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This species is accepted, and its native range is S. European Russia to Mongolia and Afghanistan.

[GB]
Morphology General Habit
Perennial. Rhizomes elongated. Butt sheaths persistent and investing base of culm. Culms erect; 20-50 cm long. Ligule an eciliate membrane. Leaf-blades convolute; 7-15 cm long; 1-3 mm wide; coriaceous; stiff. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 1; single; bilateral; 8-15 cm long; 8-10 mm wide. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis; crowded; with subequal internodes, or lowest internode elongated. Spikelets in pairs. Fertile spikelets sessile; 2 in the cluster.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 13 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 13 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume subulate; 7-9 mm long; 1 length of upper glume; 1 -veined. Upper glume subulate; 7-9 mm long; 1 length of adjacent fertile lemma; 1 -veined.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 7-9 mm long; coriaceous; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface scabrous; glabrous, or pilose. Lemma apex dentate; 2 -fid; acute; mucronate. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
Europe: eastern. Asia-temperate: Siberia, Soviet Middle Asia, western Asia, China, and Mongolia.
Reference
Triticeae. Fl Iran 1993.

Native to:

Afghanistan, Altay, Buryatiya, China North-Central, Inner Mongolia, Kazakhstan, Kirgizstan, Mongolia, Qinghai, South European Russi, Turkmenistan, Tuva, Uzbekistan, West Siberia, Xinjiang

Introduced into:

Primorye

Leymus paboanus (Claus) Pilg. appears in other Kew resources:

First published in Bot. Jahrb. Syst. 74: 6 (1947)

Accepted by

  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Probatova, N.S. & al. (2006). Flora Rossi?skogo Dal'nego Vostoka. Dopolneniya i izmeneniya k izdaniyu Sosudistye rasteniya sovetskogo Dal'nego Vostoka t. 1-8 (1985-1996): 1-454. Russian academy of sciences Far Eastern branch.
  • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
  • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

Literature

Kew Backbone Distributions

  • Grubov, V.I. (2008). Key to the vascular plants of Mongolia (with an atlas) 2: 1-503. Academy of Sciences, Mongolian People's Republic, Ulaan Bator.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
  • Probatova, N.S. & al. (2006). Flora Rossi?skogo Dal'nego Vostoka. Dopolneniya i izmeneniya k izdaniyu Sosudistye rasteniya sovetskogo Dal'nego Vostoka t. 1-8 (1985-1996): 1-454. Russian academy of sciences Far Eastern branch.
  • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
  • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
  • Roshevitz, R.J. & al. (eds.) (1950). Flora Kirgizskoi SSR 2: 1-315. Frunze : Izd-vo KirgizFAN SSSR.

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