1. Family: Poaceae Barnhart
    1. Raddia Bertol.

      1. This genus is accepted, and its native range is Trinidad to Brazil.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes short. Culms erect (2/2); 26.6-49.03-100 cm long; without nodal roots. Culm-nodes constricted (2/2). Lateral branches lacking (1/1). Ligule a ciliolate membrane (1), or a ciliate membrane (1), or absent (1). Leaf-blade base with a brief petiole-like connection to sheath (2), or with a false petiole (1). Leaf-blades lanceolate (1), or elliptic (1), or oblong (1), or ovate (1), or triangular (1). Leaf-blade venation with distinct cross veins.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on a specialized culm bearing a single leaf-blade, or on a separate leafless culm. Inflorescence a panicle. Panicle open (2), or spiciform (1). Primary panicle branches not whorled (1), or whorled at lower nodes (2). Sexes segregated; on unisexual branches (1), or bisexual branches (2); with male below. Spikelets solitary, or in pairs (2). Fertile spikelets pedicelled. Male spikelets pedicelled. Pedicels linear (1/1); tip pyriform (1/1).
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 1-7.216-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Male spikelets distinct from female; linear (2), or lanceolate (1), or elliptic (1). Male spikelet glumes absent. Male spikelet lemma muticous (2), or awned (2).
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 1-7.216-12 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; exceeding apex of florets; thinner than fertile lemma, or similar to fertile lemma in texture (2). Lower glume elliptic (1), or oblong (1), or ovate; 1 length of upper glume; membranous (1/1); without keels; 5 -veined. Lower glume surface convex (2), or concave (1); glabrous (1), or puberulous (1), or pubescent (2). Lower glume apex acuminate; muticous (1), or awned (2). Upper glume elliptic (1), or oblong (1), or ovate; 1.1-1.183-1.25 length of adjacent fertile lemma; membranous (1/1); with cartilaginous margins; without keels; 3 -veined. Upper glume lateral veins with cross-veins. Upper glume surface glabrous (1), or puberulous (1), or pubescent. Upper glume apex acuminate (1), or attenuate (2).
    Florets
    Fertile florets bisexual (2), or female (1). Fertile lemma elliptic, or oblong (1), or ovate (1); herbaceous (2), or indurate; without keel; 5 -veined. Lemma surface smooth (1), or punctate (1), or pitted (1). Lemma margins covering most of palea; eciliate (2), or pubescent (1). Lemma apex acute (1/1). Palea 0.9-1.016-1.1 length of lemma; membranous (2), or indurate; 2 -veined (2/2); without keels.
    Flowers
    Lodicules 3. Anthers 3 (1/1). Stigmas 2 (2/2).
    Fruits
    Caryopsis with adherent pericarp (1/1); pitted (1/1). Hilum linear.
    Male
    Male spikelets distinct from female; linear (2), or lanceolate (1), or elliptic (1). Male spikelet glumes absent. Male spikelet lemma muticous (2), or awned (2).
    Distribution
    South America.

    Images

    Distribution

    Native to:

    Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, French Guiana, Trinidad-Tobago, Venezuela

    Raddia Bertol. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Harley, R.M. [55769], Brazil K001077606
    Harley, R.M. [55769], Brazil K001077607

    First published in Opusc. Sci. 3: 410 (1819)

    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 2018. 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 2018. 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