''Schoenoplectus heterochaetus'' 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 name slender bulrush. It is native to North America, where it can be found in scattered locations in

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 ...

.Flora of North America, Vol. 23 Page 49, ''Schoenoplectus heterochaetus'' (Chase) Soják, Cas. Nár. Mus., Odd. Prír. 140: 127. 1972.
/ref> ''Schoenoplectus heterochaetus'' grows in a variety of

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

habitat types, including

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...

es and

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much lar ...

s. It grows on land or in shallow water. It is a perennial herb growing from a large rhizome system. Its cylindrical stems grow erect to maximum heights sometimes exceeding two meters. The leaves are mostly located at the base of the stem, sheathing around it. 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 ...

is a

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit In botany, a fruit is the seed-bearing structure in flowering plants that is ...

of many cone-shaped spikelets on long, thin branches.Jepson Manual Treatment
/ref>

References

heterochaetus Flora of North America Plants described in 1904 {{Cyperaceae-stub