1. Family: Poaceae Barnhart
    1. Arthropogon Nees

      1. This genus is accepted, and its native range is Caribbean, Colombia, Bolivia to Brazil.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (4), or short (1). Culms erect (1/2), or geniculately ascending (1/2), or decumbent (1/2); slender (1/1); 30-50.5-100 cm long. Culm-nodes constricted (1/1). Lateral branches lacking (1/1). Ligule an eciliate membrane (2), or a ciliolate membrane (2), or a fringe of hairs (1). Leaf-blades filiform (2), or linear (3), or lanceolate (1); stiff (1), or firm (4).
    Inflorescences
    Inflorescence a panicle. Panicle open (4), or contracted (1). Spikelets solitary, or in pairs (1). Fertile spikelets pedicelled; 1-2 in the cluster (1/1). Pedicels filiform.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (2), or elliptic (1), or oblong (3); laterally compressed; 4-6.3-9 mm long; falling entire. Spikelet callus brief (4), or linear (1); pubescent (2), or pilose (2), or bearded (2).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (2), or elliptic (1), or oblong (3); laterally compressed; 4-6.3-9 mm long; falling entire. Spikelet callus brief (4), or linear (1); pubescent (2), or pilose (2), or bearded (2).
    Glume
    Glumes shorter than spikelet (1), or reaching apex of florets (4); firmer than fertile lemma. Lower glume subulate (2), or linear (3), or lanceolate (1); coriaceous (3/3); without keels (3/3); 3 -veined (3/3). Lower glume apex awned (3/3). Upper glume linear (1), or lanceolate (1), or oblong (3), or ovate (1); coriaceous; with undifferentiated margins (4), or scarious margins (1); without keels; 3 -veined (3), or 5 -veined (2), or 6-7 -veined (1). Upper glume surface smooth (3), or scabrous (2). Upper glume apex entire (4), or dentate (2); 2 -fid (2/2); awned; 1 -awned.
    Florets
    Basal sterile florets male (2), or barren (3); with palea (4), or without significant palea (1). Lemma of lower sterile floret lanceolate (1), or oblong (4); membranous (1), or coriaceous (4); 3 -veined (3), or 5 -veined (2), or 6-7 -veined (1); obtuse (4), or acute (1); muticous (4), or awned (1). Fertile lemma linear (4), or lanceolate (1); membranous (4), or scarious (1); without keel; 1 -veined (2), or 3 -veined (3). Lemma apex obtuse (4/4). Palea present (4), or absent or minute (1); embraced by lemma (3/4), or separating from lemma above (1/4); 0.5-0.6867-0.9 length of lemma; hyaline (4/4); 0 -veined (1/2), or 3 -veined (1/2); without keels (4/4).
    Flowers
    Lodicules 2; fleshy. Anthers 2 (1), or 3 (4). Stigmas 2 (4/4).
    Fruits
    Caryopsis with adherent pericarp (4/4). Embryo 0.5 length of caryopsis.
    Distribution
    South America.

    Images

    Distribution

    Native to:

    Bolivia, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Cuba, Jamaica

    Arthropogon Nees appears in other Kew resources:

    First published in C.F.P.von Martius, Fl. Bras. Enum. Pl. 2: 319 (1829)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    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 2018. 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 2018. 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