Zosteraceae is a group of marine angiosperms that commonly go by the name of "eelgrass." Synonyms for Zosteraceae include seagrasses, marine flowering plants, and hydrocharitaceae. Seagrasses are widespread in the world's oceans and are a crucial part of the marine ecosystem. They provide shelter and food for numerous marine creatures, including sea turtles, dugongs, and manatees. Additionally, seagrasses help maintain water quality by filtering pollutants, stabilize sediment, and prevent coastal erosion. The Zosteraceae family includes several species, including Zostera marina, Phyllospadix serrulatus, and Thalassia testudinum. These plants have adapted to life in the ocean and are essential to maintaining a healthy marine environment.