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Montana Field Guide

Montana Field Guides

Ovate Spikerush - Eleocharis ovata
Other Names:  Eleocharis obtusa var. ovata


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

External Links






 
General Description
Fibrous-rooted annual. Stems ascending to erect, 4–20 cm, tufted. Spikelet 4–10 mm long with numerous flowers. Scales brown with hyaline margins and a lighter midrib, 2–2.5 mm long. Flowers: bristles 0 to 7, equaling or exceeding the achene; stigmas usually 2. Achenes grey to brown, smooth, obovate, lenticular, ca. 1.5 mm long with a broad, low tubercle 0.1–0.2 mm high (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Circumboreal south to AZ, OK, TN and VA (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 1

(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 shallowly submersed soil on the margins of ponds, lakes, sloughs; valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Ovate Spikerush — Eleocharis ovata.  Montana Field Guide.  .  Retrieved on , from