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This species is accepted, and its native range is a cultigen from Europe.

[GB]
Morphology General Habit
Annual. Culms erect; 45-90 cm long. Culm-internodes distally pruinose. Leaves cauline. Ligule an eciliate membrane; 2-4 mm long. Leaf-blades 10-20 cm long; 3-7 mm wide. Leaf-blade surface scaberulous; rough on both sides. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; linear, or lanceolate; 15-25 cm long. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-4 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 20-25 mm long; persistent on plant. Floret callus glabrous.
Fertile
Spikelets comprising 2-4 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 20-25 mm long; persistent on plant. Floret callus glabrous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 20-30(-35) mm long; 1 length of upper glume; membranous; without keels; 7-9 -veined. Lower glume apex acuminate. Upper glume lanceolate; 15-20 mm long; 0.8-1 length of adjacent fertile lemma; membranous; without keels; 7-9 -veined. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 15-20 mm long; coriaceous; much thinner above; without keel; 7-9 -veined. Lemma surface glabrous. Lemma apex dentate; 2 -fid; with lobes 1-3(-4) mm long; lobes acuminate; awned; 1 -awned. Principal lemma awn dorsal; curved; 15-20 mm long overall. Palea 0.5 length of lemma.
Morphology Reproductive morphology Flowers
Anthers 3. Ovary pubescent all over.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; hairy all over. Hilum linear.
Distribution
Europe: central and eastern. Asia-temperate: Siberia and China. South America: western South America.
Reference
Aveneae. Fl Eur 1996.

Native to:

Austria, Belgium, Czechoslovakia, France, Germany, Greece, Hungary, Portugal, Switzerland, Yugoslavia

Introduced into:

Baltic States, Belarus, China South-Central, Denmark, Great Britain, Ukraine

Avena nuda L. appears in other Kew resources:

First published in Amoen. Acad. 3: 401 (1756)

Accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0