1. Family: Poaceae Barnhart
    1. Genus: Cenchrus L.
      1. Cenchrus monostigma (Pilg.) Morrone

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

    [GB]
    Habit
    Perennial; caespitose. Culms geniculately ascending; 50-100 cm long. Ligule a fringe of hairs. Leaf-blades 7-35 cm long; 3-8(-10) mm wide.
    Inflorescences
    Inflorescence a panicle. Peduncle pubescent above. Panicle spiciform; linear; straight, or curved; 5-10 cm long; 0.6-0.9 cm wide. Primary panicle branches accrescent to a central axis; with lateral stumps on axis (0.5-1mm). Panicle axis with rounded ribs; pilose; bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Involucre composed of bristles; oblong; 5-7 mm long; base obtuse. Involucral bristles deciduous with the fertile spikelets; numerous; 20-40 in principal whorl; with longest bristle scarcely emergent, or with one conspicuously longer bristle; 6-12 mm long; terete; flexible; glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4.5-6 mm long; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4.5-6 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.5-1.5 mm long; 0.1-0.25 length of spikelet; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex emarginate, or obtuse. Upper glume oblong; 1-2 mm long; 0.25-0.33 length of spikelet; hyaline; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex emarginate, or obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret ovate; 1 length of spikelet; membranous; 5 -veined; scaberulous; rough above; obtuse, or acute. Fertile lemma lanceolate; 4-6 mm long; membranous; without keel; 3-5 -veined. Lemma margins flat. Lemma apex acute, or acuminate. Palea membranous.
    Flowers
    Lodicules absent. Anthers 3; 2.5 mm long; anther tip smooth.
    Distribution
    Africa: west tropical and west-central tropical.
    Reference
    Paniceae. FTA.
    [FWTA]

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

    Habit
    Densely tufted perennial up to 1 m. high.

    Images

    Distribution

    Native to:

    Cameroon, Gulf of Guinea Is., Nigeria, Sierra Leone

    Cenchrus monostigma (Pilg.) Morrone appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 2001 Cheek, M. [9705], Cameroon Pennisetum monostigma K000107880
    Jun 1, 2001 Etuge, M. [4129], Cameroon Pennisetum monostigma K000107882
    Jun 1, 2001 Onana, J.-M. [586], Cameroon Pennisetum monostigma K000107881
    May 1, 1932 Maitland, T.D. [881], Cameroon Pennisetum monostigma K000281165
    Maitland, T.D. [881], Cameroon Pennisetum monostigma K000281166
    Jacques-Félix, H. [2862], Cameroon Pennisetum monostigma K000281164 isotype

    First published in Ann. Bot. (Oxford) 106: 128 (2010)

    Literature

    Kew Backbone Distributions
    • 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

    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