Toothed wrack is a decorative brown seaweed, with serrated edges. It looks a lot like bladder wrack however it lacks the inflated bladders. It grows in the lowest zone of the tidal region, and is often found sprinkled with flat periwinkles and the polyp Dynamena pumila. Toothed wrack is not found in the Wadden Sea but it is very common in the delta region.
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