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Rhodophyta · Red Seaweed

Ptilota serrata

Kützing
Phylum
Rhodophyta
Class
Florideophyceae
Order
Ceramiales
Family
Wrangeliaceae

Ptilota serrata

Northern sea fern

Authority
Kützing
Thallus is dark red, dull, finely branched, reaching 25 cm (9 in) tall; with branching in opposite pairs, with both branchlets having the potential to elongate, branch and produce reproductive structures although usually one of a pair develops ahead of the other.

Habitat

This annual is found on rock in the low intertidal to subtidal of semi-protected to semi-exposed habitats.

North Pacific Distribution

Bering Sea and Aleutian Islands to Southeast Alaska; Japan; Russia

Former scientific names

Ptilota pectinata

Similar taxa

Ptilota asplenioides, other Ptilota spp.

References

Last updated December 26, 2010

Photos