Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Two-flowered Rush - Juncus biglumis

Native Species

Global Rank: G5
State Rank: S3S4
C-value: 9


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Fibrous-rooted perennial forming small tufts. Stems erect, 2–10 cm. Leaves basal; blades channeled, 0.5–1.5 mm wide; auricles absent. Inflorescence a small head with 1 to 3 sessile flowers; main bract brown, greater than the inflorescence. Flowers: prophylls absent; tepals dark brown, 2–3 mm long, acute; stamens 6. Capsules 3–4 mm long, indented on top; seeds with a small appendage (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
Circumpolar south to CO (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 7

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Wet, cold, shallow soil of alpine seeps, rock ledges, along streams; alpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).


References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
    • Williams, K.L. 2012. Classification of the grasslands, shrublands, woodlands, forests and alpine vegetation associations of the Custer National Forest portion of the Beartooth Mountains in southcentral Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 376 p.
  • Web Search Engines for Articles on "Two-flowered Rush"
Login Logout
Citation for data on this website:
Two-flowered Rush — Juncus biglumis.  Montana Field Guide.  .  Retrieved on , from