1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida diminuta (Mez) C.E.Hubb.

        This species is accepted, and its native range is Mali, Cameroon to Chad and S. Tropical Africa.

    [FTEA]

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

    Habit
    Slender tufted annual 15–30 cm. high.
    Leaves
    Leaf-blades narrow, cauline, 2–7 cm. long.
    Inflorescences
    Panicle 4–10 cm. long, delicate and loose or somewhat contracted, with capillary branches.
    Spikelets
    Spikelets 2.5–3 mm. long, the glumes tinged with red, glabrous, shortly mucronate; lower glume lanceolate, 2–2.5 mm. long, scabrid on the keel; upper glume narrowly lanceolate, as long as the spikelet; lemma 1.5–1.7 mm. long, scaberulous; callus very short, broadly obtuse; awn unbranched, 7–10 mm. long, without articulation, gracefully recurved.
    Habitat
    Forming colonies on seasonally waterlogged soils; 250–1000 m.
    Distribution
    T6 T8
    [FZ]

    Gramineae, E. Launert. Flora Zambesiaca 10:1. 1971

    Habit
    Annual, 10-30 cm. high, caespitose.
    Culms
    Culms erect, slender, simple or branched at the base, glabrous, smooth 1-2-noded; nodes glabrous, smooth.
    Leaf sheaths
    Leaf-sheaths glabrous, smooth, or minutely pubescent, striate, keeled.
    Ligules
    Ligule a short-ciliate rim; auricles pubescent, with some long hairs; collar glabrous or minutely pubescent.
    Leaf lamina
    Leaf-laminae 2-7 (up to 10) cm. long, up to 1 mm. wide, very narrow, involute, scabrous and with long scattered hairs above, glabrous, smooth beneath.
    Inflorescences
    Panicle usually 4-10 cm. long, usually more than 1/2 as long as the whole plant, lax, effuse, sometimes contracted; axis scabrid; branches capillary, scaberulous, naked below, the lower 2-3-nate.
    Spikelets
    Spikelets 2·5-3 mm. long, dark purple or greenish tinged with purple.
    Glume
    Glumes unequal, glabrous, smooth, or scaberulous towards the apex, keeled, scabrous on the keel, mucronate or shortly awned; the inferior 2-2·5 mm. long, lanceolate, nearly 3-nerved; the superior 2·5-3 mm. long, narrowly lanceolate, 1-nerved.
    Lemma
    Lemma 1·5-1·7 mm. long, purplish or greenish, scaberulous towards the apex; callus 0·2-0·3 mm. long, broadly obtuse, shortly barbate; beak or column absent; awn 7-10 mm. long, delicate, scabrous, slightly recurved (the lateral awns absent); articulation absent.
    [FWTA]

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

    Habit
    Delicate annual 15–30 cm. high.
    [GB]
    Habit
    Annual; caespitose. Culms 15-30 cm long. Culm-internodes distally glabrous. Leaves cauline. Ligule a fringe of hairs. Leaf-blades 2-7 cm long; 0.5-1 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; loose, or effuse; 4-10 cm long. Panicle branches capillary. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2.5-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus brief; pilose; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2.5-3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus brief; pilose; obtuse.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 2-2.5 mm long; 0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute; muticous, or mucronate. Upper glume lanceolate; 2.5-3 mm long; 1.7-1.8 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute; muticous, or mucronate.
    Florets
    Fertile lemma elliptic; subterete; 1.5-1.7 mm long; coriaceous; without keel; 3 -veined. Lemma surface scaberulous. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 1 -awned. Principal lemma awn curved; 7-10 mm long overall. Palea 0.1 length of lemma; without keels.
    Flowers
    Lodicules 2. Anthers 3.
    Distribution
    Africa: west tropical, west-central tropical, east tropical, and southern tropical. Asia-tropical: Malesia.
    Reference
    Aristideae. FTEA.

    Images

    Distribution

    Native to:

    Burundi, Cameroon, Chad, Malawi, Mali, Mozambique, Tanzania, Zambia, Zaïre, Zimbabwe

    Aristida diminuta (Mez) C.E.Hubb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1997 Fitt, R. H. [165], Zimbabwe K000366802 syntype
    Jan 1, 1996 Holmes, E. C. [4931], Zimbabwe K000366801
    Jan 1, 1996 Adam, J.C. [11427], Mali K000392198
    Buchanan, J. [561], Malawi K000366800 isotype

    First published in Kew Bull. 4: 480 (1949 publ. 1950)

    Accepted by

    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Ndabaneze, P. (1989). Catalogue des Graminées du Burundi Lejeunia; Revue de Botanique, n.s., 132: 1-127.
    • 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.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.

    Literature

    Flora of West Tropical Africa
    • in Kew Bull. 4: 480 (1949).
    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.
    • Ndabaneze, P. (1989). Catalogue des Graminées du Burundi Lejeunia; Revue de Botanique, n.s., 132: 1-127.
    • 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.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.
    Flora of Tropical East Africa
    • D.M. Napper, Grasses of Tanganyika: 24 (1965).
    • Jackson & Wiehe, Ann. list Nyasaland grasses: 29 (1958).
    • C. E. Hubbard in Kew Bulletin 4: 480 (1949).

    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