1. Family: Poaceae Barnhart
    1. Tetrachaete Chiov. ex P.R.Pirotta

      1. This genus is accepted, and its native range is NE. & E. Tropical Africa, S. Arabian Peninsula.

    [GB]

    nonem

    Habit
    Annual. Culms decumbent; 4-25 cm long; wiry. Ligule a ciliate membrane.
    Inflorescences
    Inflorescence composed of racemes; subtended by a spatheole; embraced at base by subtending leaf. Racemes borne along a central axis; in a multilateral false spike; oblong; bearing few fertile spikelets; bearing 2 fertile spikelets on each. Rhachis obsolete; deciduous from axis. Spikelets in pairs. Fertile spikelets sessile; 2 in the cluster.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 3-4 mm long; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 3-4 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes collateral; exceeding apex of florets. Lower glume subulate; 1 length of upper glume. Lower glume surface villous. Upper glume subulate. Upper glume surface villous.
    Florets
    Fertile lemma ovate; gibbous; coriaceous; keeled; 3 -veined. Lemma midvein ciliate. Lemma margins ciliate. Lemma apex acute; awned; 1 -awned. Palea 1 length of lemma; coriaceous; 2 -veined.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; obovoid; isodiametric; trigonous.
    Distribution
    Africa, or Temperate Asia.
    [FTEA]

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

    Habit
    Annual
    Leaves
    Leaf-blades narrow; ligule a ciliate rim
    Inflorescences
    Inflorescence dense, cylindrical, spike-like, the spikelets borne in pairs, the pairs sessile and falling entire at maturity
    Spikelets
    Spikelets all alike; glumes similar, bristle-like, forming an involucre about the pair of florets; lemma much shorter than the glumes, coriaceous, 3-nerved, keeled and slightly gibbous on the back, terminating in a fine straight awn; palea as long as the lemma, coriaceous; stamens 3
    Fruits
    Caryopsis subtriquetrous.

    Distribution

    Native to:

    Eritrea, Ethiopia, Kenya, Oman, Somalia, Tanzania, Yemen

    Tetrachaete Chiov. ex P.R.Pirotta appears in other Kew resources:

    First published in Annuario Reale Ist. Bot. Roma 8: 28 (1903 publ. 1902)

    Literature

    Flora of Tropical East Africa
    • in Ann. Ist. Bot. Roma 8: 28 (1903)

    Sources

    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