1. Family: Poaceae Barnhart
    1. Streptochaeta Schrad. ex Nees

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

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (2), or short (1); pachymorph (1/1). Culms erect (1/2), or scandent (1/2); 35-63.33-105 cm long; without nodal roots (1/1), or rooting from lower nodes (1/1). Lateral branches lacking (2/2), or sparse (2/2). Leaf-sheath auricles absent, or erect (1). Ligule a fringe of hairs. Leaf-blade base without a false petiole (1), or with a brief petiole-like connection to sheath (2). Leaf-blades lanceolate (2), or elliptic (1), or ovate (1). Leaf-blade venation without cross veins (1), or with distinct cross veins (2).
    Inflorescences
    Inflorescence composed of racemes; terminal (2), or terminal and axillary (1). Racemes single; erect (2), or ascending (1); paucilateral; bearing 5 fertile spikelets on each (1), or 6-9 fertile spikelets on each (2), or 10-19 fertile spikelets on each (1), or 42-100 fertile spikelets on each (1). Rhachis angular. Spikelets appressed (1/1); solitary. Fertile spikelets sessile (1), or pedicelled (2).
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate (2), or cuneate (1); subterete; 10-14.83-23 mm long; falling entire. Spikelet callus pubescent (1/1); base truncate (1/1).
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate (2), or cuneate (1); subterete; 10-14.83-23 mm long; falling entire. Spikelet callus pubescent (1/1); base truncate (1/1).
    Glume
    Glumes several; whorled; shorter than spikelet (1/1); thinner than fertile lemma (1), or similar to fertile lemma in texture (2). Lower glume oblong (2/2); membranous (1/1); without keels (1/1). Lower glume apex entire (2), or lobed (1); 2 -fid (1/1); truncate (1/1).
    Florets
    Fertile lemma lanceolate; herbaceous (1), or coriaceous (2), or indurate (1); without keel; 7-10 -veined (1), or 11-12 -veined (2), or 13 -veined (1). Lemma apex acuminate (1), or attenuate (2); awned; 1 -awned. Principal lemma awn coiled. Palea reflexed at apex; not rolled (1), or tightly convolute around flower (2); 0.6-0.675-0.75 length of lemma; coriaceous; 8-10 -veined (1/2); without keels. Palea apex divided to base.
    Flowers
    Lodicules 3; scarious (2), or coriaceous (1); obtuse (1), or acute. Anthers 6. Stigmas 3; plumose (2), or papillose (1).
    Fruits
    Caryopsis with adherent pericarp; linear (2/2), or lanceolate (1/2); biconvex (2/2). Hilum linear (1/1); 0.7 length of caryopsis.
    Distribution
    North America (2), or South America.

    Images

    Distribution

    Native to:

    Argentina Northeast, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Ecuador, Guatemala, Honduras, Mexico Gulf, Mexico Southeast, Mexico Southwest, Nicaragua, Panamá, Paraguay, Peru, Trinidad-Tobago, Venezuela

    Streptochaeta Schrad. ex Nees appears in other Kew resources:

    First published in C.F.P.von Martius, Fl. Bras. Enum. Pl. 2: 536 (1829)

    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