Avena fatua L.

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Synonyms:
Common names:
Frequency:
Status: Introduced
Description:
A weak annual. Culms 40-150 cm. tall, 3-5-noded, solitary, or in small tufts, simple, erect or ascending from a geniculate base, terete, smooth, usually glabrous. Leaf-sheaths striate, dorsally rounded, the inferior often pilose, smooth. Ligule up to 6 mm. long, membranous, obtuse. Leaf-laminae 10-50 x 0.3-1.6 cm., linear to lanceolate-linear, tapering to a fine point, expanded, vivid green, glabrous or rarely scattered pilose, scaberulous on both surfaces. Panicle 10-45 cm. long, up to 20 cm. in diameter, usually nodding, open and loose, pyramidal; branches usually clustered, rarely solitary (except the upper ones), spreading, filiform, loosely branched, scaberulous. Spikelets 18-30 mm. long, 2-3-flowered (with a reduced terminal floret), narrowly oblong to obtriangular-oblong in outline, gaping, pendulous. Glumes equal to slightly unequal, 7-11-nerved, somewhat cross-veined, lanceolate, with the apex acute. Lemmas 14-20 mm. long, 7-9-nerved, all awned, lanceolate or lanceolate-oblong, with the apex 2-4-dentate, stiffly pilose towards the base, scaberulous towards the apex, densely bearded at the insertion; awn up to 4.25 cm. long, inserted around the middle of the lemma, dark brown below, green or yellowish towards the apex. Palea densely ciliate along the keels. Anthers c. 3 mm. long. Caryopsis 6-8 mm. long, tightly enclosed between the hardened lemma and the palea.
Notes:
Derivation of specific name:
Habitat: Commonly found in arable land, waste places, gardens, along roads, and sometimes forest clearings
Altitude range: (metres)
Flowering time:
Worldwide distribution: As a weed all over the world
Zimbabwe distribution: C,E,S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Launert, E. (1971). Poaceae Flora Zambesiaca 10(1) Pages 74 - 75. (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 100.


Other sources of information about Avena fatua:

External websites:

African Plants: A Photo Guide (Senckenberg): Avena fatua
African Plant Database: Avena fatua
BHL (Biodiversity Heritage Library): Avena fatua
EOL (Encyclopedia of Life): Avena fatua
ePIC (electronic Plant Information Center): Avena fatua
Flora Zambesiaca web site: Avena fatua
GBIF (Global Biodiversity Information Facility): Avena fatua
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Avena fatua
iNaturalist: Avena fatua
IPNI (International Plant Names Index): Avena fatua
JSTOR Plant Science: Avena fatua
Kew Herbarium catalogue: Avena fatua
Kew Monocotyledon checklist: Avena fatua
Mansfeld World Database of Agricultural and Horticultural Crops: Avena fatua
Plants of the World Online: Avena fatua
Tropicos: Avena fatua
Wikipedia: Avena fatua


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-21

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2021). Flora of Zimbabwe: Species information: Avena fatua.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=103700, retrieved 10 May 2021

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