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Montana Field Guide

Montana Field Guides

Toad Rush - Juncus bufonius


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

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General Description
Fibrous-rooted annual. Stems ascending to erect, terete, 2–15 cm, branched at the base. Leaves basal and cauline; blades channeled, <1 mm wide; auricles absent. Inflorescence open with ascending branches and clusters of 1 to 3 sessile flowers in axils of upper leaves (nodal bracts). Flowers with prophylls; tepals narrow, green with scarious margins, 4–7 mm long; outer acuminate; inner acute, shorter; stamens 6. Capsules 3–4 mm long, rounded at the tip; seeds apiculate (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 19

(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
Vernally moist, often disturbed soil of meadows, stream banks, margins of ponds, wetlands; plains, valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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