''Juncus cooperi'' is a species of
rush
Rush(es) may refer to:
Places
United States
* Rush, Colorado
* Rush, Kentucky
* Rush, New York
* Rush City, Minnesota
* Rush Creek (Kishwaukee River tributary), Illinois
* Rush Creek (Marin County, California), a stream
* Rush Creek (Mono Cou ...
known by the common name Cooper's rush. It is native to the deserts of the southwestern United States and northern Mexico, where it grows in
alkaline
In chemistry, an alkali (; from ar, القلوي, al-qaly, lit=ashes of the saltwort) is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a ...
and
saline soils such as those around
salt marsh
A salt marsh or saltmarsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is domin ...
es and desert springs. This is a perennial herb forming large clumps of erect stems up to about 80 centimetres tall from a thick
rhizome and large root network. The bases of the stems are surrounded by sparse, small leaves, which are stiff and have sharp tips. 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 cluster of brown, pale green, or straw-colored flowers accompanied by one
bract which appears as an extension of the stem.
External links
Jepson Manual TreatmentPhoto gallery
cooperi
Plants described in 1868
Flora of the Southwestern United States
Flora of Mexico
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