Halophila ovalis

Halophila ovalis, commonly known as paddle weed or oval seagrass, is a fully aquatic marine seagrass that lives submerged in shallow coastal saltwater environments and is not suitable for typical home or garden cultivation. It plays a critical ecological role as habitat and food for marine life including dugongs and sea turtles. This species is best appreciated in its natural habitat and is generally not available through commercial nurseries.