''Scirpus congdonii'' is a species of flowering plant in the sedge family known by the common name Congdon's bulrush after noted Californian botanist J.W. Congdon. It is native to the mountains and plateaus of far northern

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

and adjacent sections of southern

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

and western

Nevada Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...

. It can be found in

wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

habitat and other moist areas, such as mountain meadows and waterways. It is a

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

herb forming a loose or dense clump of erect stems growing up to half a meter tall, solitary stems sometimes occurring as well. The stems are three-angled and narrow at the middle. Sheathing leaves occur at the stem bases as well as higher up the stems. The

inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a mai ...

occurs at the end of the stem, with small additional ones growing from leaf axils. The inflorescence consists of several clusters of many spikelets wrapped at the bases in a leaflike

bract In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...

References

External links

Jepson Manual TreatmentUSDA Plants ProfileFlora of North AmericaPhoto gallery
congdonii Flora of California Flora of Nevada Flora of Oregon Flora of Northern America Plants described in 1918 Flora without expected TNC conservation status {{Cyperaceae-stub