Avena sativa* L. Sp. Pl.
2001) : Subfamily Pooideae. Tribe Poeae.
Type of Basionym or
Protologue Information: LT: Herb. Clifford. 25, Avena 1, (BM). LT
designated by Baum, Taxon 23: 579–583 (1974).
(books and floras):  C.A.Gardner, Flora of Western Australia 1
Gramineae (37),  M.Lazarides in J.Jessop (ed)., Flora of
Central Australia (434),  D.Sharp & B.K.Simon, AusGrass,
Grasses of Australia,  J.Jessop, G.R.M.Dashorst, F.M.James, Grasses
of South Australia (208),  S.W.L.Jacobs, R.D.B.Walley &
D.J.B.Wheeler, Grasses of New South Wales (163),  A.Wilson (ed.). Flora
of Australia, Vol 44A. Poaceae 2 (123).
 J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (208, Fig. 155),  S.W.L.Jacobs, R.D.B.Whalley
& D.J.B.Wheeler, Grasses of New South Wales, 4th edn (163).
Culms erect, 25–125(–180) cm tall. Leaves cauline. Ligule an eciliate membrane,
3–6 mm long, abaxially glabrous or abaxially hairy. Leaf-blades 8–45 cm long,
3–14(–25) mm wide. Leaf-blade surface scaberulous.
Inflorescence compound, a panicle. Panicle pyramidal, effuse, 6–40 cm long,
5–15 cm wide.
Spikelets pedicelled. Fertile spikelets 1 or more flowered, with 1 fertile
floret ((1-)2–3), comprising (1–)2–3 fertile floret(s), with a barren rachilla
extension, cuneate, laterally compressed, 18–32 mm long.
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, (7–)8–11 -nerved. Upper glume lanceolate, 22–32 mm long,
membranous, without keels, (7–)10–12 -nerved.
Fertile lemma 15–23 mm long, without keel, 7–9 -nerved. Lemma surface glabrous.
Lemma apex dentate, muticous or awned, 0–1 -awned. Median (principal) awn
dorsal, 15–40 mm long overall, with a twisted column. Palea apex dentate or
lobed. Anthers 3.
Distribution: Europe, Africa, Temperate Asia, Tropical Asia, Australasia,
Pacific, North America, South America, and Antarctica.
Distribution: Western Australia, South Australia, Queensland, New South
Wales, Victoria, Tasmania, Lord Howe.
Drummond, Dale, Menzies, Avon. South Australia: North-western, Lake
Eyre, Nullabor, Gairdner-Torrens Basin, Flinders Ranges, Eyre Peninsula,
Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island,
South-eastern. Queensland: Burnett, Moreton, Port Curtis, Warrego. New
South Wales: Central Coast, Northern Tablelands, Central Tablelands,
Central-Western Slopes, South-Western Slopes. Victoria: East Gippsland,
Eastern Highlands, Gippsland Highlands, Gippsland Plain, Grampians, Lowan
Mallee, Midlands, Murray Mallee, Otway Plain, Otway Range, Wilsons Promontory,
Riverina, Snowfields, Volcanic Plain, Wannon, Wimmera. Tasmania: No
Widely cultivated in temperate regions as a cereal crop or for forage.
All states and territories except the N.T., also on Lord Howe Is. Native of
Europe. Common on roadsides as an escape from cultivation. Flowers Sept.-May.