seacoast bulrush

It is a perennial herb growing from a rhizome system with associated tubers. The erect stems are three-angled, the angles rough with short hairs. They reach well over a meter in maximum height. The leaves sheath the stem and have long, flat or v-shaped blades. The inflorescence bears one or more clusters of many spikelets as well as long, leaflike bracts. It often occurs alongside, resembles, and hybridizes with its close relative Bolboschoenus maritimus. This plant is an important food source for waterfowl on the Gulf Coast of the United States. The seeds are food for birds and other animals, such as muskrats. Native American tribes such as the Pomo and the Kawaiisu have traditionally used the plants for basketry, and some peoples eat the tubers as well.

B. robustus is native to North America, where it can be found along the eastern and southern coasts from Nova Scotia south to Florida and along the Gulf coastline to Tabasco. It is also known in California, Bermuda, the Bahamas and northern South America. It is most often a coastal species, occurring in wet habitat such as marshes in brackish and saltwater.