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This species is accepted, and its native range is Himalaya to China (Sichuan, Yunnan).
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Perennial; caespitose. Butt sheaths persistent and investing base of culm; with compacted dead sheaths. Culms erect; 15-30 cm long. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1 mm long. Leaf-blades flat, or involute; 13.5 cm long; 2.5-3 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy adaxially. Leaf-blade margins scaberulous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; oblong; equilateral; 2.5-5 cm long. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scaberulous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
Fertile
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 4-4.5 mm long; 0.9-1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume surface asperulous. Lower glume apex acuminate. Upper glume lanceolate; 4-5 mm long; 1-1.2 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume surface asperulous. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong, or ovate; 4 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.66 way up back of lemma; 3 mm long overall. Palea 3 mm long; hyaline; 2 -veined. Rhachilla extension 1.5-2 mm long; pilose.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 3; 2 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
Asia-temperate: China. Asia-tropical: India.
Reference
Aveneae. Fl Assam 1993.

Native to:

China South-Central, East Himalaya, Nepal, Tibet, West Himalaya

Calamagrostis lahulensis G.Singh appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 19, 1998 Hooker, J.D. [s.n.], Sikkim K000032374 Unknown type material
Feb 19, 1998 Hooker, J.D. [s.n.], India K000032375 Unknown type material
Feb 19, 1998 Hooker, J.D. [10], Sikkim K000032376 Unknown type material
Feb 19, 1998 Hooker, J.D. [10], Sikkim K000032377 Unknown type material
Feb 19, 1998 Hooker, J.D. [s.n.], India K000838346
Feb 19, 1998 Hooker, J.D. [s.n.], Sikkim K000838345
Feb 19, 1998 Hooker, J.D. [s.n.] K000838348
Hooker, J.D. [s.n.], Nepal K000838347 Unknown type material

First published in Taxon 33: 94 (1984)

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.
  • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
  • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.

Literature

Kew Backbone Distributions

  • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
  • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
  • 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

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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