Family:
Poaceae Barnhart
Genus:
Bromus L.

Bromus arenarius Labill.

This species is accepted, and its native range is S. & SE. Australia.

[GB]
Morphology General Habit
Perennial. Culms erect, or geniculately ascending; 30-40 cm long. Culm-internodes distally glabrous, or pubescent. Culm-nodes pubescent. Leaf-sheaths pubescent. Ligule an eciliate membrane. Leaf-blades 7-15 cm long; 3-5 mm wide. Leaf-blade surface glabrous to pubescent.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; pyramidal; 8-15 cm long. Primary panicle branches spreading. Panicle branches capillary; flexuous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 5-14 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes clavate; 2 mm long; scaberulous.
Fertile
Spikelets comprising 5-14 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes clavate; 2 mm long; scaberulous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet. Lower glume lanceolate; 6-8 mm long; 0.75-0.8 length of upper glume; membranous; without keels; 3-4 -veined. Lower glume surface puberulous. Lower glume apex acute. Upper glume lanceolate; 8-10 mm long; 0.66 length of adjacent fertile lemma; membranous; without keels; 7 -veined. Upper glume surface puberulous. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate, or oblong; 12-15 mm long; chartaceous; much thinner above; much thinner on margins; without keel; 7 -veined. Lemma surface scaberulous, or scabrous. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; straight, or curved; 10-15 mm long overall. Palea 0.8 length of lemma. Palea keels ciliolate. 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; hairy at apex; apex fleshy. Hilum linear.
Distribution
Australasia: Australia and New Zealand. North America: northwest USA, northeast USA, and southwest USA.
Reference
Bromeae. Fl W Austral 1994.

Native to:

New South Wales, South Australia, Tasmania, Victoria, Western Australia

Introduced into:

Arizona, California, Chatham Is., Mexico Northeast, Nevada, New Zealand North, Oregon, Pennsylvania

Bromus arenarius Labill. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Brown, R. [6292], New South Wales K000913863 Yes

First published in Nov. Holl. Pl. 1: 23 (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.
  • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
  • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.
  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
  • Saarela, J.M., Peterson, P.M. & Váldes-Reyna, J. (2014). A taxonomic revision of Bromus (Poaceae: Pooideae: Bromeae) in México and Central America. Phytotaxa 185(1): 1-147.
  • Wilson, A. (ed.) (2009). Flora of Australia 44A: 1-410. Australian Government Publishing Service, Canberra.

Literature

Kew Backbone Distributions

  • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
  • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.
  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
  • Wilson, A. (ed.) (2009). Flora of Australia 44A: 1-410. Australian Government Publishing Service, Canberra.

  • 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 2022. 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 2022. 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