1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum superatum Hack.

        This species is accepted, and its native range is SE. & S. Brazil.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms erect, or geniculately ascending; 20-120 cm long. Culm-internodes thin-walled; 4-6 cm long; distally glabrous, or hispid. Culm-nodes constricted; glabrous, or bearded. Lateral branches sparse; arising from lower culm, or upper culm. Leaf-sheaths 4-10 cm long; striately veined; glabrous on surface, or hirsute; with tubercle-based hairs; outer margin hairy. Ligule a ciliate membrane; 0.6-1.5 mm long. Collar glabrous, or pubescent. Leaf-blade base broadly rounded, or cordate. Leaf-blades lanceolate; 4.5-16 cm long; 6-15 mm wide. Leaf-blade surface glabrous, or hispid. Leaf-blade margins ciliate. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Peduncle hirsute above. Panicle contracted; linear, or lanceolate; 5-8 cm long; 0.8-5 cm wide. Primary panicle branches appressed. Panicle axis hispid. Panicle branches eglandular; pubescent; pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels flexuous; scabrous; villous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 2.4-3.3 mm long; 0.9-1.2 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 2.4-3.3 mm long; 0.9-1.2 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; clasping; 1.6-2.4 mm long; 0.5-0.75 length of spikelet; membranous; without keels; 3-5 -veined. Lower glume apex acute. Upper glume elliptic; 0.9 length of spikelet; membranous; without keels; 9-11 -veined. Upper glume surface glabrous to pubescent. Upper glume apex obtuse.
    Florets
    Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 7-8 -veined; glabrous, or pubescent; obtuse. Palea of lower sterile floret 0.2 length of lemma. Fertile lemma elliptic; dorsally compressed; 1.9-2.5 mm long; 0.9-1.1 mm wide; indurate; without keel. Lemma surface smooth. Lemma margins involute. Lemma apex apiculate; scabrous. Palea involute; indurate.
    Flowers
    Anthers 3; 0.3-1 mm long.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 1.7 mm long. Embryo 0.33 length of caryopsis. Hilum punctiform.
    Distribution
    South America: Brazil.
    Reference
    Paniceae. Zuloaga 1994.

    Images

    Distribution

    Native to:

    Brazil South, Brazil Southeast

    Panicum superatum Hack. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Clayton, W.D. [4285], Brazil K001102280
    Reitz [7962], Brazil K001102274
    Davidse, G. [11319], Brazil K001102273
    Chase, A. [8299], Brazil K001102391
    Kummrow, R. [2596], Brazil K001102277
    Smith, L.B. [15456], Brazil K001102275
    Smith, L.B. [14008], Brazil K001102276
    Ribas, O.S. [5731], Brazil K001102279
    Cordeiro, J. [2134], Brazil K001102278
    Glaziou, A.F.M. [17904], Brazil K000309285 isotype

    First published in Oesterr. Bot. Z. 51: 427 (1901)

    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.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.

    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