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Montana Field Guide

Montana Field Guides

Two-flowered Rush - Juncus biglumis


Global Rank: G5
State Rank: S3S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 9

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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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 2

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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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Two-flowered Rush — Juncus biglumis.  Montana Field Guide.  .  Retrieved on , from