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

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

    [FZ]

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

    Habit
    Perennial, up to 1.5 m. high, fairly robust, caespitose.
    Culms
    Culms erect, glaucous, glabrous, 3-6-noded; nodes glabrous.
    Leaf sheaths
    Leaf-sheaths tight, ciliolate along the margins.
    Ligules
    Ligule obsolete, minutely ciliate; auricles and the collar glabrous or barbate.
    Leaf lamina
    Leaf-laminae up to 35 x 0.1-0.2 cm., linear, convolute towards the apex, scabrous above, glabrous and prominently ribbed beneath.
    Inflorescences
    Panicle up to 40 x 5 cm., dense, more or less contracted, much branched, with a terete or subangular axis; branches 5-11 cm. long, solitary, erect or nearly appressed, branchlets appressed, scabrous.
    Spikelets
    Spikelets congested, very shortly pedicelled, pallid.
    Glume
    Glumes slightly unequal, lanceolate to linear-lanceolate, awned; the inferior 6-7 mm. long, 3-nerved, scaberulous in the upper part, scabrous on the nerves and on the keel, abruptly narrowed into a scabrous awn c. 1.5-2 mm. long; the superior c. 10 mm. long, with a smooth keel, distinctly 2-dentate at the apex with an awn, c. 2 mm. long, from the sinus.
    Lemma
    Lemma 6-7 mm. long, finely punctulate, scaberulous towards the apex; callus c. 1-1.5 mm. long, obtuse or subobtuse, long-barbate; column very short, c. 1.5 mm. long, slightly twisted; awns subequal, 10-20 mm. long; articulation between apex of the column of the lemma and the base of the awns.
    [GB]
    Habit
    Perennial; caespitose. Culms 70-150 cm long; 3-6 -noded. Culm-internodes distally glabrous. Ligule a fringe of hairs. Leaf-blades 20-35 cm long; 1-2 mm wide. Leaf-blade surface ribbed; scaberulous; rough abaxially.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 20-40 cm long; 2-5 cm wide. Primary panicle branches appressed; 1 -nate; 5-11 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1-1.5 mm long; bearded; obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1-1.5 mm long; bearded; obtuse.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 6-7 mm long; 0.6-0.7 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scaberulous. Lower glume surface asperulous. Lower glume apex acute; awned; 1 -awned. Lower glume awn 1.5-2 mm long. Upper glume lanceolate; 10 mm long; 1.4-1.7 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex dentate; 2 -fid; awned; 1 -awned. Upper glume awn 2 mm long.
    Florets
    Fertile lemma elliptic; subterete; 6-7 mm long; coriaceous; without keel; 3 -veined. Lemma surface punctate. Lemma margins involute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 10-20 mm long limb; with a straight or slightly twisted column; deciduous; abscissing from top of column. Column of lemma awn 1.5 mm long. Lateral lemma awns 10-20 mm long; subequal to principal. Palea 0.2 length of lemma; without keels.
    Flowers
    Anthers 3.
    Distribution
    Africa: southern tropical and south.
    Reference
    Aristideae. FZ.

    Images

    Distribution

    Native to:

    Angola, Botswana, Caprivi Strip, Namibia, Northern Provinces, Zambia, Zimbabwe

    Aristida pilgeri Henrard appears in other Kew resources:

    First published in Meded. Rijks-Herb. 54A: 443 (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.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. 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.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. 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

    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/