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

        This species is accepted, and its native range is South Sudan to S. Tropical Africa.

    [GB]
    Habit
    Annual, or perennial; short-lived. Culms decumbent; slender; 35-100 cm long. Ligule a ciliate membrane. Leaf-blades lanceolate; parallel-sided; 5-10(-20) cm long; 5-10 mm wide. Leaf-blade venation without cross veins. Leaf-blade surface glabrous, or pilose. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; oblong, or ovate; 10-22 cm long. Primary panicle branches ascending, or spreading. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute, or acuminate; 2-3 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute, or acuminate; 2-3 mm long; falling entire.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 0.75-1 length of spikelet; membranous; without keels; 3 -veined. Lower glume lateral veins ribbed. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5(-7) -veined. Upper glume lateral veins ribbed. Upper glume apex acute, or acuminate.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; ribbed; acute, or acuminate. Fertile lemma oblong; dorsally compressed; 1.5-2.5 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: west-central tropical, east tropical, and southern tropical.
    Reference
    Paniceae. FTEA.
    [FZ]

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

    Habit
    Annual or short-lived perennial with slender, decumbent or trailing culms 35–100(300) cm. long.
    Leaf lamina
    Leaf laminae 5–13 cm. long and 5–16 mm. wide, flat, lanceolate, acuminate.
    Inflorescences
    Panicle 6–22 cm. long, broadly ovate, sparsely to moderately branched, the branches fine, spreading at maturity.
    Spikelets
    Spikelets 2–3 mm. long, ovate, glabrous, acute or acuminate; inferior glume 3/4 to as long as the spikelet, 3-nerved; superior glume 5–7-nerved; inferior lemma 5-nerved, male or its palea poorly developed and sterile; superior lemma and palea pallid, glossy.
    [FTEA]

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

    Habit
    Annual or short-lived perennial; culms 35–100 cm. long, slender, decumbent.
    Leaves
    Leaf-blades narrowly lanceolate to lanceolate, 5–10(–20) cm. long, 5–10 mm. wide, straight at the base, cross-veins absent, glabrous or hairy, acuminate.
    Inflorescences
    Panicle ovate to oblong, 10–22 cm. long, sparsely to moderately branched, the branches spreading or ascending.
    Spikelets
    Spikelets ovate, 2–3 mm. long, striate, glabrous, acute to acuminate; lower glume lanceolate, 3/4 to as long as the spikelet, 3-nerved; upper glume ovate, 5(–7)-nerved, acute to acuminate; lower lemma ovate, 5-nerved, sterile, its palea moderately developed; upper lemma pale, shining.
    Habitat
    Forest shade; 1000–3000 m.
    Distribution
    K3 T1 T2 T6 T7 U1 U2 U4

    Images

    Distribution

    Native to:

    Burundi, Kenya, Malawi, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zaïre

    Panicum chionachne Mez appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Stolz, A. [1270], Tanzania K000282487 isotype
    Bidgood, S. [5581], Tanzania K000468843

    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.
    • 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. (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.
    • 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.

    Literature

    Kew Backbone Distributions
    • 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.
    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).
    • Jackson & Wiehe, Ann. list Nyasaland grasses: 50 (1958).
    • Eggeling, Ann. list grasses Ug.: 30 (1947).
    • 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

    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