1. Family: Poaceae Barnhart
    1. Pogonarthria Stapf

      1. This genus is accepted, and its native range is Tropical & S. Africa, Madagacar.

    [FZ]

    Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999

    Inflorescences
    Inflorescence composed of numerous short stiff slender racemes of crowded spikelets arranged along an elongated central axis; racemes deciduous at maturity, the spikelets biseriate, juvenile at first and completing their growth after emergence.
    Spikelets
    Spikelets several-flowered, laterally compressed, disarticulating between the florets or the lemmas falling leaving the persistent paleas on the rhachilla; rhachilla internodes terete or rarely clavate; glumes 1-nerved, membranous, keeled, unequal, shorter than the lemmas, acute to acuminate; lemmas 3-nerved with short lateral nerves, membranous, narrow, divergent, keeled, glabrous, acuminate to shortly awned.
    Fruits
    Caryopsis elliptic to linear, obtusely trigonous in section.
    [GB]

    nonem

    Habit
    Annual (2), or perennial (2). Culms erect (2), or geniculately ascending (1), or decumbent (1); robust (1/1); 13-51.25-150 cm long. Ligule a fringe of hairs.
    Inflorescences
    Inflorescence composed of racemes. Racemes borne along a central axis; ascending (3), or spreading (3), or deflexed (1); unilateral. Rhachis deciduous from axis; angular. Spikelet packing broadside to rhachis; crowded. Spikelets ascending; solitary. Fertile spikelets sessile (1), or pedicelled (3). Pedicels oblong (2/3), or cuneate (1/3).
    Spikelets
    Spikelets comprising 3 fertile florets (1), or 4 fertile florets (3), or 5 fertile florets, or 6 fertile florets (2), or 7-10 fertile florets (1); with diminished florets at the apex. Spikelets elliptic (2), or cuneate (2); laterally compressed; 3.3-6.137-10 mm long; breaking up at maturity; rhachilla deciduous (3), or rhachilla persistent (1); disarticulating below each fertile floret (2/3), or between fertile florets but the lowest falling with glumes attached (1/3); retaining paleas (1/1). Rhachilla internodes brief up to lowest fertile floret (3), or elongated below proximal fertile floret (1); pubescent.
    Fertile
    Spikelets comprising 3 fertile florets (1), or 4 fertile florets (3), or 5 fertile florets, or 6 fertile florets (2), or 7-10 fertile florets (1); with diminished florets at the apex. Spikelets elliptic (2), or cuneate (2); laterally compressed; 3.3-6.137-10 mm long; breaking up at maturity; rhachilla deciduous (3), or rhachilla persistent (1); disarticulating below each fertile floret (2/3), or between fertile florets but the lowest falling with glumes attached (1/3); retaining paleas (1/1). Rhachilla internodes brief up to lowest fertile floret (3), or elongated below proximal fertile floret (1); pubescent.
    Glume
    Glumes persistent (3), or deciduous with pedicel attached (1); shorter than spikelet. Lower glume lanceolate; 0.5-0.7312-1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface smooth (3), or scabrous (1). Lower glume apex acute (1), or acuminate (1), or attenuate (2). Upper glume lanceolate; 0.6-0.8375-1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume surface smooth (3), or asperulous (1). Upper glume apex acute (1), or acuminate (1), or attenuate (2).
    Florets
    Fertile lemma lanceolate (2), or ovate (2); membranous; keeled; 3 -veined. Lemma midvein scaberulous. Lemma surface smooth (1), or asperulous (3). Lemma margins eciliate (3), or ciliolate (1). Lemma apex acuminate (2), or attenuate (2); muticous (2), or awned (2); 1 -awned (2/2). Palea 0.9 length of lemma; 2 -veined (2/2). Palea keels smooth (1), or scaberulous (3); eciliate (3), or ciliolate (1). Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; fleshy. Anthers 3 (1/1).
    Fruits
    Caryopsis with adherent pericarp; lanceolate (1/2), or ellipsoid (1/2); isodiametric (1/2), or laterally compressed (1/2); trigonous (2/2). Embryo 0.3-0.35-0.4 length of caryopsis.
    Distribution
    Africa.
    [FTEA]

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

    Habit
    Tufted annuals or perennials
    Leaves
    Leaf-blades linear, flat or loosely convolute; ligule short, densely ciliate
    Inflorescences
    Inflorescence linear-oblong to pyramidal, composed of numerous short stiff slender racemes of crowded spikelets arranged along a central axis; racemes deciduous at maturity
    Spikelets
    Spikelets several-flowered, laterally compressed, biseriate, disarticulating between the florets or the lemmas falling leaving the persistent paleas on the rhachilla, shortly bearded with stiff hairs beneath the florets at the tip of each rhachilla-internode; glumes 1-nerved, keeled, unequal, shorter than the lemmas, membranous, acuminate; lemmas 3-nerved, with the lateral nerves 1/2–3/4 as long as the lemma, keeled, lanceolate, membranous, glabrous, acuminate or acuminate-aristate
    Fruits
    Caryopsis elliptic-oblong to narrowly lanceolate, obtusely trigonous in cross-section.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Burundi, Cape Provinces, Caprivi Strip, Eritrea, Ethiopia, Free State, Ghana, Ivory Coast, Kenya, KwaZulu-Natal, Lesotho, Madagascar, Malawi, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zimbabwe

    Pogonarthria Stapf appears in other Kew resources:

    First published in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 7: 316 (1898)

    Literature

    Flora of West Tropical Africa
    • in Fl. Capensis 7: 316 (1898).
    Flora Zambesiaca
    • in Hooker’s Icon. Pl. 27: t. 2610 (1899).
    • in F.C. 7: 316 (1898)
    Flora of Tropical East Africa
    • in Fl. Cap. 7: 589 (1900)
    • in Hook., Ic. Pl. 27, t. 2610 (1899)
    • in Fl. Cap. 7: 316 (1898)

    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

    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 2018. 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 2018. 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