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Montana Field Guide

Montana Field Guides

Prairie Wedgegrass - Sphenopholis obtusata


Global Rank: G5
State Rank: S4
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 7

External Links






State Rank Reason (see State Rank above)
Widely scattered though usually not abundant.
 
General Description
Stems 30–100 cm. Leaves: blades flat, 2–6 mm wide. Inflorescence an erect, dense, panicle with spicate branches, 7–20 cm long. Spikelets 2.5–3.5 mm long; second glume broadest right near the tip. Lemmas 2–3 mm long (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 12

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Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Wet to dry site inhabiting but usually where water is at least intermittently abundant (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Additional ReferencesLegend:   View Online Publication
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    • Heidel, B.L. and H. Marriott. 1996. Sensitive plant species survey of the Ashland District, Custer National Forest, Powder River and Rosebud Counties, Montana. Unpublished report to the U.S. Forest Service. Montana Natural Heritage Program, Helena, Montana. 94 pp. plus appendices.
    • Heidel, B.L. and K.H. Dueholm. 1995. Sensitive plant survey in the Sioux District, Custer National Forest, 1994, Carter County, Montana and Harding County, South Dakota. Unpublished report to the Custer National Forest. Montana Natural Heritage Program, Helena, Montana. 95 pp. plus appendices.
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Prairie Wedgegrass — Sphenopholis obtusata.  Montana Field Guide.  .  Retrieved on , from