1. Family: Poaceae Barnhart
    1. Genus: Danthonia DC.
      1. Danthonia decumbens (L.) DC.

        This species is accepted, and its native range is Macaronesia, Europe, Medit. to Caucasus.

    [GB]
    Habit
    Perennial; caespitose. Culms erect, or geniculately ascending; 10-45(-70) cm long; 1-3 -noded. Leaves mostly basal. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs. Leaf-blades flat, or involute; 5-25 cm long; 2-4 mm wide. Leaf-blade apex obtuse, or abruptly acute.
    Inflorescences
    Inflorescence a panicle; comprising (3-)4-9(-11) fertile spikelets. Panicle contracted; linear, or oblong; 2-7 cm long; bearing few spikelets. Primary panicle branches bearing 1-3 fertile spikelets on each lower branch. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; (6.5-)8-11(-13) mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.5 mm long. Floret callus pubescent.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; (6.5-)8-11(-13) mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.5 mm long. Floret callus pubescent.
    Glume
    Glumes persistent; similar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate, or ovate; (3-)4-9(-11) mm long; 1 length of upper glume; membranous; 1-keeled; keeled above; 3-5 -veined. Lower glume apex obtuse, or acute. Upper glume lanceolate, or ovate; 1.2-1.7 length of adjacent fertile lemma; membranous; with hyaline margins; 1-keeled; keeled above; 3-5 -veined. Upper glume apex obtuse, or acute.
    Florets
    Fertile lemma elliptic; 5-7 mm long; coriaceous; without keel; 7-9 -veined. Lemma margins pubescent; hairy below. Lemma apex dentate; 2 -fid; mucronate. Principal lemma awn from a sinus. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy; glabrous. Anthers 3; 0.2-0.5 mm long; retained within floret.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid. Embryo 0.33 length of caryopsis. Hilum linear; 0.25 length of caryopsis.
    Cleistogene
    Cleistogenes present; in lower sheaths.
    Distribution
    Europe: northern, central, southwestern, southeastern, and eastern. Africa: north, Macaronesia, and middle Atlantic ocean. Asia-temperate: Caucasus and western Asia. Australasia: Australia and New Zealand. North America: eastern Canada, northwest USA, northeast USA, and southwest USA. South America: Mesoamericana.
    Reference
    Arundineae. TAC.

    Images

    Distribution

    Native to:

    Albania, Algeria, Austria, Azores, Baltic States, Belarus, Belgium, Bulgaria, Cape Verde, Central European Rus, Corse, Czechoslovakia, Denmark, Finland, France, Free State, Føroyar, Germany, Great Britain, Greece, Hungary, Iceland, Ireland, Italy, Krym, Madeira, Morocco, Netherlands, North European Russi, Northwest European R, Norway, Poland, Portugal, Romania, Sardegna, South European Russi, Spain, Sweden, Switzerland, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Ukraine, Yugoslavia

    Introduced into:

    British Columbia, California, Chatham Is., Costa Rica, New Zealand North, New Zealand South, Newfoundland, Nova Scotia, Oregon, St.Helena, Tasmania, Victoria, Washington

