Slender rush grows in landscapes, crops, roadsides, and all types of fields.

Juncus tenuis, the slender rush, is a clump-forming, round-stemmed perennial in the Juncaceae (rush family).

In damp conditions Phragmites reeds and several species of Juncus are found abundantly including Jointed Rush, Soft Rush and Toad Rush, and less commonly the introduced species Slender Rush.

Juncus tenuis Willd.

The meadows are surrounded by conifers and meadow species may include Deschampsia cespitosa, Alopecurus pratensis, Phleum pratense, Poa palustris, Juncus tenuis, Juncus ensifolius, Carex vesicaria, Carex microptera, Agrostis idahoensis, Fragaria virginiana var.