is a green alga in the phylum Chlorophyta, of the genus Ulva, also known by the common names gutweed
and grass kelp
It can be found in Bering Sea near Alaska, Aleutian islands, Japan, Korea, Mexico, and Russia. Besides this, places it can be found in Israel, and in such European countries as Azores, Belgium, Denmark, Ireland, Norway, Poland, and in such seas as the Baltic and Mediterranean Sea.Description
The fronds of the species may be 3.9–11.8 in long and 0.24–0.71 in wide. They have rounded tips as well.
Recipes Using Gutweed see Here
Read More at Wikipedia