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  1. Family: Poaceae Barnhart
    1. Gouinia E.Fourn. ex Benth. & Hook.f.

      1. This genus is accepted, and its native range is Mexico to Tropical America.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (8), or short (2). Culms erect (7/8), or decumbent (1/8), or scandent (1/8); slender (1/1); 30-109.2-300 cm long. Lateral branches lacking (4/5), or ample (1/5). Ligule an eciliate membrane (6), or a ciliolate membrane (4), or a fringe of hairs (1). Leaf-blades linear, or lanceolate (1).
    Inflorescences
    Inflorescence composed of racemes. Racemes borne along a central axis; ascending (5), or spreading (4), or drooping (2), or deflexed (2); unilateral. Rhachis angular. Spikelet packing contiguous (2), or lax (6), or distant (2). Raceme-bases brief (5), or filiform (5). Spikelets appressed (4/7), or ascending (1/7), or spreading (2/7), or deflexed (1/7); solitary. Fertile spikelets sessile (1), or pedicelled (9). Pedicels filiform (1/6), or linear (5/6).
    Spikelets
    Spikelets comprising 2 fertile florets (3), or 3-4 fertile florets (6), or 5 fertile florets (5), or 6 fertile florets (1); with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-10.43-18 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus brief (5), or evident (5); pubescent (4/5), or bearded (1/5).
    Fertile
    Spikelets comprising 2 fertile florets (3), or 3-4 fertile florets (6), or 5 fertile florets (5), or 6 fertile florets (1); with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-10.43-18 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus brief (5), or evident (5); pubescent (4/5), or bearded (1/5).
    Glume
    Glumes persistent; shorter than spikelet. Lower glume lanceolate; 0.66-0.797-1 length of upper glume; membranous; 1-keeled; 1 -veined (8), or 2 -veined (4), or 3 -veined (6), or 4 -veined (3), or 5 -veined (2). Lower glume lateral veins absent (2), or distinct (9). Lower glume apex obtuse (1), or acute (6), or acuminate (3); muticous (8), or mucronate (2), or awned (1). Upper glume lanceolate (1), or elliptic (3), or ovate (6); 0.6-0.775-1.2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined (3), or 3-4 -veined (4), or 5 -veined (7), or 6-7 -veined (4). Upper glume apex emarginate (1), or obtuse (4), or acute (4), or acuminate (3); muticous (7), or mucronate (3), or awned (1); 1 -awned (1/1).
    Florets
    Fertile lemma lanceolate; membranous; keeled; 3 -veined, or 4-5 -veined (2), or 6-7 -veined (1). Lemma midvein eciliate (1), or ciliate (9). Lemma lateral veins excurrent (1/1), or extending close to apex (1/1). Lemma surface glabrous (9), or pilose (1); hairy between veins (1/1). Lemma margins eciliate (3), or ciliate (7). Lemma apex entire (4), or dentate (6); 2 -fid (6/6); acuminate (4/4); awned; 1 -awned. Principal lemma awn apical (4), or from a sinus (6); straight, or curved (1). Palea 0.75-0.9375-1 length of lemma; 2 -veined (1/1). Palea keels smooth (9), or scabrous (1); eciliate (5), or ciliate (5). Palea surface glabrous (8), or pubescent (1), or pilose (1). Palea apex muticous (8), or awned (2). Apical sterile florets 1 in number; barren; lanceolate. Apical sterile lemmas muticous (1), or awned (9).
    Flowers
    Lodicules 2 (3/3); fleshy (3/3). Anthers 3.
    Fruits
    Caryopsis with adherent pericarp (1/1); ellipsoid (1/1).
    Distribution
    North America (5), or South America (7).

    Images

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest, Bolivia, Brazil Northeast, Brazil West-Central, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Haiti, Honduras, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Nicaragua, Paraguay, Peru, Venezuela

    Accepted Species

    Synonyms

    Other Data

    Gouinia E.Fourn. ex Benth. & Hook.f. appears in other Kew resources:

    Bibliography

    First published in Gen. Pl. 3: 1178 (1883)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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