1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus rigidifolius (Trin.) Mez ex Veldkamp

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms geniculately ascending; 20-40 cm long; 3 -noded. Culm-internodes distally glabrous. Lateral branches lacking. Leaf-sheaths mostly shorter than adjacent culm internode, or subequal to internodes. Ligule a ciliate membrane. Leaf-blades linear; convolute; 3.75-6.5 cm long; 2-4 mm wide; stiff; light green. Leaf-blade surface hirsute; sparsely hairy; hairy adaxially. Leaf-blade margins ciliate; hairy at base. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle; subtended by an inflated leaf-sheath; embraced at base by subtending leaf. Panicle contracted; linear, or lanceolate; 5-10 cm long; 0.4-0.8 cm wide. Primary panicle branches whorled at most nodes; simple; 0.7-1.5 cm long; bearing spikelets almost to the base. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.5-1 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; obtuse; 2-3.75 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; obtuse; 2-3.75 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; similar; exceeding apex of florets. Lower glume ovate; 1-2 mm long; 0.5 length of spikelet; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma 1 -veined. Lemma apex obtuse. Palea keels approximate; winged; narrowly winged.
    Flowers
    Lodicules 2; obovate; veined. Anthers 3; 1.25-2 mm long; yellow.
    Fruits
    Caryopsis with free soft pericarp; ellipsoid; 1-2 mm long; dark brown; obtuse.
    Distribution
    Africa: west-central tropical, northeast tropical, and western Indian ocean.
    Reference
    Eragrostideae. Veldkamp 2001.
    [FZ]

    Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999

    Habit
    Caespitose perennial; culms up to 100 cm tall, erect, unbranched; basal leaf sheaths expanded, chartaceous and pallid or sometimes lightly indurated and yellow, glabrous or pilose, lightly compressed, persistent or sometimes decaying into fibres; leaf laminas 4–26 cm × 1.5–5 mm, soft, involute or folded, rarely flat, glabrous or pilose with tubercle-based hairs on the surface, glabrous or inconspicuously pectinate-ciliate on the margins, acute at the apex.
    Inflorescences
    Panicle 5–13(22) cm long, elliptic to pyramidal; branches in a succession of whorls, sometimes irregularly so, progressively shorter upwards, glabrous, glandular or eglandular, the spikelets loosely spread along the distal 1/2 of the primary branches.
    Spikelets
    Spikelets (2.4)2.9–4.8 mm long, brownish to dark olive-green; inferior glume 1/2–2/3(3/4) the length of the spikelet, elliptic or ovate, 0–1-nerved, glabrous, acute at the apex; superior glume as long as the spikelet or almost so, oblong to narrowly ovate, 1-nerved, glabrous, acute to acuminate at the apex; lemma as long as the spikelet or almost so, oblong to narrowly ovate; anthers 3, (1.2)1.6–2.4 mm long.
    Fruits
    Grain 1.3–2.5 mm long, obovate, laterally compressed.
    [FTEA]

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

    Habit
    Densely caespitose perennial; culms 20–80 cm. high; basal sheaths broad, up to 8 mm. wide, and papery, sometimes yellow and horny, rarely fibrous.
    Leaves
    Leaf-blades filiform or involute, 5–25 cm. long, 1–2.5 mm. wide, the culm leaves sometimes broader and up to 5 mm. wide.
    Inflorescences
    Panicle narrowly ovate to pyramidal, sometimes ± contracted, 4–16 cm. long; primary branches in 4–8 whorls, bare for the lower half of their length.
    Spikelets
    Spikelets 2.5–3.8 mm. long, glabrous, purplish olive; lower glume lanceolate to ovate, 1.1–2.8 mm. long, 1/2–3/4 as long as the spikelet, acute to obtuse; upper glume lanceolate, as long as the spikelet, acute; lemma similar to the upper glume but a little shorter; anthers 3, 1.8–2.5 mm. long.
    Fruits
    Grain ellipsoid, 1.8–2 mm. long.
    Habitat
    Wooded grassland; 1600–2000 m.
    Distribution
    K6 T4 T7 T8 tropical and South Africa, Madagascar, Mauritius
    [FWTA]

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

    Habit
    Densely caespitose perennial, 30–60 cm. high.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Ethiopia, Ghana, Guinea, Kenya, Madagascar, Malawi, Mauritius, Mozambique, Nigeria, Rwanda, Sierra Leone, Tanzania, Zambia, Zaïre, Zimbabwe

    Sporobolus rigidifolius (Trin.) Mez ex Veldkamp appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Wood [1578], KwaZulu-Natal Sporobolus mauritianus K000365203 Unknown type material
    Schlechter, F.R.R. [3044], South Africa Sporobolus mauritianus K000365200 Unknown type material
    Ledermann [2822], Cameroon Sporobolus mauritianus K000365292 holotype
    Buchanan [s.n.], South Africa Sporobolus mauritianus K000365202 Unknown type material
    Rehmann, A. [8254], KwaZulu-Natal Sporobolus mauritianus K000365201 Unknown type material
    Goosens, V. [1403], Congo Sporobolus mauritianus K000365293 Unknown type material
    Harris, T. [437], Mozambique Sporobolus mauritianus K000613873

    First published in Kew Bull. 45: 582 (1990)

    Accepted by

    • Bosser, J. & Renvoize, S.A. (2018). Flore des Mascareignes 203: 1-276. IRD Éditions, MSIRI, RBG-Kew, Paris.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Ndabaneze, P. (1989). Catalogue des Graminées du Burundi Lejeunia; Revue de Botanique, n.s., 132: 1-127.
    • Troupin, G. (ed.) (1988). Flora du Rwanda 4: I-X, 1-651. Musee Royal de l'Afrique Centrale.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

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

    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 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