(n)tall rush with soft erect or arching stems found in Eurasia, Australia, New Zealand, and common in North America, Syn.common rush, bullrush, soft rush, Juncus effusus
n. The type genus of the Juncaceae, comprising the rushes; they are perennial tufted glabrous marsh plants of temperate regions. Syn. -- genus Juncus. [ WordNet 1.5 ]