It is typically found over gravel, sand, silt or mud in sites where the water is base-rich, eutrophic or slightly brackish. Whole plant is very slender and thread-like, to 20 in (50 cm) tall, growing submersed and with only one type of leaf. Threadleaf Pondweed . (Christian Fischer/Wikimedia Commons). Collated by the National Biodiversity Data Centre from different sources, Species Data from the National Vegetation Database, National Biodiversity Data Centre, Ireland, Slender-leaved Pondweed (Potamogeton filiformis), accessed 12 December 2020, , National Biodiversity Data Centre, Ireland, Slender-leaved Pondweed (Potamogeton filiformis), image, accessed 12 December 2020, , Species Data from the National Vegetation Database, Slender-leaved Pondweed (Potamogeton filiformis). Location: Grow below water surface; are firmly rooted; have branched, slender stems; have grasslike, narrow leaves; may have flowers or seeds extending above water surface; are limp when out of the water. Boerner (formerly Potamogeton filiformis): Threadleaf pondweed, fineleaf pondweed, slender-leaved pondweed. slender leaved pondweed [stuckenia filiformis syn potamogeton filiformis] definition in the English Cobuild dictionary for learners, slender leaved pondweed [stuckenia filiformis syn potamogeton filiformis] meaning explained, see also 'sender',spender',sled',sledge', English vocabulary Aquatic. Other features: This species and Slender-leaved Pondweed form a group different from the other pondweeds in that the spike has the fruit much less dense and sometimes rather gappy. Boerner (formerly Potamogeton filiformis): Threadleaf pondweed, fineleaf pondweed, slender-leaved pondweed. alpina Slender-leaved Pondweed Longleaf pondweed (Also known as American Pondweed) is a native perennial aquatic plant common to the Southern Great Plains. Slender-leaved Pondweed Potamogeton filiformis Beurteilung der Machbarkeit von Inselschüttungen, Steg und Aussichtsturm im Bereich des Aabach Deltas … Some leaves have a purplish tint. Potamogeton filiformis, Slender-leaved Pondweed Photographed by Gary Larson Return to Potamogeton filiformis Page | Return to Submersed Plants the map you may change either the width or the height attributes to a specific size in pixels i.e. ... there are only slender roots on the plant Leaves. Slender pondweed is also known as small pondweed. *Submersed Leaves: Filiform, 1-8 cm long and 1-2 mm wide, and attached directly to the stipule (not the stem). Species Detail - Slender-leaved Pondweed (Potamogeton filiformis) - Species information displayed is based on the dataset "Online Atlas of Vascular Plants 2012-2020". Plant type: HABITAT. If you are one of the editors of this guide it should copy everything, but if you're not, it will only copy the licensed content. Stuckenia filiformis ssp. Flowers in a spike comprising evenly-spaced clusters. Hybrids are recorded with Potamogeton octandrus (P. × apertus Miki), P. polygonus (P. × attenuatus Hagstr. Hultén • CT, MA, ME, NH, VT. The multiple long stems often form masses at the water surface. Haynes Kaplan, 2008; Coleogeton filiformis subsp. Blunt-leaved pondweed grows annually from turions and seed, producing branching plants with slender, flattened stems that have well-developed nodal glands (these appear as two raised bumps on the stem where the leaf attaches). Potamogeton filiformis - Slender-leaved Pondweed. HYBRIDIZATION Where their ranges overlap, Slender Pondweed and Sago Pondweed are known to hybridize resulting in Potamogeton x suecicus (P. filiformis x P. pectinatus) (Preston et al. Home; Hunting. The grass-like Fennel Pondweed is a submerged plant that grows from a creeping rhizome. (Photo courtesy Maryland DNR), Slender pondweed has thin, grass-like leaves that grow alternately along slender, branching stems. 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