Leafy Pondweed

Isolated close up of leafy pondweed on white background.

Leafy pondweed has thread like branching stems. Submersed leaves are green to bronze, thin, and linear. Brown flowers grow in clusters.

Read More

Horned Pondweed

Horned pondweed floating in a cluster at the surface of the water.

Horned pondweed roots, stems, and leaves are all long and thread like. It has tiny single flowers in May or June. The seeds are horn shaped.

Read More

Waterthread Pondweed

Isolated close up of waterthread pondweed on white background.

Waterthread pondweed’s stems are thread like. Submersed leaves are thin and straight. Floating leaves are leathery with a rounded base.

Read More

Variable Leaf Pondweed

Close up of variable leaf pondweed floating on water.

Variable leaf pondweed’s submersed pointy leaves grow more than five inches long. Floating leaves can be almost three inches long with longer leaf stalks.

Read More

Ribbonleaf Pondweed

Close up of ribbonleaf pondweed from above.

Ribbonleaf pondweed’s submersed leaves are floppy and bright green to reddish. They grow two to 10 inches long and nearly a half inch wide.

Read More

Widgeon Grass

Mat of widgeon grass floating at the surface of the water.

Widgeon grass has thin branched stems and sharp pointed leaves that are thread like. Flower spikes can emerge slightly and are brown to yellow.

Read More

Variable Leaf Watermilfoil

Variable leaf watermilfoil in an aquarium.

Variable leaf watermilfoil has thick reddish stems and can have submersed and emersed leaves that are feathery, limp, and deeply divided.

Read More

Quillworts

Small cluster of quillworts growing underwater.

Quillwort leaves are quill like and grow from one central stand in swampy areas. Leaves are arranged in a spiral.

Read More

Indian Swampweed

Indian swampweed underwater.

Indian swampweed has compound leaves with opposite leaflets that can be emersed or submersed and are broader at the tip. This plant is uncommon.

Read More

Duck Lettuce

Duck lettuce floating in water with leaves and two flowers.

Young duck lettuce leaves are linear and become oblong, oval, or heart shaped as they mature. Some flowers stand above the surface with white petals.

Read More

Brittle Naiad

Isolated brittle naiad on white background.

Brittle naiad has dark green leaves with serrated edges. Leaves grow two-tenths of an inch long. Flowers can grow to three-fourths of an inch.

Read More

Flowering Rush

Flowering rush flowers, some buds, some open, some spent on a single plant.

Flowering rush can be submersed or emersed and has round stems that can grow up to four feet tall. Clusters of pink flowers grow on a single stalk.

Read More

Small Pondweed

Close up of small pondweed.

Small pondweed produces only submersed leaves that are light green and nearly three inches long and less than a quarter inch wide.

Read More

American Pondweed

American pondweed close in small cluster.

American Pondweed has elliptical shaped floating leaves that are green and often have brown spots.

Read More

Floating Leaf Pondweed

Floating leaf pondweed with flower spikes close up on top of the water.

Floating leaf pondweed has long, narrow, stiff submersed leaves and two to four inch long floating leaves on long stalks.

Read More

Marine Naiad

Marine naiad close up of spikes and stems.

Marine naiad is a submerged plant with small brittle leaves that are stiff and toothed.

Read More

Parrot Feather

Two parrot feather plants emerging with other plants submerged.

Parrot feather has feathered leaves that come above the water’s surface and can look like they are made of plastic.

Read More

Starry Stonewort

Starry stonewort cluster close up out of water.

Starry Stonewort resembles a submerged plant and can be identified by the little white stars amongst the gelatin-green branches.

Read More

Eurasian Watermilfoil

Eurasian watermilfoil in large cluster floating under pond surface.

Eurasian Watermilfoil has feather like leaves with 14-20 pairs of leaflets whorled around the hollow stem along the entire length of the plant.

Read More

Chara Algae

Cluster of chara algae.

Chara appears like a submerged plant, but it is not truly rooted. Chara is branched with whorls of leaf-like structures.

Read More