(Phyllospadix japonicus)
Phyllospadix japonicus, known as Asian surfgrass, is a plant species found along the seacoasts of Japan, Korea, China (Hebei, Liaoning, Shandong). It occurs in the intertidal zone along the shore. Phyllospadix japonicus is a perennial herb spreading by means of rhizomes. Leaves are long, up to 100 cm long but rarely more than 2.5 mm across.