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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis subacrochaeta Nakai

        This species is accepted, and its native range is N. Korea.

    [GB]
    Habit
    Perennial. Culms 70-150 cm long. Ligule an eciliate membrane; 2-4 mm long. Leaf-blades 25 cm long; 5 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; oblong. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 3-4 mm long; 1-1.2 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 3-4 mm long; 1-1.2 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 3 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 2.7 mm long; membranous; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.75 way up back of lemma; straight; 1 mm long overall; not or scarcely exserted from spikelet. Palea 1.8 mm long. Rhachilla extension villous.
    Flowers
    Lodicules 2. Anthers 3; 2 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
    Distribution
    Asia-temperate: eastern Asia.
    Reference
    Aveneae. Man Gr Korea 1997.

    Distribution

    Other Data

    Calamagrostis subacrochaeta Nakai appears in other Kew resources:

    Bibliography

    First published in Bot. Mag. (Tokyo) 40: 490 (1926)

    Accepted by

    • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.

    Literature

    Kew Backbone Distributions

    • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.

    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