cladophora
/klədəˈfɔrə/Definitions
1. noun
A genus of green algae, often forming slimy growths or mats.
“The lake’s water was cloudy due to the growth of cladophora algae.”
2. noun
A type of algae causing a slimy coating on rocks or other surfaces in freshwater environments.
“After the rain, a thick layer of cladophora covered the river rocks.”