1. Family: Poaceae Barnhart
    1. Genus: Danthonia DC.
      1. Danthonia californica Bol.

        This species is accepted, and its native range is W. Canada to W. & W. Central U.S.A., Central Chile.

    [GB]
    Habit
    Perennial; caespitose. Culms 30-100 cm long; disarticulating at the nodes. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Leaf-blades flat, or involute; 10-20 cm long; 1-3 mm wide.
    Inflorescences
    Inflorescence a panicle; comprising 2-5 fertile spikelets. Panicle open; ovate; 2-5 cm long; bearing few spikelets. Primary panicle branches spreading, or reflexed. Spikelets spreading, or deflexed; solitary. Fertile spikelets pedicelled. Pedicels flexuous; 10-20 mm long.
    Spikelets
    Spikelets with diminished florets at the apex. Spikelets elliptic; laterally compressed; 15-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Fertile
    Spikelets with diminished florets at the apex. Spikelets elliptic; laterally compressed; 15-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 15-20 mm long; 1 length of upper glume; membranous; without keels; 5-7 -veined. Lower glume apex acuminate. Upper glume lanceolate; 15-20 mm long; 2 length of adjacent fertile lemma; membranous; without keels; 7 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma elliptic; 8-10 mm long; chartaceous; without keel; 5 -veined. Lemma margins ciliate; hairy below. Lemma apex lobed; 2 -fid; incised 0.25 of lemma length; awned; 3 -awned. Principal lemma awn from a sinus; geniculate; 7-12 mm long overall; with twisted column. Lateral lemma awns arising on apex of lobes; 3-4 mm long; shorter than principal. Palea 2 -veined. Palea keels winged; narrowly winged; ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy; glabrous. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Cleistogene
    Cleistogenes present; in lower sheaths.
    Distribution
    North America: western Canada, northwest USA, southwest USA, and south-central USA.
    Reference
    Arundineae. Man US Gr 1993.

    Images

    Distribution

    Native to:

    Alberta, Arizona, British Columbia, California, Chile Central, Colorado, Idaho, Montana, Nevada, Oregon, Saskatchewan, South Dakota, Utah, Washington, Wyoming

    Introduced into:

    Masachusettes

    Danthonia californica Bol. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1992 Pase, C.P. [614], USA K000702356
    Oct 1, 1961 Thompson, J.W. [4511], USA K000702369
    Oct 1, 1961 Leiberg, J.B. [1069], USA K000702353
    Oct 1, 1961 Elmer, A.D.E. [3306], USA K000702365
    Oct 1, 1961 Merrill, E.D. [126], USA K000702354
    May 1, 1961 Leiberg, J.B. [2369], USA K000702360
    May 1, 1960 Chase, A. [5645], USA K000702371
    May 1, 1960 Peck, M.E. [10127], USA K000702359
    May 1, 1960 Shear, C.L. [1708], USA K000702358
    May 1, 1960 Smith, E.C. [s.n.], USA K000702357
    May 1, 1960 Parks, S.T [24128], USA K000702370
    Chile K000308592
    Chile K000308593
    Bolander, H.N. [1533], USA K000702363 Unknown type material
    Macoun, J. [29934], USA K000702350
    Hoover, R.F. [4992], USA K000702366
    s.coll. [s.n.], USA K000702364 Unknown type material
    Aiken, S.G. [2177], USA K000702351
    Aiken, S.G. [1462A], USA K000702352
    Williams, T.A. [2647], USA K000702355
    s.coll. [s.n.], USA K000702362 Unknown type material
    Ryvest, T.B [96CE/149], Chile Danthonia americana K000702543
    Ryvest, T.B [96CE/149], Chile Danthonia americana K000702544
    Jan 1, 1992 Hitchcock, A.S. [1439], USA Danthonia californica var. americana K000702389
    Oct 1, 1961 Suksdorf, W. [868], USA Danthonia californica var. americana K000702385
    Oct 1, 1961 Rydberg, P.A. [3005], USA Danthonia californica var. americana K000702379
    Oct 1, 1961 Macoun, J. [149], Canada Danthonia californica var. americana K000702375
    Oct 1, 1961 Copeland [3789], USA Danthonia californica var. americana K000702396
    Oct 1, 1961 Rosendahl, C.O. [1854], Canada Danthonia californica var. americana K000702374
    Oct 1, 1961 Leiberg, J.B. [1007], USA Danthonia californica var. americana K000702383
    Oct 1, 1961 Hoover, R.F. [5038], USA Danthonia californica var. americana K000702398
    Oct 1, 1961 Anderson, C.L. [s.n.], USA Danthonia californica var. americana K000702397
    Oct 1, 1961 Macoun, J.M. [26080], Canada Danthonia californica var. americana K000702372
    Oct 1, 1961 Macoun, J.M. [63331], Canada Danthonia californica var. americana K000702373
    Oct 1, 1961 Hyslop [s.n.], USA Danthonia californica var. americana K000702384
    Oct 1, 1961 Ames [s.n.], USA Danthonia californica var. americana K000702387
    Oct 1, 1961 Burcham, L.T. [375], USA Danthonia californica var. americana K000702388
    Oct 1, 1961 Hasse, H.E. [s.n.], USA Danthonia californica var. americana K000702390
    May 1, 1961 Rydberg, P.A. [3605], USA Danthonia californica var. americana K000702382
    Oct 1, 1960 Suksdorf, W. [7302], USA Danthonia californica var. americana K000702386
    May 1, 1960 Hitchcock, A.S. [1436], USA Danthonia californica var. americana K000702395
    May 1, 1960 Hitchcock, C.L. [1845], USA Danthonia californica var. americana K000702380
    May 1, 1960 Hitchcock, C.L. [1845], USA Danthonia californica var. americana K000702381
    May 1, 1960 Palmer, E. [2666], USA Danthonia californica var. americana K000702393
    May 1, 1960 Palmer, E. [2666], USA Danthonia californica var. americana K000702394
    Swallen, J.R. [6416], USA Danthonia californica var. americana K000702377
    Calder, J.A. [36705], Canada Danthonia californica var. americana K000702376
    Tracy, J.P. [14479], USA Danthonia californica var. americana K000702391
    Tracy, J.P. [13853], USA Danthonia californica var. americana K000702392
    Nelson, J.C. [1438], USA Danthonia californica var. americana K000702378

    First published in Proc. Calif. Acad. Sci. 2: 182 (1863)

    Accepted by

    • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Literature

    Kew Backbone Distributions
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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