Silvetia compressa (J.Agardh) Serrao et al.
Phylum Ochrophyta, Class Phaeophyceae, Order Fucales, Family Fucaceae
Thallus to 90 cm long, dichotomous branches 2-5 mm wide; subcylindrical with branch tips more compressed; dark olive-green to yellowish-brown.
Common, mid-intertidal zone, protected outer coast.
Geo Range: British Columbia to Baja
Synonyms: Pelvetia fastigiata, Fucus compressus
Similar species: Fucus & Hesperophycus have wider, more flattened thalli; Hesperophycus has white hairs.