Home / Ochrophyta / Phaeophyceae / Laminariales / Laminariaceae
Ochrophyta · Brown Seaweed

Laminaria repens

Ruprecht
Phylum
Ochrophyta
Class
Phaeophyceae
Order
Laminariales
Family
Laminariaceae

Laminaria repens

Northern rhizome kelp

Authority
Ruprecht
Thallus of this brown kelp has a branched, rhizomatous holdfast, with numerous stipes arising from the extensive holdfast structure. A long, narrow blade, less than 5 cm (2 in) wide and up to 50 cm (20 in) long, extends from each stipe. C. bulligera and Porphyrella gardneri are common epiphytes along old blade margins.

Habitat

This perennial kelp grows on rock in the low intertidal of semi-exposed to exposed habitats.

North Pacific Distribution

Bering Sea and Aleutian Islands, Alaska to Southeast Alaska; northern Washington; Russia

Former scientific names

misidentified as Laminaria longipes

Similar taxa

Lessoniopsis also has narrow blades but a different holdfast.

References

Last updated December 26, 2010

Photos