Juncus arcticus

Juncus arcticus, called the arctic rush, is a species of flowering plant in the family Juncaceae, native to the subarctic and subalpine northern hemisphere. It is typically found in wetland and riparian habitats.

Subtaxa
The following subspecies are currently accepted:
 * Juncus arcticus subsp. alaskanus Hultén – Alaska, northwest Canada
 * Juncus arcticus subsp. arcticus
 * Juncus arcticus subsp. grubovii (Novikov) Novikov, Kirschner & Snogerup – Mongolia, Tuva, Yakutia