1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida denudata Pilg.

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

    [FZ]

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

    Habit
    Perennial, c. 50 cm. high, caespitose, with well-developed rhizomes, bearing fascicles of culms.
    Culms
    Culms erect, slender, simple, glabrous, smooth, with a very long uppermost internode, 1-2-noded; nodes glabrous, smooth.
    Leaf sheaths
    Leaf-sheaths glabrous, smooth, usually shorter than the internodes.
    Ligules
    Ligule an obsolete minutely ciliolate rim; auricles of the innovations usually long-barbate, those of the culm-leaves dark-coloured, usually glabrescent; collar glabrous or minutely pubescent.
    Leaf lamina
    Leaf-laminae 10 x 0·1-0·2 cm., flat, acuminate, scabrous or hirtellous above, glabrous, smooth beneath, those of the innovations short, convolute, setaceous, acute.
    Inflorescences
    Panicle 5-12 cm. long (excluding awns), lax, with glabrous, smooth rhachis and branches; branches 2-nate, terete, the lower being 4 cm. long, naked in the lower 1/2, few-flowered, the upper bearing 1-2 spikelets on long filiform, smooth pedicels.
    Glume
    Glumes unequal, 1-nerved, glabrous, smooth, acuminate, smooth on the keels, the inferior 8-8·5 mm. long; the superior 10-11 mm. long.
    Lemma
    Lemma 6·5-7·5 mm. long, glabrous, smooth in the lower part, with rows of minute scabridules towards the apex, having sometimes 1-2 additional awn-like or setiform appendages; callus 0·5 mm. long, obtuse or nearly truncate, shortly barbate; beak or column absent; awns subequal, scaberulous, at first erect, soon divaricately deflexed, the central one 3-3·5 cm. long, more strongly deflexed than the lateral ones which are 2·5-3·0 cm. long; articulation absent.
    [GB]
    Habit
    Perennial; caespitose. Culms erect; 30-50 cm long; 1-2 -noded. Culm-internodes distally glabrous. Ligule a fringe of hairs. Leaf-blades 10 cm long; 1-2 mm wide. Leaf-blade surface scaberulous; rough adaxially. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; 5-12 cm long. Primary panicle branches 2 -nate; 3-4 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 10-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; bearded; truncate, or obtuse.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 10-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; bearded; truncate, or obtuse.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 8-8.5 mm long; 0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 10-11 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.
    Florets
    Fertile lemma elliptic; subterete; 6.5-7.5 mm long; coriaceous; keeled; 3 -veined. Lemma surface scaberulous; rough above and in lines. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; reflexed; with 30-35 mm long limb; persistent. Lateral lemma awns spreading less than principal; 25-30 mm long; shorter than principal. Palea 0.3 length of lemma; without keels.
    Flowers
    Anthers 3.
    Distribution
    Africa: southern tropical.
    Reference
    Aristideae. FZ.

    Distribution

    Native to:

    Malawi, Zambia, Zimbabwe

    Aristida denudata Pilg. appears in other Kew resources:

    First published in R.E.Fries, Wiss. Erg. Schwed. Rhodesia-Kongo-Exp. 1911-1912, 1: 206 (1916)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • 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