Juncus articulatus

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Juncus articulatus
JuncusArticulatus.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Juncaceae
Genus: Juncus
Species: J. articulatus
Binomial name
Juncus articulatus
L.
Juncus articulatus - läikviljaline luga Keilas.jpg

Juncus articulatus is a species of rush known by the common name Jointleaf Rush, and more ambiguously as "Jointed Rush" which can also refer to J. kraussii from Australia . It is native to Eurasia and much of Canada and the United States. It grows in moist areas, such as wet sand, and thrives in calcareous soils. This is a perennial herb producing a mainly erect stem from a short rhizome. The stem may root at nodes, and it generally has one or more cylindrical leaves up to 10 centimeters long.

The inflorescence atop the stem has several branches with up to 25 clusters of up to 12 flowers each. Each individual flower has greenish to dark brown, pointed tepals 2 to 3 millimeters long, six stamens bearing anthers, and a protruding, feathery pistil. The fruit is a dark brown capsule with a pointed tip.

Horizontal internal joints may be seen or felt on the stem of the plant.

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