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Montana Field Guide

Montana Field Guides

Torrey's Rush - Juncus torreyi


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

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General Description
Rhizomatous. Stems erect, terete, 15–60 cm from tuberous-thickened rhizomes. Leaves basal and cauline; blades terete, septate, 1–3 mm wide; auricles rounded, 1–2 mm long. Inflorescence of 1 to 10 heads each with 25 to 100 sessile flowers, 10–15 mm across; some heads clustered; main bract terete, ascending, greater than the inflorescence. Flowers: prophylls absent; tepals green to tan, 3–4 mm long, long-acuminate; inner shorter; stamens 6. Capsules 4–6 mm long, long-tapered to the beak; seeds apiculate (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout most of temperate N. America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 14

(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 meadows, margins of streams, ditches, ponds, often where saline or alkaline; plains, valleys, rarely higher (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Torrey's Rush — Juncus torreyi.  Montana Field Guide.  .  Retrieved on , from