holdfast...: Alaria marginata
holdfast...: Analipus japonica
holdfast...: Coilodesme californica
holdfast...: Costaria costata
holdfast...: Cystoseira osmundacea
holdfast...: Desmarestia herbacea
holdfast...: Dictyoneurum reticulatum
holdfast...: Egregia menziesii
holdfast...: Laminaria setchellii
holdfast...: Laminaria sinclairii
holdfast...: Pelvetiopsis limitata
holdfast...: Petalonia fascia
holdfast...: Postelsia black and white
holdfast...: Postelsia palmaeformis
holdfast...: Scytosiphon lomentaria
holdfast...: Silvetia compressa
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holdfast...: Fucus gardneri