Starry stonewort (Nitellopsis obtusa) is an aggressive aquatic invasive macroalgae that can be found anchored to the bottom of lakes and resembles common aquatic plants. In the right conditions, it can produce dense “meadows” that cover large areas of a lake basin, causing tangled mats and hindering recreation, fish habitat, and beneficial native plants. Starry stonewort is easily spread from lake to lake by boat trailers, anchors, and other equipment.
Not sure if starry stonewort is present in your lake?
View our new STOP Starry Stonewort fact sheet to learn how to identify this grass-like plant and prevent its spread. As with other nuisance aquatic plant species, the early detection of starry stonewort can lead to a rapid response which is critical to preventing or managing invasions in your lake.
