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Montana Field Guides

Russian Wildrye - Elymus junceus
Other Names:  Psathyrostachys juncea

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 1

Agency Status


External Links

General Description
Bunchgrass. Stems few to many-bunched, 50–100 cm. Leaves: blades 2–7 mm wide, flat to inrolled. Inflorescence erect, 6–12 cm long; the inflorescence rachis disarticulating at maturity. Spikelets 2 or 3 per node, 8–11 mm long; glumes gradually tapering from the base to a very narrow pointed tip, 1-veined. Lemmas 2 or 3 per spikelet, distinctly short-hairy, tapering to an awn-tip or awn that is <4 mm long (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions


Range Comments
Introduced throughout many of the central states and provinces, as well as OR and AK (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: 30

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



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

Introduced for forage and reclamation, sometimes escaping, possibly not long persisting (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).


  • 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?
    • Blunt, K.R. 2001. Seasonal forage dry matter production and quality of 29 dryland grasses in Montana. M.Sc. Thesis. Bozeman MT: Montana State University. 174 p.
    • Boggs, K. W. 1984. Succession in riparian communities of the lower Yellowstone River, Montana. M.S. Thesis. Montana State University, Bozeman, 107 pp.
    • Johnson, J.D. 2004. Restoring native species to crested wheatgrass dominated rangelands. M.Sc.Thesis. Bozeman, MT: Montana State University. 58 p.
    • King, L.A. 1980. Effects of topsoiling and other reclamation practices on nonseeded species establishment on surface mined land at Colstrip, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 129 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.
    • Sater, S. 2022. The insects of Sevenmile Creek, a pictorial guide to their diversity and ecology. Undergraduate Thesis. Helena, MT: Carroll College. 242 p.
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Citation for data on this website:
Russian Wildrye — Elymus junceus.  Montana Field Guide.  .  Retrieved on , from