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This species is accepted, and its native range is E. Belgium to Czech Republic and Central Italy.
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Annual. Culms erect; 60-130 cm long. Leaf-sheaths glabrous on surface, or pilose. Ligule an eciliate membrane. Leaf-blades 3-8 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; equilateral, or nodding; 14-18 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 5-10 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or ovate; laterally compressed; compressed slightly; 18-50 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 5-10 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or ovate; laterally compressed; compressed slightly; 18-50 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet. Lower glume lanceolate; 0.75 length of upper glume; coriaceous; without keels; 5 -veined. Lower glume surface glabrous, or pubescent. Lower glume apex acute; muticous, or mucronate. Lower glume awn subapical. Upper glume lanceolate; 0.75 length of adjacent fertile lemma; coriaceous; without keels; 7 -veined. Upper glume surface glabrous, or pubescent. Upper glume apex acute; muticous, or mucronate. Upper glume awn subapical.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 10-12 mm long; chartaceous; without keel; 7-9 -veined. Lemma surface glabrous, or pubescent. Lemma margins involute. Lemma apex entire, or dentate; 2 -fid; with lobes 0.1-0.5 mm long; awned; 1 -awned. Principal lemma awn subapical; 8-12 mm long overall. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3. Ovary with a fleshy appendage above style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; concavo-convex; 10-12 mm long; hairy at apex; apex fleshy. Hilum linear.
Distribution
Europe: central. Asia-temperate: China.
Reference
Bromeae. Fl Eur 1995.

Doubtfully present in:

Tibet

Native to:

Austria, Belgium, Czechoslovakia, France, Germany, Italy, Switzerland

Extinct in:

Netherlands

Introduced into:

Great Britain, New York, Oregon

Bromus grossus Desf. ex DC. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 1972 Kneucker, J.A. [774], Germany K000913564
Feb 1, 1972 Trachsel, K. [s.n.] K000913566
Gay, J.E. [s.n.] K000913562
s.coll. [s.n.], Germany K000913563
Monnier, A. [s.n.], France K000913565
Lejeune, A.L.S. [s.n.] K000913561

First published in J.B.A.M.de Lamarck & A.P.de Candolle, Fl. Franç., ed. 3, 3: 68 (1805)

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.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

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.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

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