1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida nemorivaga Henrard

        This species is accepted, and its native range is S. Tropical & S. Africa.

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 50-100 cm long; 4 -noded. Culm-internodes distally glabrous. Ligule a fringe of hairs. Leaf-blades curled; 10-20 cm long; 1 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins cartilaginous; scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open, or contracted; elliptic; interrupted; 10-20 cm long; with spikelets clustered towards branch tips. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 8-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; bearded; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 8-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; bearded; obtuse.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 5.5-8 mm long; 0.7-0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex emarginate, or obtuse; mucronate. Upper glume lanceolate; 8-11 mm long; 1-1.1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex emarginate, or truncate; mucronate.
    Florets
    Fertile lemma elliptic; subterete; 7-11 mm long; coriaceous; keeled; 3 -veined. Lemma midvein without distinctive roughness, or scaberulous. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 9-15 mm long limb; persistent. Lateral lemma awns 7-13 mm long; shorter than principal. Palea 0.1 length of lemma; without keels.
    Flowers
    Anthers 3.
    Distribution
    Africa: southern tropical.
    Reference
    Aristideae. FZ.
    [FZ]

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

    Habit
    Perennial, up to 1 m. high, densely caespitose.
    Culms
    Culms erect, simple or branched, terete or slightly compressed, glabrous or slightly scaberulous below the nodes, c. 4-noded; nodes glabrous.
    Leaf sheaths
    Leaf-sheaths tight, glabrous or scaberulous, the lower slightly compressed.
    Ligules
    Ligule a ciliolate rim; auricles barbate or slightly pubescent; collar minutely pubescent.
    Leaf lamina
    Leaf-laminae usually up to 20 cm., scarcely 1 mm. wide when expanded, coarse, involute or flat at the base, curling when old, scabrid or hirtellous above, glabrous or scaberulous beneath, with thickened scabrous margins.
    Inflorescences
    Panicle up to 20 cm. long, erect, lax or contracted but much interrupted, with an angular or triquetrous scabrous axis; branches remote, naked in the lower part, scabrid.
    Spikelets
    Spikelets pallid or yellowish-green, sometimes tinged with purple, densely congested towards the ends of the branchlets.
    Glume
    Glumes unequal, lanceolate, 1-nerved; the inferior 5·5-8 mm. long, scaberulous on the keel, subobtuse or emarginate or slightly 2-fid, with very obtuse lateral lobes, mucronate from the sinus; the superior 8-11 mm. long, smooth, truncate at the apex and shortly awned or 2-lobed, with a mucro from the sinus.
    Lemma
    Lemma 7-11 mm. long, slightly compressed, smooth or scaberulous on the keel; callus 1 mm. long, subobtuse, densely barbate; beak or column absent; awns scabrous, subequal, the central 9-15 mm. long, the lateral ones 7-13 mm. long; articulation absent.
    Cytology
    2n = 55.

    Images

    Distribution

    Native to:

    Angola, Botswana, Cape Provinces, Free State, KwaZulu-Natal, Northern Provinces, Zambia, Zimbabwe

    Aristida nemorivaga Henrard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Gossweiler, J. [2710], Angola Aristida canescens K000366808 Unknown type material
    Cronje, S. [7643], South Africa Aristida canescens K000366720 Unknown type material
    Cronje, S. [7643], South Africa Aristida canescens K000366721 isotype
    Pearson, H. W. [2634], Angola Aristida canescens K000366807

    First published in Meded. Rijks-Herb. 54A: 376 (1927)

    Accepted by

    • 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.

    Literature

    Kew Backbone Distributions
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.

    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 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