    Danthonia decumbens (L.) DC. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 1, 1959 Buchanan [49], South Africa K000702164
    Sandwith, N.Y. [3888], France K000702043
    Sandwith, N.Y. [5845], France K000702044
    Sandwith, N.Y. [4476], Spain K000702065
    Hubbard, C.E. [26], United Kingdom K000309996
    Turrill, W.B. [1619], Bulgaria K000702069
    Alston, A.H.G. [1902], Albania K000702068
    Germain, R. [11.078], Italy K000702057
    Pohl, R.W. [10858], Costa Rica K000702423
    Pohl, R.W. [14079], Costa Rica K000702424
    Pohl, R.W. [10813], Costa Rica K000702425
    Thomas [s.n.], France K000702055
    Asplund, E. [185], Sweden K000702001
    Blake, S.T. [18392], Tasmania K000702160
    Blake, S.T. [18392], Tasmania K000702161
    illegible [1400], Russian Federation K000702148
    Reverchon, E. [s.n.], France K000702045
    Acocks, J.P.H. [19040], South Africa K000702165
    Meebold, A. [s.n.], Germany K000702016
    Fernald, M.L. [4607], Canada K000702420
    Hunt, T.C. [s.n.], Azores K000702127
    Hunt, T.C. [s.n.], Azores K000702128
    Hunt, T.C. [s.n.], Azores K000702129
    Lindberg, H. [470], Finland K000702004
    Fourcade [s.n.], France K000702046
    Pitard, C.J. [1179], Morocco K000702139
    Bonnet, E. [s.n.], France K000702053
    Robinson, B.L. [206], Canada K000702421
    Fiori, A. [1414], Italy K000702061
    Ahlberg, F. [s.n.], Sweden K000702008
    Vickery, J. [7467], Australia K000702162
    Fraser, J. [s.n.], United Kingdom K000309987
    Ellman, E. [605], Spain K000702064
    Favrat, L. [s.n.], Switzerland K000702029
    Cope, T.A. [RBG 112], United Kingdom K000914555
    Lauterbach, C. [10013], Germany K000702018
    Ostenfeld, C. [s.n.], Iceland K000309997
    s.coll. [s.n.], United Kingdom K000309985
    s.coll. [s.n.], United Kingdom K000309986
    s.coll. [s.n.], United Kingdom K000309989
    s.coll. [s.n.], United Kingdom K000309991
    s.coll. [s.n.], United Kingdom K000309992
    s.coll. [s.n.], United Kingdom K000309994
    s.coll. [s.n.], United Kingdom K000309995
    s.coll. [470], Finland K000702003
    s.coll. [s.n.], Germany K000702013
    s.coll. [s.n.], Germany K000702014
    s.coll. [s.n.], Germany K000702025
    s.coll. [s.n.], Germany K000702026
    s.coll. [s.n.], Switzerland K000702027
    s.coll. [s.n.], Europe K000702032
    s.coll. [s.n.], France K000702047
    s.coll. [s.n.], France K000702049
    s.coll. [s.n.], Italy K000702058
    s.coll. [s.n.], Italy K000702059
    s.coll. [s.n.], Portugal K000702062
    s.coll. [314], Madeira K000702131
    s.coll. [s.n.], Madeira K000702132
    s.coll. [s.n.], Madeira K000702133
    s.coll. [s.n.], Northern Africa K000702135
    s.coll. [s.n.], Africa K000702136
    s.coll. [s.n.], Tunisia K000702138
    s.coll. [717], Russian Federation K000702146
    Clarke, C.B. [46863], United Kingdom K000309990
    Clarke, C.B. [196], Madeira K000702130
    Waisbecker, A. [64], Hungary K000702030
    Snogerup, S. [s.n.], Sweden K000702007
    Shaw, A. [s.n.], United Kingdom K000309988
    Thurston, E. [s.n.], United Kingdom K000309993
    Vog, D.J. [s.n.], Europe K000309998
    Fagerstrom, L. [1814], Finland K000309999
    Fridtz, R.E. [s.n.], Norway K000310000
    Fries, H. [s.n.], Sweden K000702002
    Berg, A. [s.n.], Sweden K000702005
    Moe, N. [s.n.], Norway K000702006
    Fries, E. [s.n.], Sweden K000702009
    C.B. [s.n.], Sweden K000702010
    Johansson, N. [s.n.], Sweden K000702011
    Gross, L. [343], Germany K000702012
    Wricker, M. [910], Germany K000702015
    Lehmann, C.B. [s.n.], Germany K000702017
    Oberneder [4941], Germany K000702019
    Oberneder [4928], Germany K000702020
    Oberneder [1030], Germany K000702021
    Oberneder [1028], Germany K000702022
    Weicker, M. [910], Germany K000702023
    Fritze, H. [s.n.], Germany K000702024
    Bruggen, A. [s.n.], Switzerland K000702028
    Nyarady, E.I. [1164], Romania K000702031
    Krist, V. [518], Czech Republic K000702033
    Deyl, M. [114], Czech Republic K000702034
    Rolintz, C. [s.n.], Poland K000702035
    Henrard, J.T. [s.n.], Netherlands K000702036
    Reclaire, A. [s.n.], Netherlands K000702037
    Kloos, A.W. [s.n.], Netherlands K000702038
    Mosseray, R. [s.n.], Belgium K000702039
    Laguesse, A. [s.n.], France K000702041
    Lacroix, F. [1899], France K000702042
    Thuill [s.n.], France K000702048
    Jouley [s.n.], France K000702050
    Bordere [s.n.], France K000702051
    Pin., C [s.n.], France K000702052
    Diumede [s.n.], France K000702054
    Marcelle [s.n.], France K000702056
    Joran, A. [115], Italy K000702060
    Hoeller, J.D. [613], Portugal K000702063
    Maly [s.n.], Bosnia & Herzegovina K000702070
    Grabham, M. [105], Madeira K000702134
    Bouchet [s.n.], Africa K000702137
    Marcowicz, V. [4783], Georgia K000702140
    Kagalo, A. [05010], Belarus K000702141
    Tichomirov, V [5857], Russian Federation K000702142
    Skvortsov, A.K. [5.], Russian Federation K000702143
    Bulavkina, A. [s.n.], Russian Federation K000702144
    Westberg, G. [194], Lithuania K000702145
    Andreev, V. [2821], Russian Federation K000702147
    Mullett, H.A. [s.n.], Australia K000702163
    Dore, W.G. [896], Canada K000702419
    Duval, J. [s.n.], France K000702040
    Zeyher [s.n.], South Africa Melica decumbens K000345163
    Drege [s.n.], South Africa Melica decumbens K000345161 Unknown type material
    Drege [s.n.], South Africa Melica decumbens K000345162
    Bolus, H. [681], South Africa Melica decumbens K000345164
    [Hutton] [s.n.], South Africa Melica decumbens K000345165

