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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis sichuanensis J.L.Yang

        This species is accepted, and its native range is Tibet to China (Sichuan, Gansu).

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms erect; 33-50 cm long; 2-3 mm diam.; 3-4 -noded. Leaf-sheaths longer than adjacent culm internode; smooth; glabrous on surface. Ligule an eciliate membrane; 3-4 mm long; scarious; truncate. Leaf-blades 11-25 cm long; 4-5 mm wide. Leaf-blade surface scaberulous; rough abaxially; glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 11-22 cm long; 1-2 cm wide. Primary panicle branches 3-4 -nate; naked below, or bearing spikelets almost to the base. Panicle branches flexuous; glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 2.5-2.8 mm long; 1 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 2.5-2.8 mm long; 1 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets. Lower glume lanceolate; 3.5-4 mm long; 1.1 length of upper glume; membranous; light green, or purple; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface hirsute. Lower glume apex acute. Upper glume lanceolate; 3.2-3.8 mm long; 1.3 length of adjacent fertile lemma; membranous; light green, or purple; 1-keeled. Upper glume surface hirsute. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 2.5-2.8 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; straight; 1.2 mm long overall; not or scarcely exserted from spikelet. Palea 2 mm long. Rhachilla extension 1.8 mm long; pilose; with 1.8 mm long hairs.
    Flowers
    Lodicules 2. Anthers 3; 1 mm long.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
    Cleistogene
    Cleistogenes present; in lower sheaths.
    Distribution
    Asia-temperate: China.
    Reference
    Aveneae. Yang 2003.

    Distribution

    Native to:

    China North-Central, China South-Central, Tibet

    Synonyms

    Other Data

    Calamagrostis sichuanensis J.L.Yang appears in other Kew resources:

    Bibliography

    First published in Acta Bot. Yunnan. 5: 47 (1983)

    Accepted by

    • Nobis, M. & al. (2015). Contribution to the flora of Asian and European countries: new national and regional vascular plant records, 4 Acta Botanica Gallica: Botany Letters 162: 301-316.
    • 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

    • Nobis, M. & al. (2015). Contribution to the flora of Asian and European countries: new national and regional vascular plant records, 4 Acta Botanica Gallica: Botany Letters 162: 301-316.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

    Sources

    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 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