Plants Found in Lakes & Ponds

Written by emma watkins
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Introduction
  • Introduction

    Plants Found in Lakes & Ponds

    Some of the plants in lakes and ponds are beneficial, and others are considered invasive. Birds, amphibians, reptiles and mammals make nests and feed on aquatic plants. Barrow's goldeneye duck is just one species of waterfowl that nests in the vegetation growing in shallow water on the shores of ponds and lakes. On the other hand, plants such as purple loosestrife change entire water ecosystems with their invasive nature.

    Ponds support many plant species. (Pond image by Adam from Fotolia.com)

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    Bulrush

    Bulrush grows in shallow water, and it is the nest of choice of different birds, reptiles, insects, amphibians and fish. Water birds also feed on the plant's seeds, and muskrats eat its stems and roots. This plant has a hard stem that tapers at the top. Close to the tapered end, short branches sprout and hold clusters of grey to brown flowers.

    Bulrush provides a nesting area to birds and other animals. (bulrush image by lixai from Fotolia.com)

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    Cattail

    The cattail's name comes from the spongy brown section of the plant's long stem, which to some resembles a cat's tail. It has creeping roots that propagate quickly in shallow water, and its stems are so hard that muskrats use them to build their homes. Groups of this plant also serve as a nesting area for red-winged and yellow-headed blackbirds, as well as others.

    Cattail propagates quickly through creeping roots. (cattail image by Derek Abbott from Fotolia.com)

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    Filamentous Algae

    If you've ever seen a green layer of vegetation covering a large portion of a pond or lake, you were probably looking at filamentous algae, sometimes called "pond scum." This algae, as the name suggests, is composed of millions of filaments without leaves, roots or stems that float on the surface of slow-moving water. Missouri considers it a nuisance aquatic plant because where it exists, no one can fish or swim. Filamentous algae also has the potential to block sunlight and render water intake screens useless.

    Some algae create a mat on ponds, making fishing and swimming impossible. (abstract algae image by maxthewildcat from Fotolia.com)

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    Watershield

    The watershield is native to the state of Florida. Its oval, shield-shaped leaves float on the surface of the water, while its leaf stalks extend both above and below the water. The leaf stalks grow to depths of 6 feet and attach to the plant's root buried in mud on the bottoms of lakes and ponds. The watershield also produces a small purple flower that stands above water on a stem.

    Watershield resembles the waterlily. (waterlily"s image by John Hofboer from Fotolia.com)

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    Purple Loosestrife

    Purple loosestrife arrived in North America from Europe in the 19th century in the luggage of immigrants who valued its purple flowers. It has since become an invasive aquatic plant, taking over any waterway where it creates roots. Other plants usually can't compete with purple loosestrife and are eliminated from the ecosystem, which leads to the disappearance of animals dependent on them for nutrition. Purple loosestrife has a four-sided stem, close to which small purple flowers bloom on the top end. The plant's leaves appear on the stem under the flower cluster.

    Purple loosestrife invades and changes ecosystems. (loosestrife on a meadow image by Maria Brzostowska from Fotolia.com)

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