A brown alga, Ascophyllum nodosum, backlit on a black background.

A brown alga, Ascophyllum nodosum, also known as rockweed, Norwegian kelp, knotted kelp, knotted wrack or egg wrack.

Size: 3456px × 5184px
Location: North America
Photo credit: © Custom Life Science Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alga, algae, ascophyllum, brown, chromalveolata, fucaceae, fucales, heterokontophyta, islc, kelp, knotted, nodosum, phaeophyceae, rockweed, wrack