1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum robynsii A.Camus

        This species is accepted, and its native range is DR Congo to E. Tropical Africa.

    [GB]
    Habit
    Annual. Culms decumbent, or rambling; slender; 25-100 cm long. Ligule a ciliate membrane. Leaf-blades lanceolate, or ovate; tapering towards sheath; 5-10 cm long; 5-15 mm wide; membranous. Leaf-blade venation with distinct cross veins. Leaf-blade surface scaberulous; glabrous, or pilose; sparsely hairy. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 3-6; borne along a central axis; paucilateral; 2-5 cm long. Central inflorescence axis 12-20 cm long. Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels unequal.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; obtuse, or acute; 2.2-2.5 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; obtuse, or acute; 2.2-2.5 mm long; falling entire.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.66-0.75 length of spikelet; membranous; without keels; 3 -veined. Lower glume surface scabrous. Lower glume apex acute; mucronate. Upper glume ovate; 1 length of spikelet; membranous; without keels; 3-7 -veined. Upper glume surface scabrous. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; hyaline; 3-5 -veined; scabrous; obtuse. Fertile lemma oblong; dorsally compressed; 2 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex apiculate. Palea involute; indurate.
    Distribution
    Africa: west-central tropical, east tropical, and southern tropical.
    Reference
    Paniceae. FTEA.
    [FTEA]

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

    Habit
    Annual; culms 25–100 cm. long, slender, decumbent or scrambling.
    Leaves
    Leaf-blades ovate-lanceolate, 5–10 cm. long, 5–15 mm. wide, tapering at the base, thin, cross-veins present, scaberulous or sparsely pilose, acuminate.
    Inflorescences
    Inflorescence composed of slender racemes scattered along an axis 12–20 cm. long; racemes 2–5 cm. long, bearing paired spikelets.
    Spikelets
    Spikelets ovate-elliptic, 2.2–2.5 mm. long, covered with minute spicules, blunt or acute; lower glume ovate, 2/3–3/4 the length of the spikelet, clasping at the base, 3-nerved, apiculate; upper glume faintly 3–7-nerved, obtuse; lower lemma hyaline, faintly 3–5-nerved, blunt, sterile, its palea poorly developed or absent; upper lemma pale, shining.
    Habitat
    Forest shade; 800–1770 m.
    Distribution
    K5 K6 T1 U2 U4

    Images

    Distribution

    Native to:

    Kenya, Tanzania, Uganda, Zaïre

    Panicum robynsii A.Camus appears in other Kew resources:

    First published in Bull. Mus. Natl. Hist. Nat., sér. 2, 5: 336 (1933)

    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
    • D.M. Napper, Grasses of Tanganyika: 60 (1965).
    • K.W. Harker & D.M. Napper, An Illustrated Guide to the Grasses of Uganda p. 45 (1960).
    • Robyns, Flore des Spermatophytes du Parc National Albert 3: 109 (1955).
    • Eggeling, Ann. list grasses Ug.: 33 (1947).
    • Robyns, Fl. Agrost. Congo Belge 2: 220 (1934).
    • A. Camus in Bull. Mus. Hist. Nat. Paris, sér. 2, 5: 336 (1933).

    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 2019. 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 2019. 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