1. Family: Poaceae Barnhart
    1. Genus: Arctopoa (Griseb.) Prob.
      1. Arctopoa subfastigiata (Trin.) Prob.

        This species is accepted, and its native range is Siberia to N. China.

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms 35-120 cm long. Culm-internodes elliptical in section; smooth. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1.5 mm long. Leaf-blades flat, or conduplicate; 2-5 mm wide; stiff. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; pyramidal; 15-25 cm long; 10-25 cm wide. Primary panicle branches 2-5 -nate; 5-10 cm long. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-8 mm long; 2-4 mm wide; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
    Fertile
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-8 mm long; 2-4 mm wide; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 0.75 length of upper glume; membranous; 1-keeled. Lower glume apex acute. Upper glume ovate; 1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 4-5.5 mm long; membranous; keeled; 5 -veined. Lemma lateral veins prominent. Lemma apex acute. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    Asia-temperate: Siberia, Soviet far east, China, and Mongolia.
    Reference
    Poeae. Fl USSR 1995.

    Images

    Distribution

    Native to:

    Amur, Buryatiya, China North-Central, Chita, Inner Mongolia, Irkutsk, Khabarovsk, Magadan, Manchuria, Mongolia, Qinghai, Tuva, Yakutskiya

    Introduced into:

    Primorye

    Arctopoa subfastigiata (Trin.) Prob. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2010 illegible [s.n.], Russian Federation Poa subfastigiata K000789574
    Jan 1, 2010 Ledebour, K.F.von. [s.n.], Siberia Poa subfastigiata K000789575 isotype

    First published in Novosti Sist. Vyssh. Rast. 11: 52 (1974)

    Not 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. [Cited as Poa subfastigiata.]

    Literature

    Kew Backbone Distributions
    • Grubov, V.I. (2008). Key to the vascular plants of Mongolia (with an atlas) 2: 1-503. Academy of Sciences, Mongolian People's Republic, Ulaan Bator.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • 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

    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