Juncous a. : Full of rushes: resembling rushes; juncaceous.

Example:


Taxonomy
Junco, Junco hyemalis, distinct species, free encyclopedia, ground, genus, genus Juncus, shrub, rushes, Oregon, Dark-eyed Junco, factual verification, Adolphia, Animalia, Chordata, Aves, forage, subspecies.

Defination from the web:
Juncos, oreganus subspecies group - often considered distinct species ... Slate-colored Juncos, hyemalis subspecies group - sometimes considered distinct species. White-winged Junco, Junco hyemalis aikeni - sometimes considered distinct species ...