1. Family: Poaceae Barnhart
    1. Rhizocephalus Boiss.

      1. This genus is accepted, and its native range is Caucasus to W. & Central Asia.

    [GB]

    nonem

    Habit
    Annual. Culms 0.5-2 cm long. Ligule an eciliate membrane.
    Inflorescences
    Inflorescence a panicle; subtended by an inflated leaf-sheath; embraced at base by subtending leaf. Panicle capitate. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-6.5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-6.5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes connate along margins below; persistent; shorter than spikelet. Lower glume obovate; 1 length of upper glume; coriaceous; 1-keeled; 3 -veined. Lower glume surface pubescent. Lower glume apex cuspidate. Upper glume obovate; 0.6-0.7 length of adjacent fertile lemma; coriaceous; 1-keeled; 3 -veined. Upper glume surface pubescent; with clavate hairs. Upper glume apex cuspidate.
    Florets
    Fertile lemma oblong; coriaceous; much thinner on margins; keeled; 5 -veined. Lemma surface scaberulous; pubescent; with clavate hairs. Lemma apex attenuate; awned; 1 -awned. Palea 0.8 length of lemma; 2 -veined.
    Flowers
    Lodicules absent. Anthers 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; trigonous; apex rostrate. Embryo 0.25-0.33 length of caryopsis. Hilum punctiform.
    Distribution
    Temperate Asia.

    Images

    Distribution

    Native to:

    Afghanistan, Iran, Iraq, Lebanon-Syria, Palestine, Transcaucasus, Turkey, Uzbekistan

    Rhizocephalus Boiss. appears in other Kew resources:

    First published in Diagn. Pl. Orient. 5: 68 (1844)

    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