Department Header For Noxious Weed Division
Yellowstone County, Montana
Noxious Weed
Weed Information Contact Department

Curly Leaf Pond Weed
(Potamogeton crispus)


Curly Leaf Pondweed is Aquatic

Curly Leaf Pondweed 1

Curly Leaf Pondweed 2

Curly Leaf Pondweed 3

Curly Leaf Pondweed 4

Curly Leaf Pondweed 5

Photos from Montana Weed Control Association







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


Shallow, deep, still or flowing waters.


Extensive and dense root system.

Leaf Shape

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


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.

Information Supplied By Montana Weed Control Association


Video Supplied By Montana Weed Control Association