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Montana Field Guide

Montana Field Guides

Creeping Spikerush - Eleocharis palustris
Other Names:  Eleocharis erythopoda, Eleocharis macrostachya, Eleocharis xyridiformis


Global Rank: G5
State Rank: S5

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

External Links






 
General Description
Rhizomatous perennial. Stems erect with purple bases, 7–90 cm solitary or few together. Spikelet 5–25 mm long with numerous flowers. Scales brown to purple with a green or tan midrib, 2.5–4 mm long, the lowest 1 or 2 empty, bract-like. Flowers: bristles 4 to 6, exceeding the achene; stigmas 2. Achenes yellow to brown, smooth, obovate, lenticular, 2–3 mm long including the short-stemmed triangular tubercle 0.5–1 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Circumboreal south through U.S. and Mexico (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 131

(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 wet to shallow water of wet meadows, margins of lakes, ponds, marshes, fens; 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:
Creeping Spikerush — Eleocharis palustris.  Montana Field Guide.  .  Retrieved on , from