For more information on the habitat, vegetation, and weather of the area where I made this observation, please see the journal entry for April 28, 2012 here on iNaturalist. This was one of the various seaweed species on the rocky beach that I knew I could identify fairly easily. The large air pockets on the ends of the plant made it easy to identify. Oddly, the species I wanted was Fucus gardneri, but iNaturalist has decided that doesn't exist, so I have to go with Fucus distichus. This seaweed was not common along the beach and I only saw a few patches like this one here and there. It grows in small clumps and, in the clump I saw, each part of the seaweed I saw was about 3 inches long.