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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis staintonii G.Singh

        This species is accepted, and its native range is W. & Central Himalaya, China (Sichuan, Yunnan).

    [GB]
    Habit
    Perennial. Rhizomes short. Culms 30-60 cm long. Culm-internodes smooth; distally glabrous. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths striately veined; smooth; glabrous on surface. Ligule an eciliate membrane; 2.5 mm long; obtuse. Leaf-blades conduplicate; 15-25 cm long; 2-5 mm wide. Leaf-blade surface smooth, or scabrous; glabrous. Leaf-blade margins scaberulous.
    Inflorescences
    Inflorescence a panicle; without bracts, or bracteate at branch bases. Panicle open; ovate; 18 cm long; 13 cm wide. Primary panicle branches 3-7 -nate; 4-8 cm long. Panicle branches smooth; glabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets elliptic; laterally compressed; acuminate; 3.5-4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 1 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets elliptic; laterally compressed; acuminate; 3.5-4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 1 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume elliptic; 3.5-4.5 mm long; 1 length of upper glume; membranous; dark green and purple; 1-keeled; keeled above; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex acute, or acuminate. Upper glume elliptic; 3.5-4.5 mm long; 1.4-1.6 length of adjacent fertile lemma; membranous; dark green and purple; 1-keeled; keeled above; 3 -veined. Upper glume surface scabrous. Upper glume apex acuminate.
    Florets
    Fertile lemma elliptic, or oblong; 2.5-2.75 mm long; hyaline; without keel; 5 -veined. Lemma surface scaberulous. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5-0.66 way up back of lemma; straight; 6-7 mm long overall. Palea hyaline; 2 -veined. Palea keels smooth.
    Flowers
    Lodicules 2. Anthers 3; 2 mm long; purple. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    Asia-temperate: China. Asia-tropical: India.
    Reference
    Aveneae. Bor 1996.

    Images

    Distribution

    Native to:

    China South-Central, Nepal, West Himalaya

    Synonyms

    Other Data

    Calamagrostis staintonii G.Singh appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Stainton, J.D.A. [3889], Nepal K000838331 Unknown type material
    Stainton, J.D.A. [3889], Nepal K000098587 Unknown type material
    Stainton, J.D.A. [3889], Nepal K000098588 Unknown type material

    Bibliography

    First published in Taxon 33: 94 (1984)

    Accepted by

    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    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.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.

    Sources

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    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 2020. 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 2020. 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