''Juncus cooperi'' is a species of rush 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 and

saline soil Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. Salts occur naturally within soils and water. Salination can be caused by natural processes such as mineral weathering or by the ...

s 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 Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

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 {{Poales-stub