    First published in J.B.A.M.de Lamarck & A.P.de Candolle, Fl. Franç., ed. 3, 3: 33 (1805)

    Accepted by

    • Retief, E. & Meyer, N.L. (2017). Plants of the Free State inventory and identification guide Strelitzia 38: 1-1236. National Botanical Institute, Pretoria.
    • Parslow, R. & Bennallick, I. (2017). The new flora of the Isles of Scilly: 1-539. Parslow Press.
    • 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.
    • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Mallett, K. (ed.) (2005). Flora of Australia 44B: 1-486. Australian Government Publishing Service, Canberra.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.
    • Hansen, A. & Sunding, P. (1993). Flora of Macaronesia. Checklist of vascular plants. 4. revised edition Sommerfeltia 17: 1-295.
    • Davis, P.H. (ed.) (1985). Flora of Turkey and the East Aegean Islands 9: 1-724. Edinburgh University Press, Edinburgh.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    Literature

    Kew Backbone Distributions
    • Retief, E. & Meyer, N.L. (2017). Plants of the Free State inventory and identification guide Strelitzia 38: 1-1236. National Botanical Institute, Pretoria.
    • 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.
    • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Mallett, K. (ed.) (2005). Flora of Australia 44B: 1-486. Australian Government Publishing Service, Canberra.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
    • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.
    • Hansen, A. & Sunding, P. (1993). Flora of Macaronesia. Checklist of vascular plants. 4. revised edition Sommerfeltia 17: 1-295.
    • Davis, P.H. (ed.) (1985). Flora of Turkey and the East Aegean Islands 9: 1-724. Edinburgh University Press, Edinburgh.
    • Brown, L.C. (1982). The Flora and Fauna of St Helena: 1-88. Land Resources Development Centre, Surbiton, England.
    • 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

    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