1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum comorense Mez

        This species is accepted, and its native range is Tropical Africa to Swaziland, Comoros, Madagascar.

    [FZ]

    Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

    Habit
    Annual; culms 30–110 cm. long, erect or trailing.
    Leaf lamina
    Leaf laminae 6–15 cm. long and 10–15 mm. wide, lanceolate, membranous, flat, cross-veins present, acuminate.
    Inflorescences
    Panicle 12–30 cm. long, oblong, moderately branched, the secondary branches usually appressed.
    Spikelets
    Spikelets 1.8–2.2 mm. long, oblong, glabrous, obtuse; inferior glume 1/4–1/3 the length of the spikelet, ovate, cuff-like, hyaline, 1-nerved; superior glume 3-nerved, membranous, obtuse; inferior lemma 5-nerved, its palea absent, sterile; superior lemma and palea pallid, glossy, minutely scaberulous, the lemma with a green spot at the apex.
    [FWTA]

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

    Habit
    Forest shade. Weakly ascending annual, 30–60 cm. high, decumbent at the base
    [FTEA]

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

    Habit
    Annual; culms 30–100 cm. or more long, slender, decumbent or erect.
    Leaves
    Leaf-blades spreading, lanceolate, 6–15 cm. long, 10–15 mm. wide, slightly asymmetric at the base, thin, cross-veins numerous, sparsely pilose, acuminate.
    Inflorescences
    Panicle 12–30 cm. long, oblong, spreading or contracted, sparsely branched, the secondary branches usually appressed.
    Spikelets
    Spikelets oblong, 1.8–2.2 mm. long, blunt, glabrous; lower glume cuff-like, 1/4–1/3 as long as the spikelet, hyaline, 1-nerved, obtuse or acute; upper glume as long as the spikelet, membranous, 3-nerved, obtuse; lower lemma 5-nerved, sterile, its palea absent; upper lemma pale, shining, minutely scaberulous with a tiny green spot at the tip.
    Habitat
    Forest shade; 200–800 m.
    Distribution
    T2 T3 T4 T6 T7 T8 U2 throughout tropical Africa
    [GB]
    Habit
    Annual. Culms erect, or decumbent; slender; 30-100 cm long. Ligule a ciliate membrane. Leaf-blade base asymmetrical. Leaf-blades spreading; lanceolate; 6-15 cm long; 10-15 mm wide; membranous. Leaf-blade venation with distinct cross veins. Leaf-blade surface pilose; sparsely hairy. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open, or contracted; oblong; 12-30 cm long; contracted about primary branches. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; obtuse; 1.8-2.2 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; obtuse; 1.8-2.2 mm long; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume oblate; 0.25-0.33 length of spikelet; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse, or acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 3 -veined. 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; membranous; 5 -veined; obtuse. Fertile lemma oblong; dorsally compressed; 1.5-2 mm long; indurate; pallid; shiny; without keel. Lemma surface asperulous; rough above. Lemma margins involute. Lemma apex obtuse; with a shallow excavation and with a green spot. Palea involute; indurate.
    Distribution
    Africa: west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, south, and western Indian ocean.
    Reference
    Paniceae. FTEA.

    Images

    Distribution

    Native to:

    Burundi, Cameroon, Comoros, Ethiopia, Ghana, Madagascar, Malawi, Mozambique, Nigeria, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia

    Panicum comorense Mez appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Thomas, A.S. [Th. 1590], Uganda K000282482
    Schlieben, H.J. [6231], Tanzania K000282483 isotype
    Schlieben, H.J. [6231], Tanzania K000282484 isotype
    Schlieben, H.J. [6231], Tanzania K000282485 isotype

    First published in Bot. Jahrb. Syst. 57: 185 (1921)

    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.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • 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.
    • Clayton, W.D. (1989). Flora Zambesiaca 10(3): 1-231. Royal Botanic Gardens, Kew.
    • Ndabaneze, P. (1989). Catalogue des Graminées du Burundi Lejeunia; Revue de Botanique, n.s., 132: 1-127.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
    • 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.

    Literature

    Flora of West Tropical Africa
    • in Engl., Bot. Jahrb. 57: 185 (1921).
    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.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • 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.
    • Clayton, W.D. (1989). Flora Zambesiaca 10(3): 1-231. Royal Botanic Gardens, Kew.
    • Ndabaneze, P. (1989). Catalogue des Graminées du Burundi Lejeunia; Revue de Botanique, n.s., 132: 1-127.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
    • 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.
    Flora of Tropical East Africa
    • Clayton in Flora of West Tropical Africa, ed. 2, 3: 434 (1972).
    • D.M. Napper, Grasses of Tanganyika: 60 (1965).
    • Jackson & Wiehe, Ann. list Nyasaland grasses: 50 (1958).
    • F. W. Andr., The Flowering Plants of the Sudan 3: 497 (1956).
    • Mez in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 57: 185 (1921).

    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

    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