1. Family: Poaceae Barnhart
    1. Genus: Arctopoa (Griseb.) Prob.
      1. Arctopoa tibetica (Munro ex Stapf) Prob.

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes elongated. Butt sheaths herbaceous; persistent and investing base of culm; with fibrous dead sheaths. Culms erect, or geniculately ascending; 17-65 cm long. Culm-internodes terete; smooth. Lateral branches lacking. Leaves mostly basal. Ligule an eciliate membrane; 2-4.5 mm long; lacerate. Leaf-blades conduplicate, or convolute; 6-20 cm long; 4-5 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex acute.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 5-12 cm long. 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; 2.8-4.5 mm long; 0.8 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex erose; acute. Upper glume lanceolate, or elliptic; 3.5-5.5 mm long; 0.9 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex erose; acute.
    Florets
    Fertile lemma ovate; elliptic in profile, or oblong in profile; 4-5.25 mm long; membranous; keeled; 5 -veined. Lemma midvein ciliate. Lemma surface asperulous. Lemma margins ciliate. Lemma apex acute. Palea 0.9 length of lemma. Palea keels scabrous and spinulose; adorned below (spinulose). 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, Soviet Middle Asia, China, and Mongolia. Asia-tropical: India.
    Reference
    Poeae. Fl Pak.

    Images

    Distribution

    Native to:

    Altay, China North-Central, Inner Mongolia, Kazakhstan, Kirgizstan, Krasnoyarsk, Mongolia, Nepal, Qinghai, Tadzhikistan, Tibet, Tuva, West Himalaya, Xinjiang

    Arctopoa tibetica (Munro ex Stapf) Prob. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2010 Price, M.P. [74], Mongolia Poa tibetica K000789576 holotype
    Hooker, J.D. [s.n.], Tibet Poa tibetica K000789478
    Strachey, R. [1], Tibet Poa tibetica K000789479 Unknown type material

    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 tibetica.]

    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.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Ovczinnikov, P.N. (ed.) (1957). Flora Tadzhikskoi SSR 1: 1-547. Izd-vo Akademii nauk SSSR, Moskva.
    • Pavlov, N.V. (ed.) (1956). Flora Kazakhstana 1: 1-354. Alma-Ata, Izd-vo Akademii nauk Kazakhskoi SSR.
    • Roshevitz, R.J. & al. (eds.) (1950). Flora Kirgizskoi SSR 2: 1-315. Frunze : Izd-vo KirgizFAN SSSR.

    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