An abundant brown seaweed in Puget Sound. Dark brown with a greenish hue. The thallus is flat with a midrib running thru the middle of the branches. Individuals grow to 40-50 cm and live up to four years. The tips of mature individuals swell up and provide flotation for the plant.
Spotted washed ashore at Joseph Whidbey State Park. Fucus gardneri inhabits the high to mid intertidal and thrives in both exposed and protected areas. It can tolerate a wide salinity range and withstand desiccation during long periods of exposure.