Avena fatua
Wild oats, Flaxgrass, Wheat oats, Oatgrass Taxonomy
Synonyms: Subspecific taxa: Classification: Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI Images
   
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Species Distribution
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County Map Legend
Absent: Not known from county Medium confidence: Medium or unknown confidence; often old records or unverifiable observations Medium-high confidence: Often observations by expert botanists High confidence: Often vouchered herbarium records Planted / introduced: Native species introduced outside historic range, or only in planted locations within county (e.g., restorations) Historic / extirpated: Only historic records for the species; likely extirpated (Note that this category is not yet functional) North American distribution maps for this species: FLNA;  USDA Plants;  BONAP;  BISON
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Species Status
Status/Listing: No Information Notes: Origin: Europe
Species Description
General: Monocot, annual Roots: adventitious, fibrous Shoots: alternate leaf arrangment; simple leaf type; entire leaf margin; Parallel leaf venation; awl-shaped leaf shape Inflorescence: panicle Flowers: perfect; 3 merous; complete; hypogynous ovary position Fruit: grain Physiology: autotrophic; C3 C02 fixation Reproduction: sexual
Ecology & Natural History
Habitat: Species is distributed on waste ground, especially along railroad ballast; small grains and flax fields. ILPIN Notes: Species is found in 3+ counties in extreme northeast Illinois. On Pacific coast, species is regarded as an important cause of hayfever. Grain is used by Native Americans as food in western U.S. Species is much rarer than Avena sativa; apparently it doesn't establish itself well. Spikelets are 3-flowered; lemmas pubescent, with a bent awn. Pammel, L.H. 1911. A Manual of Poisonous Plants. Torch Press. Cedar Rapids, Iowa. 977 pp. Stephens, H.A. 1980. Poisonous Plants of the Central United States. Regent Press of Kansas. Lawrence, KA. 165 pp. In western states, species may be a "noxious" weed; may not be an economic weed in our area. Functional Relationships:
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