There are several species of orache notable for the coast. Shore orache grows on the beach in the flood mark and along the borders of salt marshes and sea dikes. Babington's orache and spear-leaved orache grow between stones on sea dikes, above the high-tide water line. Frosted orache is also a species of the flood mark, particularly when it is made up of brown seaweed buried in sand. Oraches are commonly called saltbushes, thanks to the fact that their leaves retain so much salt.