Aquatic Nuisance - Brittle Naiad

Brittle Naiad (Najas minor)

Where did it come from?

Originates from Europe, Turkey, Northern Africa, India and Japan.

Where can it be found in South Dakota?
Currently found in McCook Lake in Union County.

What does it look like?
They grow below the water surface. In deep water they have long wavy stems, and in shallow water they are dense and bushy similar to milfoil and Curlyleaf Pondweed.
It is often times mistaken for Chara. Chara has a musky smell when crushed, and Brittle Naiad does not.

Why are Brittle Naiad a problem?
It can become a problem when it becomes overly abundant in some areas, but for the most part it's not a nuisance and is best left alone.

How are Brittle Naiad spread?
Reproduces by fragmentation, plant fragments easily transported in livewells, bilge water, and on boat trailers.