It is known by many common names like Norwegian kelp, egg wrack, rockweed, knotted wrack and knotted kelp.

Fronds: Ascophyllum Nodosum has elongated fronds without midrib. They have air bladders looking like eggs, situated at a certain space from each other.
They stick to the rocks with the help of hold-fasts which are root-like structures.

Color : Fronds display a mix of olive and brown colors.

Size   : The fronds measure approximately 2 meters in length.

Taste : These sea weeds have a salty taste.

It is widely used for making human and animal food apart from medicinal supplements. It is also used for making agricultural products.