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Montana Field Guide

Montana Field Guides

Pineforest Needlegrass - Stipa pinetorum
Other Names:  Achnatherum pinetorum

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Status Under Review
Native Species

Global Rank: G4
State Rank: SU
C-value:


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Stems 10–30 cm. Leaves: blades 0.5–0.8 mm wide, essentially hairless at the throat; ligule <0.5 mm long. Inflorescence a contracted panicle 10–14 cm long. Spikelet 8–10 mm long. Lemmas with dense spreading long hairs, with an awn 15–20 mm long (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Collected in Gallatin County throughout most of western North America (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

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Relative Density

Recency

 

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



Habitat
Open to closed dry understory at middle elevations (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Stewardship Responsibility

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Pineforest Needlegrass — Stipa pinetorum.  Montana Field Guide.  .  Retrieved on , from