Crossword clue: any large blackish seaweed.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
large brown seaweeds having fluted leathery fronds
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
large brown seaweeds having fluted leathery fronds