The organism is highly flattened and asymmetrical, with a firm pellicle and a consistent body shape marked by prominent longitudinal or oblique striations. It possesses both a flagellum and an eyespot (stigma), and its green chromatophores lack pyrenoids, appearing disc-shaped. It obtains nutrition through photosynthesis and is typically found in freshwater environments. In front view, the cell appears rigid and ovate, often with a short caudal process that is noticeably compressed and somewhat twisted. The outer layer (periplast) usually displays longitudinal striae or short spine-like projections. The chloroplasts are numerous and disc-shaped, while the paramylon bodies are typically one or two large, ring-shaped structures.