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[[File:Map Avena sativa.gif|thumb|distribution in Africa (planted)]][[File:Linedrawing Avena sativa.gif|thumb|1, part of stem with leaf; 2, inflorescence. Redrawn and adapted by Iskak Syamsudin]][[File:Avena sativa GeAs1.jpg|thumb|flowering plants]][[File:Avena sativa 01 Ecoport D. Lange.jpg|thumb|field]][[File:Avena sativa GeAs3.jpg|thumb|crop at grain-filling stage]][[File:Avena sativa GeAs4.jpg|thumb|panicles]][[File:Avena sativa 01 Ecoport A.Mondadori.jpg|thumb|detail of flowers]]
<big>''[[Avena sativa]]'' L.</big>
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{{DISPLAYTITLE:''Avena sativa'' (PROTA)}}
:Protologue: Sp. pl. 1: 79 (1753).
:Chromosome number: 2''n'' = 42
== Vernacular names ==
*Oat, oats, common oat (En). *Avoine, avoine cultivée (Fr). *Aveia, aveia-amarela (Po).
== Origin and geographic distribution ==
== Description ==
*Erect annual grass up to 2 m tall, with a fibrous root system; stems (culms) solitary or tufted, smooth or scabrous beneath the inflorescence. *Leaves alternate, simple; leaf sheath long and loose, rounded on the back; ligule blunt, membranous, 3–5 mm long; blade linear, flat, 10–45 cm × 0.3–1.5(–2) cm. *Inflorescence a terminal panicle 15–30(–40) cm long, loose and open or contracted. *Spikelet slender-stalked, pendulous, 1.5–3.5 cm long, usually 2–3-flowered, with the uppermost florets reduced, non-shattering; glumes almost equal, narrowly elliptical-oblong, sharply acute, several-veined; lemma 1–2.5 cm long, more or less truncate or minutely 2– 4-toothed, awn present or absent, glabrous or sparsely hairy around the awn insertion; palea slightly shorter than lemma; stamens 3; ovary superior, villous, with 2 laterally exserted stigmas. *Fruit a caryopsis (grain), 0.5–1 cm long, narrow, with nearly parallel sides, hairy, grooved lengthwise on the face, tightly enclosed by lemma and palea.
== Other botanical information ==
== Author(s) ==
* G. Assefa , Ethiopian Agricultural Research Organization, Holetta Research Center, P.O. Box 2003, Addis Ababa, Ethiopia
== Correct citation of this article ==
Assefa, G., 2006. '''Avena sativa''' L. [Internet] Record from PROTA4U. In: Brink, M. & Belay, G. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, Netherlands. <http://www.prota4u.org/search.asp>. Accessed {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}.
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[[Category:PROTA prov]][[Category:Cereals and pulses (PROTA)]]
