Silva Center for Phycological Documentation, UC Berkeley

Common Seaweeds
of Point Reyes
National Seashore


You can sort these photos in three ways to help you identify what you see:
Name: The scientific name consists of a genus and species.
Tide level: High: Near the top of the intertidal zone that is exposed except at the highest tides; Middle: The broad swath exposed by most low tides; Low: Exposed only at low tide.
Color: Arranged by their color in the field, from golden > green > brown > red > pink.
Hover on the photo for brief description. Click for more photos and information from the UC Berkeley Herbarium.
Ahnfeltiopsis linearis
Alaria marginata
Analipus japonicus
Bangia
Blidingia minima
Calliarthron tuberculosum
Callithamnion pikeanum
Chondracanthus canaliculatus
Cladophora columbiana
Codium fragile subsp. californicum
Codium setchellii
Colpomenia bullosa
Constantinea simplex
Corallina vancouveriensis
Cryptopleura lobulifera
Cryptopleura ruprechtiana
Cryptosiphonia woodii
Cumagloia andersonii
Dilsea californica
Egregia menziesii
Endocladia muricata
Erythrophyllum delesserioides
Farlowia compressa
Farlowia mollis
Fucus distichus
Gelidium coulteri
Halosaccion glandiforme
Hymenena flabelligera
Laminaria setchellii
Laminaria sinclairii
Leathesia marina
Mastocarpus
Mazzaella flaccida
Mazzaella oregona
Mazzaella splendens
Microcladia borealis
Neogastroclonium subarticulatum
Neorhodomela larix
Nereocystis luetkeana
Odonthalia floccosa
Osmundea spectabilis
Pelvetiopsis limitata
Petrospongium rugosum
Prionitis lanceolata
Prionitis sternbergii
Pyropia perforata
Sarcodiotheca gaudichaudii
Sargassum muticum
Silvetia compressa
Smithora naiadum
Stephanocystis osmundacea
Ulva californica
Ulva linza
Ulva lobata
Urospora
Acknowledgments:
Kathy Ann Miller surveyed seaweeds at Point Reyes in 2014, took most of the photos and provided text and annotations. She thanks Richard Moe for working with her to design this website and Richard Moe and Bob Case for contributing photos.
Contact: kathyannmiller at berkeley.edu