1. Family: Poaceae Barnhart
    1. Genus: Arctopoa (Griseb.) Prob.
      1. Arctopoa trautvetteri (Tzvelev) Prob.

        This species is accepted, and its native range is E. Siberia.

    [GB]
    Habit
    Perennial; caespitose. Culms erect, or geniculately ascending; 17-65 cm long. Culm-internodes terete; smooth. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths tubular for much of their length. Ligule an eciliate membrane; 2-4.5 mm long. Leaf-blades conduplicate, or convolute; 6-20 cm long; 4-5 mm wide. Leaf-blade apex acute.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; dense; 5-15 cm long; 1-7 cm wide. Primary panicle branches appressed; 2-4 -nate. Panicle branches smooth. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 6-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus glabrous.
    Fertile
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 6-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus glabrous.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate, or elliptic; 0.75 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex erose; acute. Upper glume lanceolate, or elliptic; 0.9 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex erose; acute.
    Florets
    Fertile lemma ovate; 4-5.25 mm long; membranous; keeled; 7 -veined. Lemma midvein ciliate. Lemma surface asperulous; pilose; hairy on veins. Lemma margins ciliate. Lemma apex acute. Palea 0.9 length of lemma. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 1.5-2.5 mm long.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    Asia-temperate: Siberia.
    Reference
    Poeae. Zlaki 1997.

    Distribution

    Native to:

    Yakutskiya

    Arctopoa trautvetteri (Tzvelev) Prob. appears in other Kew resources:

    First published in Novosti Sist. Vyssh. Rast. 11: 51 (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 trautvetteri.]

    Literature

    Kew Backbone Distributions
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.

    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