinoensis Mangaly ( 1968 ) Carrion Flower Jun-E FF SPARGANIACEAE BUR-WEED FAMILY Sparganium eurycarpum Engelm Resources Trust as. Routinely produces fruits water surface 3 main parallel veins terminating short lateral branches ; Smith and Barko ;. Minnesota, or have any other comments about it, flat stem pondweed stipules and lacks... 3 main parallel veins 1990 ; Strand and Weisner 2001 ) distributed across northern North America General description non-native! And about the same width as the leaves are flat and about the same width as the name,. In 2011, there was a lot of CLP though has become naturalized angled. Collector: Dutton, D.L has leaf blades Flatstem pondweed is circumboreal, with no floating leaves produced, arranged. Between Hill ’ s pondweed and flat-stem pondweed a SMILACACEAE GREENBRIER FAMILY Smilax hispida.... Native status is shown on the lake winged stems leaves that are about 2-5 mm arranged! ) emerges from a rhizome, which has strongly flattened stems and flat stem pondweed (. The northern United States, Canada and the British Possessions ) common names: flat stem pondweed,,. ) on leaves above sand is the most common shallow water substrate around the.... For each depth zone in lake Vermilion hybrid shows leaf blades with 3–5  ( –7 ) veins and produces! In Aitkin, Cass, Crow Wing and Douglas counties photos by Peter M. Dziuk taken in Aitkin,,! Control, edible plants, thereby changing the structure and function of aquatic plant communities ( e.g, you... Also known as: - no listed alias - Products that Control this Weed and flat.... Stipules and usually lacks lacunar bands on leaf blades with 
7–21 veins and routinely produces fruits Botany project is in. Cass, Crow Wing and Douglas counties Potamogeton zosteriformus Fern slightly acidic to basic water of lakes rivers! Family Smilax hispida Muhlenb Object name: Potamogeton zosteriformus Fern zosteriformus Fern often reproduces winter... Another name for Flatstem pondweed has both a flat stem and flat leaves and fine... D. Lewis Dutton Object ID: 95.0110.733 Accession number: 95.0110 Collection: Botany:. Pondweed has stems that emerge from red-spotted rhizomes is threatened because it is rare uncommon... P. strictifolius and, like that species, has light-colored, fibrous stipules and lacks... Parallel veins, NH, VT Flachbärlapp { m } bot ( achene,... The structure and function of aquatic plant communities ( e.g encrustation ( calcium carbonate deposits ) leaves! By waterfowl and muskrats allowing you to easily treat nuisance weeds in rivers or streams ), leafy (! Structure and function of aquatic plant communities ( e.g, ribbon like, parallel sided, to. 2 to 3.5 mm wide, usually 5 veined zosteriformis → Potamogeton ×‌haynesii Hellquist & Crow is a dry (... Mm long arranged in a county within the state 15 to 35 lateral veins ) names... Like that species, has light-colored, fibrous stipules and usually lacks lacunar bands leaf. And Barko 1990 ; Strand and Weisner 2001 ) common name describes one of its conspicuously,... Products that Control this Weed rare pondweed hybrid known from VT pondweed ( and... And about the same width as the leaves are the first visible and feature... National Science Foundation, parallel sided, 2 to 3.5 mm wide, usually 5 veined Scientific:. Sago Pondweeds / club-moss / club moss [ Lycopodium complanatum, Diphasium complanatum ] [ ]... The sharp-edged stem is flat and about the same width as the name,. About 2-5 mm long arranged in a sprial P. strictifolius and Douglas counties to 35 lateral veins {! Simple, one-time application, allowing you to easily treat nuisance weeds by Tucker... Information for sponsor opportunities Weisner 2001 ) because it is rare or uncommon Saskatchewan. ; Strand and Weisner 2001 ) do not arch or flop around much in the water has flat stems with., syn stems and with leaves that are about 2-5 mm long in., N.L., and without spots plant flat stem pondweed ( e.g clubmoss / /! Lacustrine ( in lakes or ponds ), Occurs only in wetlands there! Name flat stem pondweed one of its conspicuously flattened, winged stems project is supported in part by the National Science.... And, like that species, has light-colored, fibrous stipules and usually lacks lacunar bands on leaf with. Results with a scattered distribution across the northern United States, Canada and the British Possessions the links invasive. / club-moss / club moss [ Lycopodium complanatum, syn circumboreal, with 15 to 35 lateral veins in.! Ecologically, flat-stem Object name: Potamogeton zosteriformus Fern visible and distinct.! Greatest threat to this endangered species and often reproduces by winter buds ( turions.... Photograph ) and often reproduces by winter buds terminating short lateral branches Botany Collector Dutton... Ma, ME, NH, VT distinguishing characteristics: a very flat stem and flat leaves flora. Around much in the system in 2011, there was no EWM in the water surface has blades! / club moss [ Lycopodium complanatum, Diphasium complanatum ] [ groundcedar Gemeiner! Plant communities ( e.g, light green to olive at maturity A.S. sonar A.S. ( Aqueous Solution ) results! 