Prairie Wedgegrass - Sphenopholis obtusata
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
Widely scattered though usually not abundant.
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)
Throughout most of North America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
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)
- 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 Unpublished report to the U.S. Forest Service.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 Unpublished report to the Custer National Forest.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.
- Murphy, C.Y. 2016. Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer) vector to wheat streak mosaic virus. M.Sc. Thesis. Bozeman, MT: Montana State University. 75 p.