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Common Wild Oat

Scientific Name
Avena fatua
Scientific Author
Linnaeus, C (1753)
Taxonomy
(Magnoliophyta: Liliopsida: Cyperales: Poaceae)
Reliability
High
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Diagnostic Images

Floret lateral
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Caption
Seed Project
Source
Clare McLellan Museum Victoria
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Diagnostic Images (5)
Diagnostic Notes
Pictured: Floret(s)

Description:

Floret Colour: Variable - brown/yellow

Floret Length: 7 - 10mm

Floret Sculpture: Carinate, Divided with medium groove ending with short bristles.

Floret Shape: Lanceolate (Lance shaped)

General information:

Robust annuals to 1.6 m high; juvenile growth prostrate to erect.

Leaves with ligule obtuse to acute, 3–8 mm long.

Panicle loose, pyramidal, to 40 cm long; blade 5–15 mm wide, scabridulous, ciliolate at base. Spikelets very open, 15–25 mm long without the awns, each with 2 or 3 florets. Glumes acute, subequal, 7–11-nerved, 18–30 mm long, all florets disarticulating at maturity.

Florets fertile lemma lanceolate; 14–20 mm long; coriaceous; much thinner above; dark brown; without keel; 7–9 -veined. Lemma surface pilose; hairy below. Lemma apex dentate; 2–4 -fid; with irregular lobes; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 25–40 mm long overall; with twisted column. Palea keels ciliate

Source: See web links

KEW Royal Botanic Gardens

PlantNET - FloraOnline

More Information
Author
Clare McLellan
Created
20/09/2011 04:32 AEST
Last Updated
16/01/2013 11:10 AEST
Citation
Clare McLellan (2011) Common Wild Oat (Avena fatua ) Updated on 1/16/2013 11:10:08 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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