Avena fatua L.
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Details
Nomenclature
L.
L.
1753
ICN
Avena fatua L.
species
Avena fatua
Classification
Vernacular names
Descriptions
Avena fatua L.
Tall, green or light green tufts to 1.5 m, robust, or sometimes with rather slender culms. Leaf-sheath slightly hairy, upper sheaths glabrous. Ligule 2-7 mm, truncate to oblong and obtuse, denticulate, abaxially scabrid. Leaf-blade 15-50 cm × 4-15 mm, scabrid on ribs and margins, often with scattered hairs, especially on margins. Culm erect or occasionally geniculate at base, internodes glabrous. Panicle (15)-20-38 cm, lax, equilateral, ± nodding; branches widely spreading, slender, drooping, scabrid. Spikelets 35-50 mm, 2-3-flowered, pendulous on fine unequal pedicels; disarticulation below each floret at maturity. Glumes 9-11-nerved. Lemma 15-17.5 mm, narrow-lanceolate, light brown at first becoming tough and darker brown at maturity, stiffly hairy below level of awn insertion, or sometimes glabrous, scabrid on nerves above, narrowed to bidentate scarious apex; awn 30-40 mm, geniculate, stout, column dark brown, twisted. Palea keels with one row of cilia, interkeel scabrid. Callus with horse-shoe shaped scar densely bordered by long hairs. Anthers 2.5-3.5-(4) mm. Caryopsis 6-8 × 1.8-2.2 mm, light grey, densely hairy.
Taxonomic concepts
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Metadata
3c24b586-958d-4882-82a5-bd2589989737
scientific name
Names_Plants
1 January 2000