Weed Control

How to Control Aquatic Weed Types and Aquatic Plants

Ponds grow a variety of pond weed types, many of which look similar. The aquatic weed identification information below lists the most common weed types -- including emergent, submerged, and floating weeds -- to help you explore and identify aquatic weeds in your pond or lake.

For those looking for weed control solutions, Lake Restoration has developed all-in-one pond and lake weed control kits that make it unnecessary to identify the type of weeds in your pond. Feel free to use the information below to facilitate your pond weed identification goals, or contact us today to talk to our customer support team about the right control product for your pond or lake.

Visual example of types of aquatic weeds, including submersed weeds, free floating weeds, emergent weeds, rooted floating weeds, algae, and excess nutrients.

Wild rice groups growing in shallow water.

Wild Rice

Annual wild rice: Annual wild rice has tall thick stems, large strap like leaves, branching flowers up to two feet long, and yellow or reddish fruits (edible gr...
Cluster of wild taro.

Wild Taro

Wild taro leaf stalks grow directly from the seeds and rarely reach four feet tall. Leaves are succulent and often purplish near the top.
Watercress over water.

Watercress

Watercress stems and leaves are medium green. Young leaves are simple while mature leaves are compound with three to 11 leaflets.
Close up of water wisteria in a group.

Water Wisteria

This aquarium plant can be completely submersed or emerge from the surface. Water wisteria has fern like stems and light green leaves.
Water spinach in large group covering water.

Water Spinach

Water spinach is a trailing vine with milky sap. Alternate leaves are usually arrowhead shaped and grow to seven inches long with pointed tips.
Water clover group floating on water.

Water Clover

Water clover is a type of fern that looks like a four leaf clover. Two toned leaves have four lobes that may be above or below the water’s surface.
Turtleweed in group in front of a lake.

Turtleweed

Turtleweed forms large colonies and looks shrub like. Pale green leaves are thin and curl slightly. Turtleweed has a strong odor.
Close up of sweet flag flower.

Sweetflag

Sweetflag leaves grow in clusters from horizontal underground stems. Simple leaves are bright green and up to six feet long.
Spotted water hemlock in a forest.

Spotted Water Hemlock

Clusters of tiny white flowers grow atop this poisonous plant. Spotted water hemlock grows two to six feet tall and has compound leaves.
Spikerush in a group.

Spikerush

Spikerush stems are straight and grow in clusters from the rhizomes. There are no leaves; flowers grow atop the stems.
Close up of smooth waterhyssop flowers and leaves.

Smooth Waterhyssop

Smooth waterhyssop has many branches with bright green leaves that are succulent and thick. Small white flowers can be tinged with blue or pink.
Close up of smartweed flowers.

Smartweed

Swamp Smartweed: Swamp smartweed has sword shaped leaves and small flowers that grow in clusters at the ends of branches. Flowers are greenish white with pink t...
Close up of salt grass leaves.

Salt Grass

Salt grass has rigid stems and grassy leaves that grow one to six inches long. Tan spikelets hold wide spiky flowers up to three inches long.
Reed mannagrass in a field.

Reed Mannagrass

Reed mannagrass has light green stems that can be more than eight feet tall. Rough leaves are angled out of the stem and grow nearly two inches wide.
Reed canarygrass in a field.

Reed Canarygrass

Reed canarygrass has tall round stems with alternate leaves that are tapered. Straw colored seed heads grow at the tops of the stems.
Pond sedge in groups growing out of the water.

Pond Sedges

Pond sedges grow six inches to four feet tall. Leaves have pointed tips and sometimes bend over. Flower spikelets grow in a spiral and are usually brown.
Close up of common pennywort leaves.

Water Pennyworts

Water pennyworts have long thin stems, long thin leaf stalks, and leathery bright green leaves that are mostly circular with frilly edges.
Large cluster of panic grass.

Panic Grass

Panic Grass: Grass like leaves are linear and flat or folded, growing two to six feet tall. Branching flowers grow in clusters and look brownish.   M...
Mud plantain in the water.

Mud Plantain

Mud plantain’s stems and leaves emerge; leaves are sword or egg shaped and leathery. Flowers have five thin petals and are usually purplish blue.
Close up of marsh dewflower.

Marsh Dewflower

Marsh dewflower has round stems, lance shaped leaves, and flowers with three petals that are pinkish purple on the edges and white in the center.