''Schoenoplectus subterminalis'' is a species of flowering plant in the

sedge family The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus '' Carex'' wi ...

known by the common names water bulrush, water club-rush, and swaying bulrush. It is native to North America, where it is known from many parts of the

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tota ...

and the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...

. It has been common in the northeastern US and eastern Canada as well as the Great Lakes region, as well as many locations in the mountains of the West, though apparently absent from the Southwest and from most of the Great Plains. ''Schoenoplectus subterminalis'' grows in moist and wet habitat, and often grows in shallow water, sometimes entirely submerged. It is a perennial herb forming mats or tufts of very narrow cylindrical stems easily exceeding one meter long. There is a rhizome and sometimes

tuber Tubers are a type of enlarged structure used as storage organs for nutrients in some plants. They are used for the plant's perennation (survival of the winter or dry months), to provide energy and nutrients for regrowth during the next growin ...

s grow on it. When the plant grows in water only the

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed ...

s and the tips of the leaf blades break the surface. The inflorescence is generally a single cone-shaped spikelet at the end of the stem accompanied by a stiff, stemlike bract.

References

External links

US Forest Service Fire EcologyPhoto gallery
subterminalis Freshwater plants Flora of North America Plants described in 1823 Taxa named by John Torrey {{Cyperaceae-stub