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Montana Field Guide

Montana Field Guides

Wild Oats - Avena fatua

Non-native Species

Global Rank: GNR
State Rank: SNA

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

External Links






 
General Description
Annual bunchgrass. Stems 50–100 cm. Leaves: blades 5–10 mm wide. Inflorescence an open panicle. Spikelets 20–25 mm long, usually with at least 3 florets. Lemmas hairless to most often long hairy, with a twisted bent blackish awn 3–4 cm long and a conspicuously hairy callus (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Non-native
 


Range Comments
Introduced throughout most of North America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 26

(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
In and around cultivated fields, roadsides, and pastures at low to moderate elevations (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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    • Bateman, H. 2017. Molecular effects of insect herbivory in multiple herbicide resistant Avena fatua. Abstract. Bozeman, MT: Montana State University.
    • 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.
    • Burns, E.E. 2017. Genetic and physiological characterization and ecological management of non-target site resistance in multiple herbicide resistant Avena fatua L. Ph.D. Dissertation. Bozeman, MT: Montana State University. 175 p.
    • Burns, E.E., B.K. Keith, L.E. Talbert, and W.E. Dyer. 2018. Non-target site resistance to flucarbazone, imazamethabenz and pinoxaden is controlled by three linked genes in Avena fatua. Weed Research 58, no. 1 (February 2018): 8-16. https://dx.doi.org/10.1111/wre.12279
    • Carroll, M.W. 1998. Influence of a legume covercrop on volunteer wheat, the wheat curl mite, Aceria tosichella (K.) and wheat streak mosaic virus. M.Sc. Thesis. Bozeman, MT: Montana State University. 78 p.
    • Davidson, R.M. 1997. Temporal and spatial dynamics of herbicide resistant weeds. Ph.D. Dissertation. Bozeman, MT: Montana State University. 137 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.
    • Zapatka, T.P. 1963. Some results of two limited hunting seasons on hen Pheasants in north central Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 26 p.
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Citation for data on this website:
Wild Oats — Avena fatua.  Montana Field Guide.  .  Retrieved on , from