Editing Avena (section)

===Wild oats===
Several species of ''Avena'' occur in the wild, sometimes as weeds in agricultural fields. They are known as '''wild oats''' or '''oat-grasses'''. Those growing alongside cultivated oats in agricultural fields are considered nuisance [[weed]]s, as, being grasses like the crop, they are difficult to remove chemically; any standard [[herbicide]] that would kill them would also damage the crop. A specific herbicide must be used. The costs of this herbicide and the length of time it must be used to reduce the weed are significant, with seeds able to lie dormant for up to 10 years.<ref name=z/><ref>[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=103247 Flora of China Vol. 22 Page 323 <big>燕麦属</big> yan mai shu ''Avena'' Linnaeus, Sp. Pl. 1: 79. 1753. ]</ref><ref>[http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=103247 Flora of Pakistan, ''Avena'' Linn.]</ref><ref>[http://luirig.altervista.org/flora/taxa/floraspecie.php?genere=avena Altervista Flora Italiana, genere ''Avena''] {{webarchive |url=https://web.archive.org/web/20150201021857/http://luirig.altervista.org/flora/taxa/floraspecie.php?genere=avena |date=February 1, 2015 }} includes photos and distribution maps for several species</ref><ref>Pohl, R. W. 1994. 38. Avena L. 6: 232. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México, D.F.</ref>
* ''[[Avena aemulans]]'' – European Russia
* ''[[Avena barbata]]'' – slender wild oat – from Portugal + Morocco to Tajikistan
* ''[[Avena brevis]]'' – short oat – central + southern Europe
* ''[[Avena chinensis]]'' – Germany, Austria; introduced in China, Belarus
* ''[[Avena clauda]]'' – Balkans, Middle East, Central Asia
* ''[[Avena eriantha]]'' – North Africa, Middle East, Central Asia, Caucasus
* ''[[Avena fatua]]'' – common wild oat – Europe, Asia, North Africa; naturalized in Australia, the Americas, various islands
* ''[[Avena longiglumis]]'' – North Africa, Israel, Spain, Portugal, Sardinia
* ''[[Avena maroccana]]'' – Moroccan oat – Morocco
* ''[[Avena murphyi]]'' – Morocco, Spain
* ''[[Avena prostrata]]'' – Morocco, Spain
* ''[[Avena saxatilis]]'' – Sicily and small nearby islands
* ''[[Avena sterilis]]'' – winter wild oat – Mediterranean, East Africa; temperate Asia; introduced in northern Europe, Australia, New Zealand, the Americas 
* ''[[Avena strigosa]]'' – Spain, France, Portugal; introduced in other parts of Europe as well as in scattered locations in Australia, New Zealand, the Americas
* ''[[Avena vaviloviana]]'' – Eritrea, Ethiopia
* ''[[Avena ventricosa]]'' – North Africa, Middle East
* ''[[Avena volgensis]]'' – European Russia