Ascophyllum nodosum, a seaweed also known as kelp. (noun)
Fucus vesiculosus, a similar seaweed also known as bladderwrack. (noun)
Examples of word rockweed
When gathering your equipment, look for rockweedâ€”it's the best seaweed for clambakes because its seawater-filled pockets burst during cooking and add brininess and moisture to the other ingredients.
Monaghan clambakes were all-day affairs, beginning early with the gathering of rockweed, stones and driftwood.
In a pinch, try buying rockweed from your fishmonger; it's used to pack shellfish and is often abundant where seafood is sold.
I would miss the birds: a pair of furious peregrine falcons, a northern goshawk with a nest at the top of a deformed spruce leaning over the water, the three crow pals that worked the rockweed at low tide eviscerating sea urchins, then picked ripe berries on the hillside for dessert.
The pictures of the rockweed are especially good, they make me miss the ocean so much.