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  • Knotted Wrack, 1 of 6
    Photo 1 of 6

    (c) Elise Nyborg, some rights reserved (CC BY-NC)

  • Knotted Wrack, 2 of 6
    Photo 2 of 6

    (c) elmaddi, some rights reserved (CC BY-NC)

  • Knotted Wrack, 3 of 6
    Photo 3 of 6

    (c) hummingbird farm, all rights reserved

  • Knotted Wrack, 4 of 6
    Photo 4 of 6

    (c) R. LLM, some rights reserved (CC BY-NC)

  • Knotted Wrack, 5 of 6
    Photo 5 of 6

    (c) Jonathan Trouern-Trend, all rights reserved

  • Knotted Wrack, 6 of 6
    Photo 6 of 6

    (c) botanygirl, some rights reserved (CC BY)

1 of 6 photos

Knotted Wrack

Ascophyllum nodosum

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14,718 observations
iNaturalist Wikipedia

About

Ascophyllum nodosum is a large, common brown alga (Phaeophyceae) in the family Fucaceae, being the only species in the genus Ascophyllum. It is seaweed of the northern Atlantic Ocean, also known as feamainn bhuí, rockweed, Norwegian kelp, knotted kelp, knotted wrack or egg wrack. It is common on the north-western coast of Europe (from Svalbard to Portugal) including east Greenland and the north-eastern coast of North America.

Summary from Wikipedia, CC BY-SA 4.0.

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