[1][4][5][6][7] [8] It is also widely distributed as an introduced species in suitable habitats worldwide.

It grows in moist and muddy places, often in wetlands and riparian areas.

The relationship of North America plants to the Eurasian Juncus ranarius is weakly delineated.

[3] Juncus bufonius is an annual monocot that is quite variable in appearance.

It is generally a green clumping grasslike rush, with many thin stems wrapped with few threadlike leaves.