1. Family: Poaceae Barnhart
    1. Orcuttia Vasey

      1. This genus is accepted, and its native range is California to NW. Mexico.

    [GB]

    nonem

    Habit
    Annual. Culms erect (4), or geniculately ascending (4), or decumbent (1), or prostrate (1); 2-12.5-35 cm long. Lateral branches lacking (2/3), or sparse (1/3). Leaves without demarcation between sheath and blade. Ligule absent. Leaf-blades viscid; aromatic.
    Inflorescences
    Inflorescence composed of racemes. Racemes single; bilateral; bearing few fertile spikelets (1), or many spikelets (4); bearing 6-20 fertile spikelets on each (1/1). Rhachis angular. Spikelet packing broadside to rhachis; crowded (2), or contiguous (1), or lax (1), or distant (2). Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5-9 fertile florets (4), or 10-15 fertile florets, or 16-20 fertile florets (4), or 21-25 fertile florets (3), or 26-40 fertile florets (1); with diminished florets at the apex. Spikelets ovate; laterally compressed; 4-10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 5-9 fertile florets (4), or 10-15 fertile florets, or 16-20 fertile florets (4), or 21-25 fertile florets (3), or 26-40 fertile florets (1); with diminished florets at the apex. Spikelets ovate; laterally compressed; 4-10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; shorter than spikelet. Lower glume lanceolate; 1 length of upper glume; chartaceous; without keels; 5-9 -veined. Lower glume apex dentate (4), or lobed (1); 2 -fid (3), or 3 -fid, or 4-5 -fid (3); setaceously attenuate (1/1). Upper glume lanceolate; 0.5-0.6875-1 length of adjacent fertile lemma; chartaceous; without keels; 5-9 -veined. Upper glume apex dentate (4), or lobed (1); 2 -fid (3), or 3 -fid, or 4-5 -fid (3); setaceously attenuate (1/1).
    Florets
    Fertile lemma oblong; chartaceous; keeled; 15 -veined. Lemma lateral veins prominent. Lemma apex lobed; 5 -fid; incised 0.33-0.415-0.5 of lemma length; mucronate (3), or awned (2); 5 -awned (4/4). Lateral lemma awns subequal to principal (1/1). Palea 0.75-0.95-1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules absent. Anthers 3. Stigmas 2; sparsely hairy.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid (3/4), or oblong (1/4); laterally compressed (4/4); smooth (2/2). Embryo 0.75-0.85-1 length of caryopsis.
    Distribution
    North America.

    Images

    Distribution

    Native to:

    California, Mexico Northwest

    Orcuttia Vasey appears in other Kew resources:

    First published in Bull. Torrey Bot. Club 13: 219 (1886)

    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 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