The valves typically have a linear shape at the center, measuring between 60 and 600 μm in length (usually falling within the range of 150-250 μm) and a width of 5-9 μm. They taper towards blunt, slightly pointed, or beak-like tips that are less than half the valve’s width. This species is widespread and displays significant morphological diversity, frequently found in mesotrophic to eutrophic aquatic environments.