1. Family: Poaceae Barnhart
    1. Oxyrhachis Pilg.

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

    [GB]

    nonem

    Habit
    Perennial. Culms erect; 20-60 cm long. Ligule a ciliolate membrane. Leaf-blades filiform.
    Inflorescences
    Inflorescence composed of racemes. Racemes single; erect; bilateral. Rhachis fragile at the nodes; subcylindrical and excavated. Spikelet packing abaxial. Rhachis internodes oblong. Rhachis internode tip oblique. Spikelets sunken; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus square; glabrous; base obtuse; attached obliquely.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus square; glabrous; base obtuse; attached obliquely.
    Glume
    Glumes reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; coriaceous; without keels; 6-7 -veined. Lower glume apex obtuse. Upper glume oblong; chartaceous.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; hyaline; 0-2 -veined. Fertile lemma oblong; hyaline; without keel; 2 -veined. Lemma apex truncate. Palea present, or absent or minute; 0-0.2 length of lemma; without keels.
    Distribution
    Africa.
    [FZ]

    Gramineae, T. A. Cope. Flora Zambesiaca 10:4. 2002

    Habit
    Perennial.
    Ligules
    Ligule a very short membrane; leaf laminas involute.
    Inflorescences
    Inflorescence a single terminal or axillary raceme; raceme cylindrical, the spikelets borne singly on alternate sides of the rhachis; internodes semicylindrical, strongly oblique at base and apex.
    Spikelets
    Spikelet sessile, sunk in the internode; callus obtuse; inferior glume coriaceous, broadly convex, smooth, wingless; inferior floret reduced to a hyaline lemma; superior lemma entire and awnless; palea small or suppressed.
    Fruits
    Caryopsis oblong-elliptic, dorsally compressed.
    [FTEA]

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

    Habit
    Perennial
    Leaves
    Leaf-blades involute; ligule a very short membrane
    Inflorescences
    Inflorescence a single spike, borne terminally on the culm; spike cylindrical, the spikelets borne singly; internodes cylindrical, strongly oblique at the top and bottom
    Spikelets
    Spikelet sessile, sunk in the internode; callus obtuse; lower glume coriaceous, broadly convex, smooth, wingless; lower floret reduced to a hyaline lemma; upper lemma entire and awnless; palea small or suppressed
    Fruits
    Caryopsis oblong-elliptic, dorsally compressed.

    Images

    Distribution

    Native to:

    Cameroon, Cape Provinces, KwaZulu-Natal, Madagascar, Mozambique, Nigeria, Sierra Leone, Tanzania, Zambia

    Oxyrhachis Pilg. appears in other Kew resources:

    First published in Notizbl. Bot. Gart. Berlin-Dahlem 11: 655 (1932)

    Literature

    Flora of West Tropical Africa
    • in Not. Bot. Gart. Berl. 11: 655 (1932).
    Flora Zambesiaca
    • in Notizbl. Bot. Gart. Berlin-Dahlem 11: 655 (1932).
    Flora of Tropical East Africa
    • in N.B.G.B. 11: 655 (1932)

    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