1. Family: Poaceae Barnhart
    1. Triplasis P.Beauv.

      1. This genus is accepted, and its native range is N. & Central America.

    [GB]

    nonem

    Habit
    Annual (1), or perennial (1). Culms erect (1), or geniculately ascending (1); 30-56.25-75 cm long. Ligule a fringe of hairs. Leaf-blade midrib indistinct (1/1).
    Inflorescences
    Inflorescence a panicle. Panicle open. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets linear; laterally compressed; 6-8.575-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes glabrous (1), or pubescent (1). Floret callus pubescent.
    Fertile
    Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets linear; laterally compressed; 6-8.575-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes glabrous (1), or pubescent (1). Floret callus pubescent.
    Glume
    Glumes persistent; shorter than spikelet. Lower glume linear; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex entire (1), or dentate (1); 2 -fid (1/1); acute (1/1). Upper glume lanceolate; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume apex entire (1), or dentate (1); 2 -fid (1/1); acute (1/1).
    Florets
    Fertile lemma oblong; membranous; keeled; 3 -veined. Lemma midvein pubescent. Lemma margins pubescent. Lemma apex dentate (1), or lobed (1); 2 -fid; incised 0.5 of lemma length; mucronate (1), or awned; 1 -awned. Principal lemma awn from a sinus; limb pubescent. Palea 0.75 length of lemma. Palea keels pubescent, or with a crest of hairs.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; laterally compressed; plano-convex.
    Cleistogene
    Cleistogenes present; in lower sheaths.
    Distribution
    North America, or South America (1).

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Colorado, Connecticut, Costa Rica, Delaware, Florida, Georgia, Honduras, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Masachusettes, Mexico Southeast, Michigan, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Virginia, Wisconsin

    Triplasis P.Beauv. appears in other Kew resources:

    First published in Ess. Agrostogr.: 81 (1812)

    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 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