Skip to main content
  1. Family: Poaceae Barnhart
    1. Genus: Achnatherum P.Beauv.
      1. Achnatherum calamagrostis (L.) P.Beauv.

        This species is accepted, and its native range is Morocco, Central & S. Europe, Central Asia to Siberia and N. & Central China.

    [GB]
    Habit
    Perennial; caespitose. Cataphylls evident. Culms robust; 60-120 cm long. Leaf-sheaths smooth; outer margin glabrous, or hairy. Leaf-sheath oral hairs lacking, or ciliate. Ligule an eciliate membrane; 0.3 mm long. Leaf-blades involute; 2-3 mm wide. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; 15-30 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; acute.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; acute.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; shiny. Lower glume lanceolate; 1 length of upper glume; membranous; without keels; 3 -veined. Lower glume surface glabrous, or puberulous. Lower glume apex acute. Upper glume lanceolate; 8-9 mm long; membranous; without keels; 3 -veined. Upper glume surface glabrous, or puberulous. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; subterete; 3-4 mm long; coriaceous; without keel; 5 -veined. Lemma surface villous. Lemma margins convolute; covering most of palea. Lemma hairs 3-4 mm long. Lemma apex awned; 1 -awned. Principal lemma awn straight, or curved; 10 mm long overall. Palea 2 -veined; without keels.
    Flowers
    Lodicules 3. Anthers 3; 3.5-4 mm long. Stigmas 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; fusiform. Hilum linear.
    Distribution
    Europe: central, southwestern, and southeastern.
    Reference
    Stipeae. Fl Eur 1995.

    Distribution

    Native to:

    Albania, Altay, Austria, Bulgaria, Buryatiya, China North-Central, China South-Central, Chita, France, Germany, Greece, Inner Mongolia, Irkutsk, Italy, Kirgizstan, Krasnoyarsk, Manchuria, Mongolia, Morocco, Northwest European R, Romania, Spain, Switzerland, Tadzhikistan, Tuva, West Siberia, Xinjiang, Yakutskiya, Yugoslavia

    Introduced into:

    Czechoslovakia

    Synonyms

    Other Data

    Achnatherum calamagrostis (L.) P.Beauv. appears in other Kew resources:

    Bibliography

    First published in Ess. Agrostogr.: 19 (1812)

    Accepted by

    • Dimopoulos, P., Raus, T., Bergmeier, E., Constantinidis, T., Iatrou, G., Kokkini, S., Strid, A., & Tzanoudakis, D. (2013). Vascular plants of Greece. An annotated checklist: 1-372. Botanic gardens and botanical museum Berlin-Dahlem, Berlin and Hellenic botanical society, Athens.
    • Aver'ianov, L.V. & al. (2006). Illyustrirovannyi opredelitel' rastenii Leningradskoi oblasti: 1-799. Nauka, Moskva.

    Not accepted by

    • Danihelka, J. Chrtek, J. & Kaplan, Z. (2012). Checklist of vascular plants of the Czech Republic Preslia. Casopsi Ceské Botanické Spolecnosti 84: 647-811. [Cited as Stipa calamagrostis.]
    • 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 Stipa calamagrostis.]

    Literature

    Kew Backbone Distributions

    • Danihelka, J. Chrtek, J. & Kaplan, Z. (2012). Checklist of vascular plants of the Czech Republic Preslia. Casopsi Ceské Botanické Spolecnosti 84: 647-811.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • 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.
    • Aver'ianov, L.V. & al. (2006). Illyustrirovannyi opredelitel' rastenii Leningradskoi oblasti: 1-799. Nauka, Moskva.
    • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
    • 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