1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis ajanensis Kharkev. & Prob.

        This species is accepted, and its native range is Russian Far East.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Culms erect; 40-50(-110) cm long. Culm-internodes antrorsely scabrous. Lateral branches lacking. Ligule an eciliate membrane. Leaf-blades 12-25 cm long; (6-)8-10 mm wide; stiff; glaucous. Leaf-blade surface smooth; glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; oblong; continuous, or interrupted; 9-12 cm long; 1.3-2 cm wide. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 8-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 0.15-0.25 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 8-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 0.15-0.25 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 8-11 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex attenuate. Upper glume lanceolate; 8-11 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled. Upper glume apex attenuate.
    Florets
    Fertile lemma oblong; 5-7 mm long; membranous; without keel; 5 -veined. Lemma apex awned; 1 -awned. Principal lemma awn dorsal; arising 0.1-0.25 way up back of lemma; geniculate; 9.5-12.5 mm long overall. Palea 1 length of lemma.
    Flowers
    Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    Asia-temperate: Soviet far east.
    Reference
    Aveneae. Chark & Prob 2006.

    Distribution

    Native to:

    Khabarovsk, Sakhalin

    Calamagrostis ajanensis Kharkev. & Prob. appears in other Kew resources:

    First published in Bot. Zhurn. (Moscow & Leningrad) 68: 1409 (1983)

    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.
    • Kharkevich, S.S., Probatova, N.S. & Novikov, V.S. (1985). Sosudistye rasteniia sovetskogo Dal’nego Vostoka 1: 1-383. Izd-vo "Nauka," Leningradskoe otd-nie, Leningrad.

    Literature

    Kew Backbone Distributions
    • Kharkevich, S.S., Probatova, N.S. & Novikov, V.S. (1985). Sosudistye rasteniia sovetskogo Dal’nego Vostoka 1: 1-383. Izd-vo "Nauka," Leningradskoe otd-nie, Leningrad.

    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