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This species is accepted, and its native range is W. Canada to W. U.S.A.
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Perennial. Culms 60-100 cm long; without nodal roots, or rooting from lower nodes. Culm-nodes pubescent. Leaf-sheaths pilose. Ligule an eciliate membrane; 3-5 mm long; glabrous on abaxial surface, or pubescent on abaxial surface; erose. Leaf-blades 5-10 mm wide. Leaf-blade surface glabrous, or pilose.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; elliptic, or ovate; 10-20 cm long. Primary panicle branches spreading, or drooping. Panicle branches terete. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-28 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-28 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 5-8 mm long; 0.7-0.8 length of upper glume; membranous; without keels; 1(-3) -veined. Lower glume lateral veins absent, or obscure. Lower glume apex acute. Upper glume lanceolate; 7-10 mm long; 0.8-0.9 length of adjacent fertile lemma; membranous; without keels; 3(-5) -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 8-13 mm long; herbaceous; without keel; 7 -veined. Lemma surface glabrous, or pubescent; hairy below. Lemma margins pubescent. Lemma apex acute; awned; 1 -awned. Principal lemma awn subapical; 3-8 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 3-5 mm long. Ovary with a fleshy appendage above style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; hairy at apex; apex fleshy. Hilum linear.
Distribution
North America: western Canada, northwest USA, and southwest USA.
Reference
Bromeae. Fl Pac NW 1993.

Native to:

Alberta, British Columbia, California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming

Bromus vulgaris (Hook.) Shear appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Mar 1, 1950 Scouler, J. [s.n.] K000913845 Unknown type material
Richardson, J. [134], Canada K000913846

First published in Bull. U.S.D.A. (1895-1901) 23: 43 (1900)

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.
  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

Literature

Kew Backbone Distributions

  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

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

Herbarium Catalogue Specimens
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 2021. 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 2021. 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