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Montana Field Guide

Montana Field Guides

Baltic Rush - Juncus balticus
Other Names:  Juncus arcticus ssp. littoralis


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

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General Description
Strongly rhizomatous. Stems erect, terete, 15–90 cm, sometimes tufted. Leaves mainly basal; blades and auricles absent; sheaths light to dark brown. Inflorescence congested to open with sessile to pedicellate flowers; main bract terete, erect, appearing like a continuation of the stem. Flowers with prophylls; tepals brown to purple, 4–5 mm long, acuminate; stamens 6. Capsules 3–4 mm long, rounded to the beak; seeds apiculate (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Circumboreal south to S. America, absent from southeast U.S. (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 370

(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 mineral soil of meadows, low areas in grasslands, thickets, often along streams, ditches, tolerant of saline and alkaline conditions; plains, valleys to lower subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Baltic Rush — Juncus balticus.  Montana Field Guide.  .  Retrieved on , from