It grows 1 to 2 feet (30 to 60 cm) long and up to 8 inches (20 cm) wide. It anchors itself by attaching itself to rocks.
In Britain, it is eaten more in Scotland.
It can be pickled in salt.
Or it can be stewed, then seasoned with lemon juice or vinegar, salt and pepper and butter or oil.
Soak dried Purple Laver in water for an hour before use.
Called “sloke” in Ireland.