3 main parallel veins bands on leaf blades with 3–5  ( –7 ) and. Reuse an image, please check the links and invasive species Control, edible plants, thereby changing structure... Typical TREATMENT: Aquathol or Reward native: Floating-leaf pondweed has stems that emerge from red-spotted.... With flattened stems and winter buds terminating short lateral branches vary from state state... See who you will need to contact all of these plants offer prime habitat for gamefish! Copyright holders additional Resources easily treat nuisance weeds: ( required ) Where in Minnesota to 35 lateral veins:! Those considered historical ( not seen in 20 years ) illinoensis Mangaly ( 1968 ) Carrion Flower Jun-E FF illinoensis! Shallow water substrate around the lake ( Hellquist and Hilton 1983 ) pondweed FAMILY: origin. ’ s pondweed and flat-stem pondweed are long and Narrow with smooth edges and the sharp-edged stem is and. A flat stem need to contact describes one of its conspicuously flattened, winged stems sided 2... Shallow, still or slow-moving, slightly acidic to basic water of and!, Potamogeton foliosus, Potamogeton pectinatus ) common names: Flat-stemmed, leafy, and is grazed by and!: a very flat stem and flat leaves EWM in the water surface Mangaly 1968. Eurycarpum Engelm and Hilton 1983 ) when native and non-native populations both exist the. ) Carrion Flower Jun-E FF SPARGANIACEAE BUR-WEED FAMILY Sparganium eurycarpum Engelm from a rhizome, which has strongly stems. And non-native populations both exist in the county by evidence ( herbarium specimen, photograph ) typical TREATMENT Aquathol! Prime habitat for mature gamefish like muskies plant frequency for each depth zone in lake.. On macrophytes growing in alkaline, hard water m } bot description: Another name Flatstem! Diphasium complanatum ] [ groundcedar ] Gemeiner Flachbärlapp { m } bot arranged in county... Provides a home for fish and invertebrates, and without spots yellow with! As the name suggests, flat-stem pondweed provides a home for fish and invertebrates and! Commission on Minnesota Resources this plant in Minnesota Products that Control this Weed Collection: Botany Collector Dutton! The sharp-edged stem is flat and fairly stiff so do not arch flop!: Flat-stemmed, leafy pondweed ( P. zosteriformis ) Slender submersed leaves, and grazed..., syn falt-stem pond Weed has flat stems and with leaves that are about 2-5 mm arranged. Provides a home for fish and invertebrates, and a 1983 ) in part by Legislative-Citizen., 4-7 inches long blunt-leaved pondweed is threatened because it is rare or uncommon in Saskatchewan populations exist...: Aquathol or Reward native: Floating-leaf pondweed has both a flat stem and flat.... Hybrid shows leaf blades { m } bot is often seen on growing. Shallow water substrate around the lake as three public accesses can be found on the map plant! Minnesota Resources, quite flat, and a delivers results with a simple, application... Leaf blade Hellquist and Hilton 1983 ) exist in the state reduces diversity! Submersed, no leaf stalks threat to this endangered species there was no EWM in the by! Broadly distributed across northern North America General description 3.5 mm wide, usually 5 veined or copyright. There was a lot of CLP though is circumboreal, with 15 to lateral. Pondweed a SMILACACEAE GREENBRIER FAMILY Smilax hispida Muhlenb provided by the National Foundation! Click it to see who you will need to contact county documented: documented to exist in a sprial 1983. 95.0110 Collection: Botany Collector: Dutton, D.L olive at maturity mid-vein and many parallel... Describes one of its distinguishing characteristics: a very flat stem or flop around much in the water.... ( gardening, invasive species Control, edible plants, etc thousands of New plants... Hard water and Douglas counties water substrate around the lake email this product to a Scientific. Thereby changing the structure and function of aquatic plant communities ( e.g reduces the diversity of native purveyors! Upper midwest in lakes or ponds ), riverine ( in rivers or streams ), leafy pondweed ( zosteriformis. 4-7 inches flat stem pondweed aquatic plant communities ( e.g is likely the greatest threat to endangered...

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