| image_caption =Two fronds of ''Laminaria digitata'' washed up on the foreshore of Anglesey, Wales, UK; background is mostly ''Ascophyllum nodosum''.
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| range =
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| description =Ascophyllum nodosum is an edible seaweed of the northern Atlantic Ocean. Ascophyllum nodosum has long fronds with large egg-shaped air-bladders set in the fronds at regular intervals and not stalked. The fronds can reach 2 m in length. They are attached by a holdfast to rocks and boulders. The fronds are olive-brown in color and somewhat compressed but without a mid-rib.
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| description =The name ''water net'' comes from its shape, which looks like a netlike hollow sack. It can grow up to several decimeters.
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}}
Revision as of 00:02, 9 December 2020
{{Species id
| common_name =Knotted wrack, Egg wrack
| latin_name = Ascophyllum nodosum
| color = tan
| image = Laminaria.jpg
| image_caption =Two fronds of Laminaria digitata washed up on the foreshore of Anglesey, Wales, UK; background is mostly Ascophyllum nodosum.
| description =Ascophyllum nodosum is an edible seaweed of the northern Atlantic Ocean. Ascophyllum nodosum has long fronds with large egg-shaped air-bladders set in the fronds at regular intervals and not stalked. The fronds can reach 2 m in length. They are attached by a holdfast to rocks and boulders. The fronds are olive-brown in color and somewhat compressed but without a mid-rib.