Knotted Wrack Ascophyllum nodosum (L.) Le Jolis    Synonyms: Ascophyllum nodosum f. scorpoides.
Kingdom Chromista   >   Phylum Phaeophyta   >   Class Phaeophyceae   >   Order Fucales   >   Family Fucaceae   >   Genus Ascophyllum   

Where to find:

Knotted Wrack is often found washed ashore on the Atlantic Coast after a storm. You can also find it attached to stone along the coast and in some of the coastal bays. The plants in Maryland are often diminutive (1 foot or less) compared to the large plants found farther north, which may be several feet in length.

There are 8 records in the project database.

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Ascophyllum nodosum in Wicomico Co., Maryland (4/28/2019). Photo by Wayne Longbottom. (MBP list)

Ascophyllum nodosum in Worcester Co., Maryland (6/20/2018). (c) spully, some rights reserved (CC BY-NC). Photo by spully via iNaturalist. (MBP list)

Ascophyllum nodosum in Worcester Co., Maryland (Date obscured). (c) johnbotany, all rights reserved. Photo by John Hall. (MBP list)

Ascophyllum nodosum in Worcester Co., Maryland (Date obscured). (c) johnbotany, all rights reserved. Photo by John Hall. (MBP list)

Ascophyllum nodosum in Wicomico Co., Maryland (5/4/2019). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Ascophyllum nodosum in Wicomico Co., Maryland (5/4/2019). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)


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