1. Family: Poaceae Barnhart
    1. Parahyparrhenia A.Camus

      1. This genus is accepted, and its native range is W. Tropical Africa to Sahara and Sudan, India, Indo-China.

    [GB]

    nonem

    Habit
    Annual (1/5), or perennial (4/5). Culms erect (5/5); 20-69.83-160 cm long. Lateral branches lacking (1/1). Leaf-sheath auricles absent (4), or erect (2). Ligule an eciliate membrane (3), or a fringe of hairs (3). Leaf-blades filiform (2), or linear (4).
    Inflorescences
    Inflorescence composed of racemes; subtended by a spatheole; exserted (5), or enclosed (1). Spatheole linear; herbaceous. Racemes single (4), or paired (4); bearing few fertile spikelets (5), or many spikelets (1); bearing 4 fertile spikelets on each (3/5), or 5-7 fertile spikelets on each (4/5), or 9-12 fertile spikelets on each (1/5). Rhachis fragile at the nodes; flattened (1/1). Rhachis internodes filiform (5), or linear (1). Rhachis internode tip oblique; flat. Raceme-bases brief (2), or filiform (4); subequal (2/4), or unequal (the longer measured) (2/4). Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels filiform.
    Sterile
    Basal sterile spikelets absent (1), or well-developed (5). Companion sterile spikelets well-developed; separately deciduous. Companion sterile spikelet callus indistinct (3), or square (1), or oblong (2), or linear (1). Companion sterile spikelet glumes muticous (2), or awned (4).
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (5), or lanceolate (1); subterete; 4.5-7.375-12 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; pubescent (1), or pilose (5); base acute (2), or pungent (4); attached obliquely. Basal sterile spikelets absent (1), or well-developed (5). Companion sterile spikelets well-developed; separately deciduous. Companion sterile spikelet callus indistinct (3), or square (1), or oblong (2), or linear (1). Companion sterile spikelet glumes muticous (2), or awned (4).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (5), or lanceolate (1); subterete; 4.5-7.375-12 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; pubescent (1), or pilose (5); base acute (2), or pungent (4); attached obliquely.
    Glume
    Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate (1), or elliptic (3), or oblong (2); coriaceous; without keels; 3-4 -veined (1/2), or 6 -veined (1/2). Lower glume surface convex (1), or with a longitudinal median groove (5); glabrous (4), or pilose (2). Lower glume apex entire (3), or dentate (3); 2 -fid (2/3), or 3 -fid (1/3); muticous (5), or mucronate (1). Upper glume lanceolate (2), or elliptic (2), or oblong (2); coriaceous; 1 -veined (1/2), or 5 -veined (1/2). Upper glume apex entire (5), or dentate (1); 2 -fid (1/1); muticous (3), or awned (4); 1 -awned (1/1).
    Florets
    Basal sterile florets barren (5/5); without significant palea (5/5). Lemma of lower sterile floret lanceolate (3/5), or oblong (2/5); hyaline (5/5); 2 -veined (2/2). Fertile lemma linear (2), or oblong (4); hyaline (5), or chartaceous (1); without keel; 1 -veined (2/4), or 3 -veined (2/4). Lemma margins eciliate (4), or ciliolate (2). Lemma apex dentate (5), or lobed (1); 2 -fid; incised 0.1-0.2-0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; limb glabrous (5), or puberulous (1). Column of lemma awn hispidulous (1), or puberulous (1), or pubescent (3), or hirsute (1). Palea present (1), or absent or minute (5).
    Flowers
    Anthers 3 (2/2).
    Distribution
    Africa (2), or Tropical Asia (4).

    Images

    Distribution

    Native to:

    Algeria, Burkina, Cameroon, Central African Repu, Chad, Ghana, Guinea, India, Ivory Coast, Laos, Liberia, Mali, Senegal, Sierra Leone, Sudan, Thailand

    Parahyparrhenia A.Camus appears in other Kew resources:

    First published in Bull. Mus. Natl. Hist. Nat., sér. 2, 22: 404 (1950)

    Literature

    Flora of West Tropical Africa
    • Clayton in Kew Bull. 20: 434 (1966).
    • in Bull. Mus. Hist. Paris, sér. 2, 22: 404 (1950)

    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