This centric diatom creates unbranched, singular rows that span from 8 to 80 micrometers in diameter. Each individual cell possesses a characteristic shell composed of two valves. When viewed from the side, these valves appear rectangular or round, while in shell view, they present a circular shape. Within the cells, numerous disc-shaped or slightly irregularly shaped plastids carry a golden-brown hue due to fucoxanthin. Asexual reproduction happens through the customary division of diatoms into two parts. For sexual reproduction, it engages in monogamy.