Joint-Leaf Rush
Juncus articulatus L.

Juncus articulatus L., a member of the Juncaceae family, is a perennial herb native to regions including Eurasia, Canada, Greenland, and the United States. It is commonly known as Joint-Leaf Rush and is characterized by its erect stems and flattened, hollow cylindrical leaves. This species grows in moist environments such as wet sand and calcareous soils. It is more sensitive to drought and salt stress compared to related species like J. acutus and J. maritimus. The plant may root at nodes and exhibits transverse internal partitions in its leaves.
Description
Juncus articulatus L. is a flowering plant in the rush family Juncaceae. It is native to a wide range including the Azores, Madeira, and parts of the Americas and Eurasia. The plant is adapted to moist habitats and calcareous soils. It has a short rhizome and produces erect stems that may root at the nodes. The leaves are flattened and hollow, with internal joints that can be seen or felt. This species is distinguished by its sensitivity to drought and salt stress in comparison to similar species. Specimens in the LINN herbarium have been discussed in relation to type material, but no original material is present for this name.
Other common names
Joint-Leaf RushJointed RushJointleaf Rush
Distribution
Corvo Island · Santa Maria Island · São Jorge Island · São Miguel Island · Terceira Island · Madeira Island · Afrotropical · Nearctic · Oriental (Indomalaya) · Palaearctic · DK · FI · IS · NO · SE · Flanders · Azores · Finland · Vermont-US · AU · NZ · FK · Tristan da Cunha · Global · JP · Belgium · Brussels-Capital Region · Flemish Region · Walloon Region · Afghanistan
Synonyms
Juncus lampocarpusJuncus lampocarpus var. erectusJuncus lampocarpus var. fluitansJuncus tricephalosJuncus articulatus var. articulatusJuncus alpinoarticulatus subsp. arthrophyllusJuncus subarticulatusJuncus arthrophyllus
