starry stonewort Directory References Discover What’s the Difference Between Llamas and Alpacas? 10 Famous Artworks by Leonardo da Vinci 9 of the World’s Deadliest Spiders 9 of the World’s Deadliest Snakes Which Religion Is the Oldest? 10 Infographics that Explain the Normandy Invasion During World War II Why Do Languages Die? Contents Ask Our Chatbot a Question starry stonewort green algae Ask Our Chatbot a Question Also known as: Nitellopsis obtusa Learn about this topic in these articles:stoneworts In stonewortAt least one species, the starry stonewort (Nitellopsis obtusa), is an invasive species in areas outside its native range.Read More Britannica ChatbotChatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.