''Amphiscirpus'' is a monotypic genus of flowering plants 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 ...

containing the single species ''Amphiscirpus nevadensis'', which is known by the common name Nevada bulrush. This plant was formerly included in genus '' Scirpus''.Goetghebeur, P. and D. A. Simpson. (1991). Critical notes on ''Actinoscirpus'', ''Bolboschoenus'', ''Isolepis'', ''Phylloscirpus'' and ''Amphiscirpus'' (Cyperaceae). ''Kew Bulletin'' 46:1 169-78. It is native to western North America, including the western Canadian provinces and the northwestern United States, as well as southern South America. It grows in wet and seasonally wet habitat, often on

saline Saline may refer to: * Saline (medicine), a liquid with salt content to match the human body * Saline water, non-medicinal salt water * Saline, a historical term (especially US) for a salt works or saltern Places * Saline, Calvados, a commune in ...

and alkaline soils. It is a perennial herb growing from a small, hard rhizome. The erect stems are stiff, ridged, and cylindrical, not three-angled. It lacks aerenchyma, a trait which makes it different from many of its relatives. The stems are sheathed by tough long leaves. 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 headlike cluster of a few cone-shaped spikelets accompanied by a long, stiff bract which looks like an extension of the stem.

References

External links

Jepson Manual TreatmentUSDA Plants ProfileFlora of North AmericaPhoto gallery
Cyperaceae Monotypic Cyperaceae genera Flora of the United States Taxa named by Sereno Watson {{Cyperaceae-stub