underwater halodule seagrass in shallow seawater - natural aquatic plant background

alismatales andaman angiosperm aqua aquatic aqueous asia asian background beach bed coast coastal coastline cymodoceaceae earth ecosystem environment evergreen flora flowering geologic grass grassland green greenery ground havelock india indian island islands lawn lush manatee marine meadow monocotyledons muddy natural nature ocean oceanic pasture pelagic pinifolia planet plant saline salt saltwater sandy sea seagrass seashore seaside seawater semitropical shallow shore soil species subaquatic subaqueous submarine sunken thalassic tropical turf under undersea underwater vegetation water