Lindernia dubia is a small, aquatic plant commonly found in wetlands and shallow waters across North America. It belongs to the family Linderniaceae and is characterized by its slender stems and small, green leaves. The plant typically grows in clumps and can reach heights of up to 30 centimeters. This species produces small, tubular flowers that are usually blue or purple, attracting various pollinators. Lindernia dubia plays a role in its ecosystem by providing habitat and food for aquatic organisms. It is also used in aquariums for its aesthetic appeal and ability to improve water quality.