1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus geminatus Clayton

        This species is accepted, and its native range is Kenya to Tanzania.

    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Coarse tussocky perennial; culms 90–200 cm. high.
    Leaves
    Leaf-blades flat, up to 120 cm. long, 8 mm. wide, harsh, stiff.
    Inflorescences
    Panicle linear to narrowly lanceolate, 30–40 cm. long, up to 5 cm. wide, diffuse, branchlets and pedicels capillary, the lateral spikelets often solitary but those at the tip of the branchlets borne in contiguous pairs.
    Spikelets
    Spikelets 1.5–1.9 mm. long, dark green; glumes narrowly ovate, subequal, 1/2–2/3 the length of the spikelet, both hyaline, the lower 0.7–1.1 mm. long, the upper 1–1.2 mm. long, acute; anthers 3, 0.7–0.8 mm. long.
    Fruits
    Grain ellipsoid, 0.8 mm. long.
    Habitat
    Sandy river banks and margins of soda flats; 300–800 m.
    Distribution
    K4 K6 K7 T3 not known elsewhere
    [GB]
    Habit
    Perennial; caespitose. Culms erect; 90-200 cm long. Ligule a fringe of hairs. Leaf-blades 60-120 cm long; 8 mm wide; coriaceous; stiff.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear, or lanceolate; effuse; 30-40 cm long; 3-5 cm wide. Panicle branches capillary; glabrous in axils. Spikelets solitary (lateral), or in pairs (distal). Fertile spikelets pedicelled; 2 in the cluster. Pedicels filiform.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.5-1.9 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.5-1.9 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 0.7-1.1 mm long; 0.7-0.9 length of upper glume; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1-1.2 mm long; 0.5-0.66 length of adjacent fertile lemma; hyaline; dark green; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 1.5-1.9 mm long; membranous; dark green; without keel; 1 -veined. Lemma apex acute. Palea 2 -veined. Palea keels approximate.
    Flowers
    Anthers 3; 0.7-0.8 mm long.
    Fruits
    Caryopsis with free soft pericarp; ellipsoid; 0.8 mm long.
    Distribution
    Africa: east tropical.
    Reference
    Eragrostideae. FTEA.

    Images

    Distribution

    Native to:

    Kenya, Tanzania

    Sporobolus geminatus Clayton appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mar 1, 1971 Greenway, P.J. [12753], Kenya K000489882
    Mar 1, 1971 Greenway [13073], Kenya K000365225 holotype
    Ament, J.G. [446], Kenya K000489878
    Klingel [AB3628], Kenya K000489881

    First published in Kew Bull. 25: 247 (1971)

    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.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.

    Literature

    Kew Backbone Distributions
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    Flora of Tropical East Africa
    • W. D. Clayton in Kew Bulletin 25: 247 (1971).

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East 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 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