1. Family: Poaceae Barnhart
    1. Genus: Chasmopodium Stapf
      1. Chasmopodium afzelii (Hack.) Stapf

        This species is accepted, and its native range is W. Tropical Africa.

    [GB]
    Habit
    Annual. Culms 200-400 cm long; with prop roots. Lateral branches ample. Ligule a fringe of hairs. Leaf-blades 25-50 cm long; 10-45 mm wide. Leaf-blade surface smooth.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; smoothly terete; 5-13 cm long. Rhachis fragile at the nodes; semiterete; 3-4 mm wide; glabrous on margins, or ciliate on margins. Rhachis internodes cuneate; 5 mm long; 0.75 length of fertile spikelet. Rhachis internode tip transverse; crateriform; with simple rim. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels cuneate; flattened; glabrous, or ciliate; tip rectangular.
    Spikelets
    Companion sterile spikelets well-developed; male; oblong; asymmetrical; as long as fertile; separately deciduous. Companion sterile spikelet glumes coriaceous; winged on keels; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes. Apical sterile spikelets male; 1 in number (10-25 mm long). Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 6-7 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base truncate; with central peg; attached transversely.
    Sterile
    Companion sterile spikelets well-developed; male; oblong; asymmetrical; as long as fertile; separately deciduous. Companion sterile spikelet glumes coriaceous; winged on keels; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes. Apical sterile spikelets male; 1 in number (10-25 mm long).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 6-7 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base truncate; with central peg; attached transversely.
    Glume
    Glumes dissimilar; reaching apex of florets; firmer than fertile lemma. Lower glume oblong; 1 length of spikelet; coriaceous; yellow; 2-keeled; keeled above; winged on keel; winged narrowly; 20-35 -veined. Lower glume intercarinal veins distinct. Lower glume apex entire, or dentate; 2 -fid; obtuse. Upper glume oblong; coriaceous; 1-keeled; keeled above; winged on keel; winged near apex; 7-9 -veined. Upper glume apex obtuse.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret oblong; hyaline; 3 -veined; ciliolate on margins. Fertile lemma oblong; hyaline; without keel; 3 -veined. Lemma apex obtuse. Palea hyaline; 2 -veined.
    Distribution
    Africa: west tropical.
    Reference
    Andropogoneae. WDC.

    Images

    Distribution

    Native to:

    Sierra Leone, Togo

    Chasmopodium afzelii (Hack.) Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 1934 Dawe, M.T. [686], Sierra Leone K000290850

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 9: 77 (1917)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.

    Literature

    Kew Backbone Distributions
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.

    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 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