1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida hordeacea Kunth

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

    [FTEA]

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

    Habit
    Erect annual 10–90 cm. high; culm-internodes pubescent.
    Leaves
    Leaf-blades 5–20 cm. long and up to 5 mm. wide, flat or folded, keeled, scabrid, abruptly narrowed at the tip; sheaths compressed and keeled.
    Inflorescences
    Panicle spike-like, linear-oblong to subovate, typically 5–15 cm. long, dense and bushy or ± interrupted at the base.
    Spikelets
    Spikelets green or purple; glumes lanceolate, scaberulous on the keel, glabrous or hispidulous on the flanks, the lower 5–8 mm. long with an awn 2.5–5 mm. long, the upper 6–9 mm. long with an awn 1–4 mm. long; lemma terete, 5–7 mm. long, scabrid with lines of hooked prickles, furrowed ventrally, articulated at the apex; callus narrowly oblong, 0.5–0.8 mm. long, obtuse; awns without a column, subequal, 2.5–3.5 cm. long.
    Figures
    Fig. 48.
    Habitat
    Dry or shallow soils in wooded grassland, deciduous bushland or old farm land, occasionally on swamp edges; 400–1600 m.
    Distribution
    K2 T1 T4 T5 T6 T7 T8 U1 throughout tropical Africa
    [FZ]

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

    Habit
    Annual, 10-90 cm. high, caespitose.
    Culms
    Culms erect or ascending, branched from the base and lower nodes, compressed, densely pubescent, sometimes becoming more or less glabrous, 3-4-noded; nodes pubescent.
    Leaf sheaths
    Leaf-sheaths keeled, pubescent.
    Ligules
    Ligule shortly ciliate; auricles shortly barbate; collar glabrous.
    Leaf lamina
    Leaf-laminae c. 30 x 1 cm., more or less glaucous, flat or folded, scabrous on both surfaces or hirtellous above, becoming glabrous beneath.
    Inflorescences
    Panicle 25 x 1-3 cm., exserted, very dense, linear-oblong or subovate, spiciform or interrupted at the base, with a densely pubescent axis; branches solitary but much divided from the base.
    Spikelets
    Spikelets linear-lanceolate, greenish or pallid, fascicled; pedicels pubescent.
    Glume
    Glumes lanceolate, keeled, shortly and densely pubescent, awned or 2-fid at the apex with an awn from the sinus; the inferior 5-9 mm. long, with an awn 2·5-5 mm. long; the superior 6-10 mm. long, with an awn 1-4 mm. long.
    Lemma
    Lemma 5-7·5 mm. long, narrowly linear, fusiform, with many longitudinal rows of spiny hairs, ventrally furrowed, with a distinct articulation between the apex of the lemma and the base of the awns; column absent; callus c. 0·5 mm. long, obtuse, densely barbate; awns 15-50 mm. long, subequal, erect, scabrous.
    Cytology
    2n = 22.
    [GB]
    Habit
    Annual. Culms erect; 10-90 cm long. Culm-internodes distally pubescent. Culm-nodes pubescent. Leaf-sheaths keeled. Ligule a fringe of hairs. Leaf-blades flat, or conduplicate; 5-20 cm long; 2-5 mm wide. Leaf-blade surface scabrous; rough on both sides.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; oblong; continuous, or interrupted; 5-15 cm long. Panicle branches pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels pubescent.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5-0.8 mm long; pubescent; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5-0.8 mm long; pubescent; obtuse.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 5-8 mm long; 0.8 length of upper glume; scarious; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume surface glabrous, or hispidulous. Lower glume apex dentate; acute; awned; 1 -awned. Lower glume awn 2.5-5 mm long. Upper glume lanceolate; 6-9 mm long; 1.2-1.3 length of adjacent fertile lemma; scarious; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume surface glabrous, or hispidulous. Upper glume apex dentate; 2 -fid; awned; 1 -awned. Upper glume awn 1-4 mm long.
    Florets
    Fertile lemma elliptic; subterete; 5-7 mm long; coriaceous; without keel; 3 -veined. Lemma surface scabrous (hooked prickles); rough in lines. Lemma margins involute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 25-35 mm long limb; deciduous; abscissing from top of lemma. Lateral lemma awns 25-35 mm long; subequal to principal. Palea 0.1 length of lemma; without keels.
    Flowers
    Anthers 3.
    Distribution
    Africa: west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, and south.
    Reference
    Aristideae. FTEA.
    [FWTA]

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

    Habit
    Annual, 10–45 cm. high.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Chad, Congo, Eritrea, Ethiopia, Ghana, Ivory Coast, Kenya, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Senegal, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Aristida hordeacea Kunth appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 27, 2008 Crawford, F. [83], Namibia K000450375
    Oct 27, 2008 Crawford, F. [183], Namibia K000450377
    Bidgood, S. [5289], Tanzania K000190519
    Brain, C.K. [5827], Zimbabwe K000366799

    First published in Révis. Gramin. 2: t. 173 (1831)

    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.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • 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.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Aké Assi, L. (2002). Flore de la Côte-d'Ivoire: catalogue systématique, biogéographie et écologie. II Boissiera 58: 1-401.
    • 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.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
    • 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.
    • 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.
    • 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.
    • 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
    • Berhaut, Fl. Sén. ed. 2, 393
    • De Miré & Gillet in J. Agric. Trop. 3: 727.
    • Henrard in Med. Rijks Herb. 58: 140, incl. var. longiaristata Henr.
    • Rev. Gram. 2: 517, t. 173 (1831)
    Kew Backbone Distributions
    • 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.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Aké Assi, L. (2002). Flore de la Côte-d'Ivoire: catalogue systématique, biogéographie et écologie. II Boissiera 58: 1-401.
    • 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.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
    • 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.
    • 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).
    • K.W. Harker & D.M. Napper, An Illustrated Guide to the Grasses of Uganda p. 16 (1960).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 33 (1958).
    • Jackson & Wiehe, Ann. list Nyasaland grasses: 29 (1958).
    • F. W. Andr., The Flowering Plants of the Sudan 3: 395 (1956).
    • Eggeling, Ann. list grasses Ug.: 4 (1947).
    • Kunth, Rév. Gram. 2: 517, t. 173 (1831).

    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

    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/