2. (noun) southern laver, Porphyra columbina - a greenish-purple edible seaweed with a tough, silky texture. Found on upper intertidal rocks on moderately sheltered coasts. Called parengo in eastern dialects.
Hei ngā ngahuru me ngā takurua ka katohia te karengo (Te Ara 2015). / Karengo seaweed is harvested in the autumn and winter.