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Macoun Wildrye - x Elyhordeum macounii
Other Names:
Elymus macounii, x Agrohordeum macounii
General Description
Stems 20–60 cm. Leaves: blades 2–5 mm wide, flat to inrolled. Inflorescence 5–10 cm long, the erect rachis disarticulating at maturity. Spikelets 2 per node (sometimes evident by just 3 glumes at a node), 12–15 mm long; glumes narrow, 1- to 3-veined, tapering to a short to long awn. Lemmas 1 or 2 per spikelet, hairless, tapering to an awn 4–10 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Diagnostic Characteristics
A hybrid between Elymus trachycaulus and Hordeum jubatum.
Range Comments
Throughout most of northern and western North America and absent mostly from eastern U.S (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 18
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
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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