1. Family: Poaceae Barnhart
    1. Genus: Ptilagrostis Griseb.
      1. Ptilagrostis kingii (Bol.) Barkworth

        This species is accepted, and its native range is Central & E. California.

    [GB]
    Habit
    Perennial; caespitose. Culms erect; slender; 20-40 cm long. Leaves mostly basal. Ligule an eciliate membrane; 1 mm long. Leaf-blades flexuous; filiform; involute; 1 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear; 4-9 cm long. Primary panicle branches appressed, or ascending. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 4 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 4 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume oblong; 3.5 mm long; 0.9 length of upper glume; chartaceous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume oblong; 4 mm long; 1.1 length of adjacent fertile lemma; chartaceous; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex obtuse.
    Florets
    Fertile lemma elliptic; subterete; 3-3.5 mm long; coriaceous; without keel. Lemma surface pubescent. Lemma margins convolute; covering most of palea. Lemma apex awned; 1 -awned. Principal lemma awn curved; 12 mm long overall; tardily deciduous; limb puberulous. Palea coriaceous; 2 -veined; without keels.
    Distribution
    North America: southwest USA.
    Reference
    Stipeae. Man US Gr 1994.

    Distribution

    Native to:

    California

    Ptilagrostis kingii (Bol.) Barkworth appears in other Kew resources:

    First published in Syst. Bot. 8: 417 (1983)

    Not accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Stipa kingii.]

    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