Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Three-stamened Rush - Juncus ensifolius
Other Names:  [including] Juncus tracyi, [including] Juncus saximontanus


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






 
General Description
Rhizomatous. Stems erect, terete, 10–60 cm. Leaves basal and cauline; blades equitant (folded flat in half longitudinally), 1–5 mm wide; auricles absent. Inflorescence of capitate clusters, 3–12 mm across, each with 3 to many sessile flowers; main bract smaller than the inflorescence. Flowers: prophylls absent; tepals tan, black, or purplish, 3–4 mm long, acuminate; stamens 3 or 6. Capsules rounded on top, 3–4 mm long; seeds apiculate or with a short appendage (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
AK to QC south to CA, AZ, NM, TX and Mexico (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 42

(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
Moist to wet soil around seeps, ponds, lakes, along streams, ditches, plains, valleys to subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
Login Logout
Citation for data on this website:
Three-stamened Rush — Juncus ensifolius.  Montana Field Guide.  .  Retrieved on , from