Avena fatua L.:
Austria (Europe)
Afghanistan (Asia)
Argentina (South America)
Bolivia (South America)
Canada (North America)
Chile (South America)
Brazil (South America)
Australia (Oceania)
Bhutan (Asia)
Mexico (Mesoamerica)
Guatemala (Mesoamerica)
Peru (South America)
Honduras (Mesoamerica)
Ecuador (South America)
India (Asia)
Pakistan (Asia)
New Zealand (Oceania)
Ethiopia (Africa & Madagascar)
Nepal (Asia)
Kyrgyzstan (Asia)
Kazakhstan (Asia)
Russian Federation (Asia)
Tajikistan (Asia)
United States (North America)
South Africa (Africa & Madagascar)
Uruguay (South America)
Caribbean (Caribbean)
Venezuela (South America)
Bulgaria (Europe)
China (Asia)
Uzbekistan (Asia)
Turkmenistan (Asia)

Avena fatua var. pilosa Syme:
India (Asia)

Avena intermedia T. Lestib.:
Belgium (Europe)

Avena fatua var. mollis Keng:
China (Asia)

Avena fatua var. intermedia E. Morren:
Portugal (Europe)

Avena meridionalis (Malzev) Roshev.:
India (Asia)
China (Asia)
Russian Federation (Asia)
Afghanistan (Asia)

Avena fatua var. vilis (Wallr.) Hausskn.:
Argentina (South America)

Avena ludoviciana var. glabrescens Durieu ex Gren. & Godr.:
Argentina (South America)
Uruguay (South America)

Avena sativa var. pilosa (Koeler) Tab. Morais:
Argentina (South America)

Avena fatua var. intermedia (T. Lestib.) Lej. ex Courtois:
Argentina (South America)

Avena fatua var. pilosissima Gray:
Argentina (South America)

Avena fatua var. glabrata Peterm.:
Argentina (South America)
Bulgaria (Europe)
Uruguay (South America)
India (Asia)

Canada

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Native to Europe and Western Asia, widely spread in all Eastern Asia.

Annuals, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems with inflorescence 1-2 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades 1-2 cm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligul e present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence lax, widely spreading, branches drooping, pendulous, Inflorescence branches more than 10 to numerous, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet 3-10 mm wide, Spikelet less than 3 mm wide, Spikelets with 3-7 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Rachilla or pedicel hairy, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Lemma similar in texture to glumes, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma 5-7 nerved, Lemma 8-15 ner ved, Lemma body or surface hairy, Lemma apex dentate, 2-fid, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn 2-4 cm long or longer, Lemma awn subapical or dorsal, Lemma awn twisted, spirally coiled at base, like a corkscrew, Lemma awn once geniculate, bent once, Lemma margins thin, lying flat, Lemma margins inrolled, tightly covering palea and caryopsis, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Lemma surface pilose, setose or bristly, Palea present, well developed, Palea membranous, hyaline, Palea shorter than lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear, Caryopsis hairy all over.

Annual; culms 30-150 cm high, erect or geniculately ascending, stout, simple. Leaf-blades 10-45 cm long, 3-15 mm wide, glabrous, rough; ligules up to 6 mm long. Panicle nodding (sometimes subsecund), narrowly to broadly pyramidal, 10-40 cm long and up to 20 cm wide, loose with rough spreading branches. Spikelets pendulous, 18-30 mm long, 2-3-flowered, the rhachilla articulated beneath each floret; glumes lanceolate, finely acute; lemmas 12-25 mm long, densely bearded around the callus with hairs up to 4 mm long, stiffly hairy (or completely glabrous) and finally brown in the lower two-thirds, green and rough above, unequally and shortly 2-4-toothed at the apex; awn 2.5-4 cm long, geniculate, the column dark brown.

This is a noxious weed, especially in fields of wheat and cultivated oats, native to Europe and C and SW Asia, but now spread throughout temperate regions of the world.

Annual. Culms erect or geniculate at base, 50–150 cm tall, unbranched, 2–4-noded. Leaf sheaths glabrous or basal sheaths puberulous; leaf blades 10–30 cm, 4–12 mm wide, scabrid or adaxial surface and margins pilose; ligule 1–5 mm. Panicle narrowly to broadly pyramidal, 10–40 cm, nodding; branches scabrid. Spikelets 1.7–2.5 cm, florets 2 or 3, all florets awned; rachilla easily disarticulating below each floret at maturity, each floret with a bearded callus, internodes hirsute or glabrous; glumes lanceolate, subequal, herbaceous, 9–11-veined, apex finely acute; callus hairs up to 4 mm; lemmas 1.5–2 cm, leathery, glabrous to densely hispid in lower half, green and scaberulous above, awned from near middle, apex shortly 2–4-toothed; awn 2–4 cm, geniculate, column twisted, blackish brown. Fl. and fr. Apr–Sep. 2n = 42.

Culms 30-60 cm tall. Blades linear, 10-15 cm long by 5-15 mm wide; ligule chartceous, tongue-shaped, minutely hispid on backside, 2.5 mm long. Panicle open, compound, about 10-30 cm long. Spikelets nodding, with more than 2 florets, falling off when mature, 1.4-3 cm long; glumes chartaceous, nearly equal, rounded on the backside; the lower 11-nerved, sometimes connected with tessellate nerves; the upper 9-nerved, aute; lemma densely bearded on backside, with a long geniculated awn arising from the backside; palea flattened, 2-keeled, margins ciliate. Caryopsis hairy; hilum linear.

Type fragment for Anelytrum avenaceum Hack.
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): -. Connevo
Year Collected: 1904
Locality: Prope Genoa., Liguria, Italy, Europe

Weed of cultivated fields, grassy mountain slopes, roadsides and other disturbed places; below 4300 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Nei Mongol, Ningxia, Qinghai, Shaanxi, Sichuan, Taiwan, Xinjiang, Xizang, Yunnan, Zhejiang [Afghanistan, Bhutan, India (Sikkim), Kazakhstan, Kyrgyzstan, Nepal, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan; N Africa, SW Asia, Europe].

In Great Britain and/or Ireland:
Foodplant / parasite
Blumeria graminis parasitises live Avena fatua

Foodplant / parasite
amphigenous, scattered or in patches uredium of Puccinia coronata parasitises live leaf of Avena fatua
Remarks: season: summer

Foodplant / parasite
amphigenous uredium of Puccinia graminis f.sp. avenae parasitises live leaf of Avena fatua

Collection Sites: world map showing specimen collection locations for Avena fatua

Barcode of Life Data Systems (BOLD) Stats
                                                             

Specimen Records:	15
Specimens with Sequences:	28
Specimens with Barcodes:	16
Public Records:	12
Species:	1
Species With Barcodes:	1

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 15
Species: 23
Species With Barcodes: 1

Canada

Rounded National Status Rank: NNA - Not Applicable

United States

Rounded National Status Rank: NNA - Not Applicable

Rounded Global Status Rank: GNR - Not Yet Ranked