Type

Information

Toxicity

Non-toxic.

Control

Mechanical and herbicide. Contact your County Weed District or local Applicator for more information.

Habitat

Shallow, deep, still or flowing waters.

Root

Extensive and dense root system.

Leaf Shape

Oblong with lasagna noodle-like, tiny, ragged edges.

Lifespan

Perennial; two years or longer.

Priority 2B Weed

Abundant in Montana and widespread in many counties.

Similar Looking Plants

Claspingleaf pondweed.

Important Information

This plant produces small greenish brown pinecone look-a-likes called turions. It forms dense mats in the water and appears reddish-brown in the water, but is actualy green when pulled out of the water.