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Montana Field Guide

Montana Field Guides

Slender Wheatgrass - Elymus trachycaulus
Other Names:  Agropyron caninum, Agropyron trachycaulum, Elymus violaceus, Agropyron latiglume, Elymus alaskanus ssp. latiglumis, Agropyron subsecundum


Global Rank: G5
State Rank: S4S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

External Links






 
General Description
Bunchgrass. Stems erect to sometimes decumbent, 3–10 dm. Leaf blades 3–8 mm wide, flat to rolled, ascending, leaf sheath and collar often hairless. Inflorescence 5–20 cm long, rachis continuous, the internodes <10 mm long. Spikelets (9–)12–18 mm long, appressed to the main rachis, florets mostly 3 to 7 per spikelet, glumes often nearly as long or longer than florets, glumes awn-tipped to long awned. Lemmas awn-tipped or sometimes with a straight awn up to 20 mm long (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 171

(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
Open dry sites at lower elevations to the subalpine but ecologically confined to disturbance-prone settings (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:
Slender Wheatgrass — Elymus trachycaulus.  Montana Field Guide.  .  Retrieved on , from