Juncus articulatus is a flowering plant species in the rush family Juncaceae. It is 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. J. articulatus was found to be more sensitive to drought and salt stress than its congeners J. acutus and J. maritimus. It is a perennial herb producing mainly erect stems from a short rhizome. The stem may root at nodes, and it generally has one or more cylindrical leaves up to 10 centimeters long.