1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum calvum Stapf

        This species is accepted, and its native range is Ivory Coast to Ethiopia and Tanzania.

    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Note
    Closely allied to the preceding (Panicum monticola).
    [GB]
    Habit
    Perennial. Culms rambling; slender; 20-150 cm long; rooting from lower nodes. Ligule a ciliate membrane. Leaf-blade base cordate. Leaf-blades lanceolate, or ovate; 6-12 cm long; 5-25 mm wide; membranous. Leaf-blade venation without cross veins, or with distinct cross veins. Leaf-blade surface glabrous, or pilose. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; oblong, or pyramidal; (10-)15-20(-30) cm long. Primary panicle branches spreading. Panicle branches capillary. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 2-2.5 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 2-2.5 mm long; falling entire.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 0.33-0.66 length of spikelet; membranous; without keels; 1-3 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; (5-)7 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma oblong; dorsally compressed; 1.5-2 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: west tropical, west-central tropical, northeast tropical, and east tropical.
    Reference
    Paniceae. FTEA.
    [FTEA]

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

    Habit
    Perennial; culms 20–150 cm. long, slender, rambling, rooting at the lower nodes.
    Leaves
    Leaf-blades lanceolate to narrowly ovate, 6–12 cm. long, 5–25 mm. wide, cordate at the base, thin, cross-veins usually present, glabrous or hairy, acuminate.
    Inflorescences
    Panicle oblong or pyramidal, (10–)15–20(–30) cm. long, finely and sparsely branched, spreading.
    Spikelets
    Spikelets narrowly ovate, 2–2.5 mm. long, glabrous; lower glume lanceolate, 1/3–2/3 the length of the spikelet, 1–3-nerved; upper glume (5–)7-nerved, acute; lower lemma similar to the upper glume, sterile, its palea absent; upper lemma pale, shining.
    Habitat
    Forest shade and margins; 1000–2900 m.
    Distribution
    K3 K4 T2 T3 T4 T7 U2 U3 U4 throughout tropical Africa

    Images

    Distribution

    Native to:

    Burundi, Cameroon, Ethiopia, Ivory Coast, Kenya, Rwanda, Sudan, Tanzania, Uganda, Zaïre

    Panicum calvum Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1996 Marsden, J. [41], Cameroon K000182385
    Jan 1, 1996 Marsden, J. [45], Cameroon K000182386
    Jan 1, 1961 Maitland, T.D. [104], Cameroon K000182390
    Jan 1, 1961 Maitland, T.D. [104], Cameroon K000182391
    Jan 1, 1961 Maitland, T.D. [327], Cameroon K000182393
    Jan 1, 1961 Migeod, F. [60], Cameroon K000182387
    Jan 1, 1932 Maitland, T.D. [850], Cameroon K000182392
    Scott Elliot, G.F. [7686], Uganda K000282436 syntype
    Scott Elliot, G.F. [7647], Uganda K000282435 syntype
    Battiscombe, E. [685], Kenya K000282434 syntype
    Battiscombe, E. [685], Kenya K000282433 syntype
    Dümmer, R.A. [3727], Uganda K000282437 syntype

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 9: 723 (1920)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Ndabaneze, P. (1989). Catalogue des Graminées du Burundi Lejeunia; Revue de Botanique, n.s., 132: 1-127.
    • Troupin, G. (ed.) (1988). Flora du Rwanda 4: I-X, 1-651. Musee Royal de l'Afrique Centrale.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Lewalle, J. (1970). Liste floristique et répartition altitudinale de la flore du Burundi occidental: 1-84. Université officielle de Bujumbura.

    Literature

    Flora of West Tropical Africa
    • Aké Assi, Contrib. 2: 284.
    • in F.T.A. 9: 723 (1920)
    Kew Backbone Distributions
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Troupin, G. (ed.) (1988). Flora du Rwanda 4: I-X, 1-651. Musee Royal de l'Afrique Centrale.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Lewalle, J. (1970). Liste floristique et répartition altitudinale de la flore du Burundi occidental: 1-84. Université officielle de Bujumbura.
    • Robyns, W. (1934). Flore Agrostologique du Congo Belge et du Ruanda-Urundi 2: 9-386. Goemaere, Bruxelles.
    Flora of Tropical East Africa
    • Clayton in Flora of West Tropical Africa, ed. 2, 3: 433 (1972).
    • 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).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 38 (1958).
    • Robyns, Flore des Spermatophytes du Parc National Albert 3: 106 (1955).
    • Eggeling, Ann. list grasses Ug.: 30 (1947).
    • Robyns, Fl. Agrost. Congo Belge 2: 209 (1934).
    • Stapf in Flora of Tropical Africa 9: 723 (1920).

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of West Tropical Africa
    Flora of West Tropical 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 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