1. Family: Poaceae Barnhart
    1. Genus: Oreochloa Link
      1. Oreochloa disticha (Wulfen) Link

        This species is accepted, and its native range is Central Europe to Ukraine.

    [GB]
    Habit
    Perennial; caespitose. Culms 6-20(-30) cm long. Leaf-sheaths glabrous on surface, or pilose. Ligule an eciliate membrane; 2-3(-6) mm long; obtuse, or acute. Leaf-blades filiform; convolute; 10-15 cm long; 0.2-0.6 mm wide. Leaf-blade surface glabrous, or pilose.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; oblong; unilateral; 0.9-1.4 cm long. Rhachis pubescent on surface. Spikelet packing broadside to rhachis; crowded; regular; 2 -rowed. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
    Spikelets
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose.
    Fertile
    Spikelets comprising 3-4 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 3.5-4 mm long; 1 length of upper glume; membranous; 1-keeled; keeled above; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 3.5-4 mm long; 0.8 length of adjacent fertile lemma; membranous; 1-keeled; keeled above; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 4-5 mm long; membranous; much thinner on margins; keeled; 5 -veined. Lemma surface pilose; hairy below. Lemma apex acute; muticous, or mucronate. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.
    Fruits
    Hilum elliptic.
    Distribution
    Europe: central, southwestern, southeastern, and eastern.
    Reference
    Poeae. WDC.

    Distribution

    Native to:

    Austria, Czechoslovakia, France, Germany, Italy, Poland, Romania, Switzerland, Ukraine, Yugoslavia

    Oreochloa disticha (Wulfen) Link appears in other Kew resources:

    First published in Hort. Berol. 1: 44 (1827)

    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.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    Literature

    Kew Backbone Distributions
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    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