Eelgrass, turtle grass and widgeon grass are common types of sea grass and are usually found along the Atlantic coast of North America. Some Alaskan estuaries are also known to have vast sea grass beds.

Sea grasses can produce a flower that blooms underwater. Seeds from these flowers will spread through the water and settle on the nearby sandy bottom producing more sea grasses. But this is not the only way sea grasses can reproduce. Their root-like structures (rhizomes), which are buried just beneath the sandy bottom, can sprout new grass-like leaves.