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Montana Field Guide

Montana Field Guides

Least Spikerush - Eleocharis acicularis


Global Rank: G5
State Rank: SNR

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

External Links






 
General Description
Slenderly rhizomatous perennial. Stems ascending to erect, 1–25 cm, tufted. Spikelet 2–7 mm long with 3 to 15 flowers. Scales purplish with a green midrib and hyaline margins, 1.5–2.5 mm long. Flowers: bristles 0 to 4, exceeding the achene; stigmas 3. Achenes grey, honeycombed, obovoid, ca. 1 mm long with a flattened, triangular tubercle (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 31

(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
Muddy shores or shallow water on margins of ponds, lakes, streams, ditches; 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:
Least Spikerush — Eleocharis acicularis.  Montana Field Guide.  .  Retrieved on , from