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Montana Field Guides

Jointed Goatgrass - Aegilops cylindrica
Other Names:  Triticum cylindricum

Non-native Species

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

External Links






 
General Description
Cool season, annual bunchgrass. Stems 25–50 cm. Leaves: blades 2–5 mm wide, flat and lax; sheaths with overlapping margins; ligule membranous. Inflorescence a 2-sided but cylindrical spike 5–15 cm long. Spikelets 8–14 mm long, one per node, partially to completely embedded within the rachis, usually comprising several florets; glumes broad and asymmetrical, usually awned by extension of the eccentric midrib, especially on the distal-most spikelets. Lemmas similar to glumes, awnless to awned especially on the distal-most spikelets; palea well developed. Disarticulation below the glumes; unit of dispersal the spikelet and internode of the adjacent inflorescence rachis (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced throughout the U.S. except in the southeast (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 23

(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
Disturbed settings including in and around crop fields where wheat is commonly cultivated (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Management

References
  • Additional ReferencesLegend:   View Online Publication
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    • Brey, C.W. 1998. Epidemiology of wheat curl mite (Aceria tosichella K.) and wheat streak mosaic virus on feral grass species and effect of glyphosate on wheat curl mite dispersal. Ph.D. Dissertation. Bozeman, MT: Montana State University. 136 p.
    • Fritzen, D.E. 1995. Ecology and behavior of Mule Deer on the Rosebud Coal Mine, Montana. Ph.D. Dissertation. Bozeman, MT: Montana State University. 143 p.
    • Ito, D. 2011. Evaluation of susceptibility to wheat streak mosaic virus among small grains and alternative hosts in the great plains. M.Sc. Thesis. Bozeman, MT: Montana State University. 93 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 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.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
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Citation for data on this website:
Jointed Goatgrass — Aegilops cylindrica.  Montana Field Guide.  .  Retrieved on , from