1. Family: Poaceae Barnhart
    1. Genus: Poa L.
      1. Poa alpina L.

        This species is accepted, and its native range is Temp. Northern Hemisphere to Mexico (Veracruz).

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths herbaceous; persistent and investing base of culm; with compacted dead sheaths. Culms erect, or geniculately ascending; 5-40 cm long; 1-2 -noded. Culm-internodes terete; smooth. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths without keel; smooth. Ligule an eciliate membrane; 3-6 mm long; obtuse, or acute. Leaf-blades flat, or conduplicate; 2-12 cm long; 2-5 mm wide. Leaf-blade surface smooth; glabrous. Leaf-blade margins smooth, or scaberulous. Leaf-blade apex obtuse, or abruptly acute; hooded.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; dense, or loose; equilateral, or nodding; 3-7 cm long; 3-7 cm wide. Primary panicle branches spreading; 2 -nate. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.5-2 mm long.
    Spikelets
    Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong, or ovate; laterally compressed; 4-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; obscured by lemmas; smooth. Floret callus pubescent.
    Fertile
    Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong, or ovate; laterally compressed; 4-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; obscured by lemmas; smooth. Floret callus pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume elliptic, or ovate; 2.5-4 mm long; 0.8-0.9 length of upper glume; membranous; much thinner on margins; 1-keeled; 1-3 -veined. Lower glume primary vein scabrous. Lower glume apex acute. Upper glume elliptic, or ovate; 3-4.5 mm long; 0.8-0.9 length of adjacent fertile lemma; membranous; with hyaline margins; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume apex acute.
    Florets
    Fertile lemma ovate; oblong in profile; 3.5-5 mm long; membranous; much thinner above; keeled; 5 -veined. Lemma midvein ciliate; hairy below. Lemma lateral veins stopping well short of apex. Lemma surface pubescent; hairy on veins. Lemma margins ciliate; hairy below. Lemma apex acute. Palea 1 length of lemma. Palea keels ciliolate. 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.
    Vegetative Multiplication
    Vegetative proliferation occurs.
    Distribution
    Europe: northern, central, southwestern, southeastern, and eastern. Africa: north. Asia-temperate: Siberia, Soviet far east, Soviet Middle Asia, Caucasus, western Asia, China, Mongolia, and eastern Asia. Asia-tropical: India. North America: Subarctic, western Canada, eastern Canada, northwest USA, and southwest USA.
    Reference
    Poeae. CEH.

    Images

    Distribution

    Doubtfully present in:

    Algeria

    Native to:

    Afghanistan, Alaska, Albania, Alberta, Altay, Austria, Baltic States, British Columbia, Bulgaria, Buryatiya, Colorado, Corse, Czechoslovakia, East European Russia, Finland, France, Føroyar, Germany, Great Britain, Greece, Greenland, Iceland, Idaho, Iran, Ireland, Italy, Kazakhstan, Kirgizstan, Krasnoyarsk, Labrador, Magadan, Manitoba, Mexico Gulf, Michigan, Mongolia, Montana, Morocco, Nepal, Nevada, New Brunswick, New Mexico, North Caucasus, North European Russi, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ontario, Oregon, Pakistan, Poland, Qinghai, Québec, Romania, Saskatchewan, Sicilia, Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Tibet, Transcaucasus, Turkey, Tuva, Ukraine, Utah, Uzbekistan, Washington, West Himalaya, West Siberia, Wyoming, Xinjiang, Yugoslavia, Yukon

    Poa alpina L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2016 Kotschy, T. [104], Turkey K000641311
    Jan 1, 1936 Pohle., R. [s.n.] K000633895
    Jan 1, 1936 Pohle., R. [s.n.] K000633896
    Switzerland K000641279
    Switzerland K000641280
    s.coll. [s.n.], France K000641284
    Domin, K. [364], Slovakia K000641282
    Todaro [479], Italy K000641286
    Tineo [s.n.], Italy K000641287
    Willkomm [425], Spain K000641290
    Balbis [s.n.], Italy K000641289 Unknown type material
    Hoppe [s.n.] K000641285
    [Czetz, C.] [s.n.], Romania K000641281
    [Fischer] [s.n.] K000641283
    [Aperrinia] [63.33] K000641288

    First published in Sp. Pl.: 67 (1753)

    Accepted by

    • Kavousi, M., Assadi, M. & Nejadsattari, T. (2015). Taxonomic revision of the genus Poa L. in Iran, new additions to Flora Iranica, and a new identification key Turkish Journal of Botany 39: 105-127.
    • Marhold, K. (ed.) (2013). IAPT/IOPB chromosome data 16 Taxon 62: 1355-1360.
    • Soreng, R.J. & Peterson, P.M. (2012). Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii PhytoKeys 15: 1-104.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • 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.
    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • 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.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • 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.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • 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.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    Literature

    Kew Backbone Distributions
    • Soreng, R.J. & Peterson, P.M. (2012). Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii PhytoKeys 15: 1-104.
    • Marhold, K. (ed.) (2012). IAPT/IOPB chromosome data 14 Taxon 61: 1336-1345.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • 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.
    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • 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.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • 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.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Davis, P.H. (ed.) (1985). Flora of Turkey and the East Aegean Islands 9: 1-724. Edinburgh University Press, Edinburgh.
    • 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.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
    • 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.
    • Merkodovich, N.A. (ed.) (1941). Flora Uzbekistana 1: 1-566. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.

    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 2019. 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 2019. 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