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Montana Field Guide

Montana Field Guides

Mountain Bentgrass - Agrostis humilis
Other Names:  Podagrostis humilis


Global Rank: G4Q
State Rank: S4
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






State Rank Reason (see State Rank above)
Numerous collections from the western 1/3 of the state. A wide-ranging (circumboreal) species. Subalpine and alpine habitat probably currently secure.
 
General Description
Perennial bunchgrass occasionally with short rhizomes. Stems 7–15(–50) cm. Leaves: blades mostly basal, 0.5–1 mm wide, ligules 0.5–4 mm long. Inflorescence a contracted panicle 1–3(–5) cm long. Spikelets 1.7–2 mm long. Lemmas 1.7–1.9 mm long, awnless to short-awned; palea about two-thirds as long as lemma (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 3

(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
Alpine and subalpine meadows, or dry mountain meadows at lower elevations (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:
Mountain Bentgrass — Agrostis humilis.  Montana Field Guide.  .  Retrieved on , from