1. Family: Poaceae Barnhart
    1. Genus: Perotis Aiton
      1. Perotis scabra Willd. ex Trin.

        This species is accepted, and its native range is Senegal to Sierra Leone.

    [GB]
    Habit
    Annual; caespitose. Culms decumbent; 30-60 cm long. Ligule an eciliate membrane. Leaf-blade base broadly rounded. Leaf-blades lanceolate; 1-2.5 cm long; 2-7 mm wide. Leaf-blade margins ciliate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; multilateral; 4-17 cm long. Spikelet packing crowded; irregular. Spikelets ascending; solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.2 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 3-3.5 mm long; falling entire. Spikelet callus oblong; 0.5-0.6 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 3-3.5 mm long; falling entire. Spikelet callus oblong; 0.5-0.6 mm long.
    Glume
    Glumes similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 2.5-3 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface hispidulous; hairy in lines. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 20-35 mm long. Upper glume lanceolate; 2.5-3 mm long; 2-3 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume primary vein conspicuous; smooth. Upper glume lateral veins absent. Upper glume surface hispidulous; hairy in lines. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 20-35 mm long.
    Florets
    Fertile lemma lanceolate; 2-2.5 mm long; hyaline; without keel; 1 -veined. Lemma apex acute. Palea hyaline.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; dorsally compressed.
    Distribution
    Africa: west tropical.
    Reference
    Cynodonteae. WDC.
    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Habit
    Annual up to about 60 cm. high, decumbent at the base
    Ecology
    Roadsides and lawns.

    Distribution

    Native to:

    Burkina, Gambia, Senegal, Sierra Leone

    Perotis scabra Willd. ex Trin. appears in other Kew resources:

    First published in Gram. Unifl. Sesquifl.: 172 (1824)

    Accepted by

    • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Lebrun, J.P. (1973). Énumération des plantes vasculaires du Sénégal: 1-209. Maisons Alfort: Institut d'élevage et de médecine vétérinaire des pays tropicaux.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.

    Literature

    Flora of West Tropical Africa
    • Gram. Unifl. 172 (1824).
    Kew Backbone Distributions
    • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.

    Sources

    Flora of West Tropical Africa
    Flora of West Tropical Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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 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