1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida mutabilis Trin. & Rupr.

        This species is accepted, and its native range is Sahara to NW. India and Tanzania.

    [FTEA]

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

    Habit
    Loosely tufted annual; culms (10–)30–70 cm. high, glabrous.
    Leaves
    Leaf-blades linear, 6–14 cm. long, narrow or convolute; sheaths glabrous, those at the base of the plant laterally compressed, the auricles bearded or not.
    Inflorescences
    Panicle narrowly ovate, 12–20 cm. long, loose or ± contracted, the spikelets congested in narrow spikes at the tips of the main branches.
    Spikelets
    Spikelets grey or pallid; glumes typically subequal, lanceolate, scaberulous on the keel and sometimes also on the flanks, the lower 4–5 mm. long, the upper 6–7 mm. long, acute or apiculate, less often with a short awn-point; lemma terete, 4–5 mm. long, scabrid upwards; callus linear, 1–1.5 mm. long, finely obtuse at the tip; column 2–5 mm. long, articulated just below the branching point of the awns; awns 10–30 mm. long, slender, parallel or divergent.
    Habitat
    Acacia, Commiphora deciduous bushland and open semi-desert bushland; 100–1400 m.
    Distribution
    K1 K2 K3 K4 K6 K7 T2 T3 T6 U1 from Mauritania to India
    [GB]
    Habit
    Annual; caespitose. Culms (10-)30-70 cm long. Culm-internodes distally glabrous. Leaf-sheath oral hairs lacking, or bearded. Ligule a fringe of hairs. Leaf-blades flat, or convolute; 6-14 cm long; 1-2 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open, or contracted; lanceolate, or ovate; 10-20 cm long; with spikelets clustered towards branch tips. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1-1.5 mm long; pilose; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1-1.5 mm long; pilose; obtuse.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 4-5 mm long; 0.7-1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 6-7 mm long; 1.4-1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume muticous, or mucronate.
    Florets
    Fertile lemma lanceolate; subterete; 4-5 mm long; coriaceous; without keel; 3 -veined. Lemma surface scabrous; rough above. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 10-30 mm long limb; with twisted column; deciduous; abscissing from top of column; limb scabrous. Column of lemma awn 2-5 mm long. Lateral lemma awns 10-30 mm long; subequal to principal. Palea 0.2 length of lemma; without keels.
    Flowers
    Anthers 3.
    Distribution
    Africa: north, west tropical, west-central tropical, northeast tropical, and east tropical. Asia-temperate: western Asia and Arabia. Asia-tropical: India.
    Reference
    Aristideae. FTEA.
    [FWTA]

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

    Habit
    Annual, 10–60 cm. high
    Note
    Rather variable, and several varieties have been described (see Henrard l.c.).

    Images

    Distribution

    Native to:

    Algeria, Benin, Burkina, Cameroon, Chad, Djibouti, Egypt, Eritrea, Ethiopia, Ghana, Gulf States, India, Kenya, Libya, Mali, Mauritania, Morocco, Niger, Nigeria, Oman, Pakistan, Saudi Arabia, Senegal, Sinai, Somalia, Sudan, Tanzania, Uganda, West Himalaya, Western Sahara, Yemen

    Aristida mutabilis Trin. & Rupr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1966 Leippert [5475], Tanzania K000366779 Unknown type material
    Trott, A.C. [66], Saudi Arabia K000906055
    Schweinfurth, G. [2517], Egypt K000244962
    Kotschy [103], Ethiopia K000366840
    Kotschy [103], Ethiopia K000366841
    Kotschy [54], Sudan K000366845
    Schimper, W. [2198], Ethiopia K000366843
    Schimper, W. [2132], Ethiopia K000366844
    Leprieur [s.n.], Senegal K000366823 Unknown type material
    Leprieur [s.n.], Senegal K000366824 Unknown type material
    Schweinfurth, G.A. [94] K000906056 isotype
    Gilles [119], Ethiopia K000366842
    Edgeworth, M.P. [s.n.] Aristida articulata K000906043

    First published in Sp. Gram. Stipac.: 150 (1842)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Cope, T.A., Knees, S.G. & Miller, A.G. (2007). Flora of the Arabian peninsula and Socotra 5(1): 1-387. Edinburgh University Press.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • 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.
    • Wood, J.R.I. (1997). A Handbook of the Yemen Flora: 1-434. 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.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.
    • Audru, J., Cesar, J. & Lebrun, J.-P. (1993). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 2(2): 433-968. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.
    • Ghazanfar, S.A. (1992). An Annotated Catalogue of the Vascular Plants of Oman and their Vernacular names Scripta Botanica Belgica 2: 1-153.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    • Lebrun, J.P. (1973). Énumération des plantes vasculaires du Sénégal: 1-209. Maisons Alfort: Institut d'élevage et de médecine vétérinaire des pays tropicaux.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.
    • Gillet, H. (1968). Le peuplement végétal du massif de l'Ennedi (Tchad) Mémoires du Muséum National d'Histoire Naturelle. Serie B. Botanique 17: 1-206.

    Literature

    Flora of West Tropical Africa
    • incl. var. nigritiana (Hack.) Bourreil in Taxon 18: 518 (1969)
    • Berhaut, Fl. Sén. ed. 2, 407
    • De Miré & Gillet in J. Agric. Trop. 3: 727.
    • A. Chev. in Rev. Bot. Appliq. 14: 47
    • Henrard in Med. Rijks Herb. 58: 186
    • Sp. Gram. Stip. 150 (1842)
    • incl. var. senegalensis Trin. & Rupr. Sp. Gram. Stip. 151 (1842)
    Kew Backbone Distributions
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Cope, T.A., Knees, S.G. & Miller, A.G. (2007). Flora of the Arabian peninsula and Socotra 5(1): 1-387. Edinburgh University Press.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • 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.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.
    • Audru, J., Cesar, J. & Lebrun, J.-P. (1993). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 2(2): 433-968. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.
    • Gillet, H. (1968). Le peuplement végétal du massif de l'Ennedi (Tchad) Mémoires du Muséum National d'Histoire Naturelle. Serie B. Botanique 17: 1-206.
    Flora of Tropical East Africa
    • D.M. Napper, Grasses of Tanganyika: 23 (1965).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 33 (1958).
    • F. W. Andr., The Flowering Plants of the Sudan 3: 397 (1956).
    • Trin. & Rupr., Sp. Gram. Stip.: 150 (1842).

    Sources

    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