1. Family: Poaceae Barnhart
    1. Genus: Stereochlaena Hack.
      1. Stereochlaena tridentata Clayton

        This species is accepted, and its native range is Tanzania.

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths pubescent. Culms 60-80 cm long. Ligule a ciliolate membrane. Leaf-blades 5-15 cm long; 3-6 mm wide. Leaf-blade surface pubescent. Leaf-blade margins cartilaginous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 4-7; digitate; unilateral; 6-7 cm long. Rhachis narrowly winged; angular; 1 mm wide; ciliate on margins. Spikelets appressed; in pairs. Fertile spikelets pedicelled; 2 in the cluster.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 4-4.5 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 4-4.5 mm long; falling entire.
    Glume
    Glumes one the lower absent or obscure; shorter than spikelet; thinner than fertile lemma. Upper glume ovate; 0.33-0.66 length of spikelet; membranous; without keels. Upper glume apex acuminate; awned; 1 -awned.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 2-keeled (keels coriaceous); 7 -veined; ribbed; flat across back; scabrous; rough on veins; dentate; 3 -fid; awned. Awn of lower sterile floret 1-3 mm long. Fertile lemma elliptic; 4-4.5 mm long; chartaceous; much thinner on margins; without keel. Lemma margins flat; covering most of palea. Lemma apex acute. Palea chartaceous.
    Distribution
    Africa: east tropical.
    Reference
    Paniceae. FTEA.
    [FTEA]

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

    Habit
    Tufted perennial, the basal sheaths silky pubescent; culms 60–80 cm. high.
    Leaves
    Leaf-blades flat, 5–15 cm. long, 3–6 mm. wide, softly pubescent.
    Inflorescences
    Inflorescence of 4–7 racemes, each 6–7 cm. long, the rhachis-margins ciliate.
    Spikelets
    Spikelets oblong-elliptic, 4–4.5 mm. long; lower glume suppressed; upper glume 1/3–2/3 as long as the spikelet, shortly awned; lower lemma flat across the back, 7-nerved, strongly laterally keeled, the keels coriaceous and forming a tooth near the tip, hence the latter asymmetrically tridentate with a central awn 1–3 mm. long.
    Habitat
    Brachystegia wooded grassland; 1100–1400 m.
    Distribution
    not known elsewhere T7

    Images

    Distribution

    Native to:

    Tanzania

    Stereochlaena tridentata Clayton appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    College of African Wildlife Management [4450], Tanzania K000281573 holotype

    First published in Kew Bull. 33: 296 (1978)

    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.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.

    Literature

    Kew Backbone Distributions
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    Flora of Tropical East Africa
    • W.D. Clayton in Kew Bulletin 33: 296 (1978).

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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