1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum callosum Hochst. ex A.Rich.

        This species is accepted, and its native range is Cameroon to Ethiopia.

    [GB]
    Habit
    Annual. Culms erect, or geniculately ascending; 50-100 cm long; 3 -noded. Lateral branches lacking. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule a ciliolate membrane; 1 mm long. Leaf-blades tapering towards sheath; 30-45 cm long; 6-10 mm wide. Leaf-blade surface glabrous, or pubescent; sparsely hairy. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; lanceolate; 15-40 cm long. Primary panicle branches profusely divided; 15-30 cm long. Panicle branches capillary. Spikelets in pairs. Fertile spikelets pedicelled. Pedicels 6-8 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; acuminate; 6 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; acuminate; 6 mm long; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75 length of spikelet; membranous; without keels; 7 -veined. Lower glume apex acuminate; mucronate. Upper glume oblong; 1 length of spikelet; membranous; without keels; 9 -veined. Upper glume apex acuminate and laterally pinched.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 9 -veined; acuminate. Fertile lemma elliptic; dorsally compressed; 4 mm long; indurate; dark brown; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: west-central tropical and northeast tropical.
    Reference
    Paniceae. FTA 1993.

    Images

    Distribution

    Native to:

    Cameroon, Ethiopia, Sudan

    Panicum callosum Hochst. ex A.Rich. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Schimper [1713], Ethiopia K000256706 holotype
    Schimper [1713], Ethiopia K000256707 holotype
    Schimper [1713], Ethiopia K000256708 holotype

    First published in Tent. Fl. Abyss. 2: 374 (1850)

    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.

    Literature

    Kew Backbone Distributions
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • 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.

    Sources

    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