1. Family: Poaceae Barnhart
    1. Genus: Eragrostis Wolf
      1. Eragrostis sarmentosa (Thunb.) Trin.

        This species is accepted, and its native range is Chad (Tibesti), S. Tropical & S. Africa, Madagascar.

    [GB]
    Habit
    Perennial; mat forming. Rhizomes short. Stolons present. Culms decumbent; 15-40 cm long; rooting from lower nodes. Leaves cauline. Ligule a fringe of hairs. Leaf-blades 5-10 cm long; 2-4.5 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 2.5-10 cm long. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 6-8 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 3-7 mm long; 1.5-1.7 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas; fragile above; with the distal florets disarticulating separately.
    Fertile
    Spikelets comprising 6-8 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 3-7 mm long; 1.5-1.7 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas; fragile above; with the distal florets disarticulating separately.
    Glume
    Glumes deciduous; similar; shorter than spikelet. Lower glume lanceolate; 1.2 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1.2 mm long; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 1.4 mm long; membranous; grey and purple; keeled; 3 -veined. Lemma lateral veins distinct. Lemma apex acute. Palea keels scaberulous; eciliate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 0.3-0.4 mm long.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid, or ovoid; 0.6 mm long. Embryo 0.4 length of caryopsis.
    Distribution
    Africa: north, southern tropical, south, and western Indian ocean.
    Reference
    Eragrostideae. Gr S Afr 1993.
    [FZ]

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

    Habit
    Mat-forming perennial with rhizomes and often also with long stolons; culms up to 50 cm tall, erect or ascending, often decumbent and rooting at the nodes, unbranched, glabrous at the nodes, eglandular; basal leaf sheaths glabrous, chartaceous, terete (but those of non-flowering culms usually compressed), eglandular, persistent; ligule a line of hairs; leaf laminas 2.5–10 cm × 1.5–4.5 mm, linear to broadly linear, flat, glabrous, eglandular.
    Inflorescences
    Panicle 6–15 cm long, linear, the short distant primary branches appressed to the axis, the spikelets densely contracted about them on pedicels up to 1 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.
    Spikelets
    Spikelets 3–7 × 1.3–1.7 mm, narrowly oblong, laterally compressed, 10–14-flowered, the lemmas disarticulating from below upwards, the rhachilla persistent below but often fragile above; glumes unequal, keeled, lanceolate in profile, glabrous, acute or subacute at the apex, the inferior 0.6–0.8 mm long, reaching to less than halfway along the adjacent lemma, the superior 1.1–1.4 mm long, reaching to just beyond the middle of the adjacent lemma; lemmas 1.3–1.5 mm long, keeled, narrowly ovate in profile, membranous with distinct lateral nerves, ± appressed to the rhachilla, those in opposite rows imbricate and concealing the rhachilla, greyish-green or purple-tinged, glabrous, subacute at the apex; palea persistent, glabrous on the flanks, the keels slender, wingless, scaberulous; anthers 3, 0.2–0.3 mm long.
    Fruits
    Caryopsis 0.5–0.6 mm long, elliptic to ovate.

    Images

    Distribution

    Native to:

    Angola, Botswana, Cape Provinces, Chad, Free State, KwaZulu-Natal, Madagascar, Mozambique, Namibia, Northern Provinces, Zambia, Zimbabwe

    Introduced into:

    Egypt, Palestine

    Eragrostis sarmentosa (Thunb.) Trin. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Kneucker, A. [887], Palestine K000643401
    Meyers, F. [2294], Palestine K000643400

    First published in Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 1: 398 (1830)

    Accepted by

    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
    • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.
    • Bosser, J. (1969). Gramiées des pasturages et des cultures a Madagascar: 1-440. ORSTOM, Paris.

    Literature

    Kew Backbone Distributions
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.
    • Bosser, J. (1969). Gramiées des pasturages et des cultures a Madagascar: 1-440. ORSTOM, Paris.
    • Quézel, P. (1958). Mission Botanique au Tibesti: 1-357. Université d'Alger.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/