Answer: seamoss

AnswerCrossword Clue
SEAMOSSFrondlike red algae
SEAMOSSType of red algae
SEAMOSSRed alga
SEAMOSSCertain red algae
SEAMOSSColor similar to grape green
SEAMOSSRed alga with gracefully elaborate fronds.
SEAMOSSDelicately fronded algae.
SEAMOSSPersian green
SEAMOSSRed algae
SEAMOSSAlgae touted as a superfood