The Fucaceae are a family of brown algae, containing six genera:
Dwarf rockweed, Pelvetiopsis limitata, north Moonstone near Cambria, CA
Wrack is part of the common names of several species of seaweed in the family Fucaceae. It may also refer more generally to any seaweeds or seagrasses that wash up on beaches and may accumulate in the
Pelvetia canaliculata, "channelled wrack"
Accumulation of detrital seagrass wrack (Posidonia australis) at West Beach, South Australia
Wrack washed ashore in Brunswick, Georgia by Hurricane Matthew