1. Family: Poaceae Barnhart
    1. Genus: Eleusine Gaertn.
      1. Eleusine jaegeri Pilg.

        This species is accepted, and its native range is Ethiopia to E. Tropical Africa.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Rhizomes short. Basal innovations flabellate. Culms erect; 40-130 cm long. Culm-internodes elliptical in section. Lateral branches fastigiate. Leaf-sheaths keeled. Ligule a ciliate membrane; 0.15-0.25 mm long. Leaf-blades conduplicate; 20-45 cm long; 4-7 mm wide; stiff; light green. Leaf-blade surface glabrous. Leaf-blade margins cartilaginous; scabrous; glabrous. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 2-13; digitate; distant; spreading, or ascending; unilateral; 4-17 cm long. Central inflorescence axis 3-8 cm long. Rhachis wingless; flattened. Spikelet packing broadside to rhachis; regular; 2 -rowed. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-9 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 6-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 3-9 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 6-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2-2.8 mm long; 0.6-0.7 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume oblong; 3.1-4.5 mm long; 0.8-0.9 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma oblong in profile; 3.6-5.2 mm long; membranous; dark green; 3 -veined. Lemma midvein simple. Lemma surface scaberulous; rough above. Lemma margins eciliate, or pilose (obscurely). Lemma apex acute. Palea 0.9-1 length of lemma; 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy.
    Fruits
    Caryopsis with free soft pericarp; ellipsoid, or oblong; dorsally compressed; trigonous; 1.6-1.7 mm long; black; rugose.
    Distribution
    Africa: northeast tropical and east tropical.
    Reference
    Eragrostideae. FTEA.
    [FTEA]

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

    Habit
    Coarse perennial tussock grass from a short ascending rhizome.
    Culms
    Culms 40–130 cm. high, robust, erect, fasciculately branching to form thick bunches of whitish overlapping leaf-sheaths at the lower nodes.
    Leaves
    Leaf-blades tightly folded, 20–45 cm. long, 4–7 mm. wide, pale green, tough, glabrous, the margins firm and conspicuously scabrid, tapering to a fine tip; ligule 0.15–0.25 mm. long, a yellow-brown rim with a contrasting white ciliate fringe.
    Inflorescences
    Inflorescence composed of 2–13 spikes clustered towards the top of the culm, the upper spikes often subdigitate; spikes 4–17 cm. long, slender, loosely ascending to horizontally spreading.
    Spikelets
    Spikelets 3–9-flowered, narrowly oblong, 6–10 mm. long, dark olive-grey; glumes 1-nerved, the lower narrowly lanceolate in profile, 2–2.8 mm. long, subacute, the upper narrowly lanceolate-oblong in profile, 3.1–4.5 mm. long, acute or subacute; lemmas narrowly oblong in profile, 3.6–5.2 mm. long, glabrous or obscurely appressed pilose along the margins, minutely scabrid towards the subacute tip.
    Fruits
    Grain elliptic-oblong, 1.6–1.7 mm. long, flat on the hilar side, minutely and closely rugulose.
    Figures
    Fig. 72.
    Habitat
    Upland grassland and clearings in forest and bushland, locally dominant; 1800–3300 m.
    Distribution
    K3 K4 K5 K6 T2 U3 not known elsewhere

    Images

    Distribution

    Native to:

    Ethiopia, Kenya, Tanzania, Uganda

    Eleusine jaegeri Pilg. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 1970 Edwards, D.C. [61], Kenya K000489806
    Dec 1, 1964 Greenway, P.J. [7612], Tanzania K000365331 holotype
    Dec 1, 1964 Greenway, P.J. [7612], Tanzania K000748242 holotype
    Greenway, P.J. [13581], Kenya K000489801
    Gillett, J.B. [19021], Kenya K000489790
    Glover, P.E. [940], Kenya K000489803
    Glover, P.E. [1435], Kenya K000489877
    Glover, P.E. [1088], Kenya K000489795
    Bogdan, A. [AB5506], Kenya K000489799
    Bogdan, A. [AB1997], Kenya K000489797
    Bogdan, A. [AB2653], Kenya K000489798
    Robertson, S.A. [2144], Kenya K000489788
    Webster, M.M. [K92], Kenya K000489792
    Lucas, G.L.L. [72], Kenya K000489808
    Turner, A. [1573], Kenya K000489805
    Fries, R.E. [423], Kenya K000489800
    Hitchcock, A.S. [25059], Kenya K000489791
    Dowson, W.J. [524], Kenya K000489794
    Battiscombe, E. [K1233], Kenya K000489787
    Lye, K.A. [K1119], Kenya K000489789
    Edwards, D.C. [2831], Kenya K000489804
    Edwards, D.C. [1676], Kenya K000489807
    Edwards, D.C. [1692], Kenya K000489802
    Barney, R.W. [1024], Kenya K000489809
    Evans, P.I.B. [1334], Kenya K000489786
    Greesteranus, R.A.M. [5522], Kenya K000489796

    First published in Bot. Jahrb. Syst. 43: 93 (1909)

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

    Literature

    Kew Backbone Distributions
    • 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.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    Flora of Tropical East Africa
    • Phillips in Kew Bulletin 27: 267 (1972).
    • D.M. Napper, Grasses of Tanganyika: 39 (1965).
    • K.W. Harker & D.M. Napper, An Illustrated Guide to the Grasses of Uganda p. 28 (1960).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 23 (1958).
    • Edwards & Bogdan, Imp. grassl. pl. Kenya: 32 (1951).
    • Pilg. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 43: 93 (1909).

    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