Starry stonewort is named for the tiny star shaped bulbils on its root system (usually observable in the late summer). It is native to Europe and Asia. First reported in the St. Lawrence River in 1978, it is now found in many inland lakes and it’s spreading. Starry stonewort growth may overwhelm native and non-native plants and thick mats on the lake bottom may interfere with fish spawning and recreational activities. It can regrow from fragments and will hitch-hike on boats, anchors, and other gear. Starry stonewort looks like a plant but is actually a macroalgae, an early ancestor of plants. Practicing and promoting Clean, Drain, and Dry (including a high pressure, hot water wash if available) will help prevent the transport and spread of this and other aquatic invasive species. Information Courtesy of UW-Extension Lakes Program

Image courtesy of Vermont Invasives

For more information go to  Starry Stonewort Collaborative