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This species is accepted, and its native range is S. Siberia to Mongolia.

[GB]
Morphology General Habit
Perennial; caespitose; clumped densely. Rhizomes elongated. Culms erect; 30-60 cm long; 2-3 -noded. Culm-internodes smooth; distally glabrous. Lateral branches lacking. Ligule an eciliate membrane; 0.5-2.5 mm long; entire, or lacerate; truncate. Leaf-blades convolute; 2-3 mm wide; stiff. Leaf-blade surface scabrous; glabrous. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; oblong; 5-8 cm long; 1-2 cm wide. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.9-1 length of lemma.
Fertile
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.9-1 length of lemma.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 5-6 mm long; 1.6 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 3.1-3.6 mm long; membranous; without keel. Lemma lateral veins with distinct primaries but obscure intermediates. Lemma apex awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; straight; 2 mm long overall. Palea 0.66 length of lemma; hyaline; 2 -veined. Rhachilla extension 0.7-1 mm long; villous; with 2.5-3 mm long hairs.
Morphology Reproductive morphology Flowers
Lodicules 2; lanceolate; membranous. Anthers 3; 1.7-1.9 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
Distribution
Asia-temperate: Siberia and Mongolia.
Reference
Aveneae. Malysch 1996.

Native to:

Buryatiya, Mongolia

Calamagrostis sajanensis Malyschev appears in other Kew resources:

First published in Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 21: 452 (1961)

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.
  • 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.
  • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.

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.
  • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.

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