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Montana Field Guide

Montana Field Guides

Plains Muhly - Muhlenbergia cuspidata


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

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

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State Rank Reason (see State Rank above)
See rank details.
  • Details on Status Ranking and Review
    Plains Muhly (Muhlenbergia cuspidata) Conservation Status Review
    Review Date = 02/21/2013
    View State Conservation Rank Criteria
    Population Size

    Score0-1 - Moderate to Large: Population size is imprecisely known but is believed to be >10,000 individuals.

    Range Extent

    Score0 - Widespread species within Montana (occurs in 5% or more of the state or generally occurring in 6 or more sub-basins.) as well as outside of Montana.

    Area of Occupancy

    Score0 - High: Occurs in >25 Subwatersheds (6th Code HUC’s).

    Environmental Specificity

    Score0 - Low: Species is a generalist that occurs in a variety of habitats and/or is tolerant of disturbed or degraded habitats (C -Values of 1-4).

    Trends

    Score0-1 - Stable to Minor Declines:

    Threats

    Score0-1 - Low to Medium.

    Intrinsic Vulnerability

    Score0 - Low Vulnerability: Species does not have any unusual or specific life history or biological attributes or limted reproductive potential which makes it susceptible to extirpation from stochastic events or other adverse impacts to its habitat and thus slow to recover.

    Raw Conservation Status Score

    Score 0 to 3 total points scored out of a possible 19.

 
General Description
Perennial. Stems 20–40 cm long, the area below the stem node smooth and without small bumps, stem bases hard, scaly, and bulb-like. Leaves: blades mostly 2–3 mm wide, ligule about 1 mm long. Inflorescence a narrow panicle 5–12 cm long. Spikelets 2.5–3.5 mm long. Lemmas slightly hairy often towards the base only, awnless or awn-tipped, callus hairs very short or lacking (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout the eastern flanks of the Rocky Mountains from NM to AL and east through southcentral Canada and sporadically to the very eastern U.S (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 13

(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
Short grass prairie and occasionally sagebrush steppe on moderately disturbed settings including road cuts (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Plains Muhly — Muhlenbergia cuspidata.  Montana Field Guide.  .  Retrieved on , from