The Collaborative International Dictionary
Juncus effusus
Bulrush \Bul"rush`\ (b[.u]l"r[u^]sh`), n. [OE. bulrysche, bolroysche; of uncertain origin, perh. fr. bole stem + rush.] (Bot.) A kind of large rush, growing in wet land or in water.
Note: The name bulrush is applied in England especially to the cat-tail ( Typha latifolia and Typha angustifolia) and to the lake club-rush ( Scirpus lacustris); in America, to the Juncus effusus, and also to species of Scirpus or club-rush. [1913 Webster] ||
Wikipedia
Juncus effusus
"Common Rush" and "Soft Rush" redirect here. Another 'soft rush' species in North America is Juncus interior (interior rush).
Juncus effusus, with the common names Soft rush or common rush, is a perennial, herbaceous flowering plant species in the family Juncaceae.