Family:
Poaceae Barnhart
Genus:
Bromus L.

Bromus stenostachyus Boiss.

This species is accepted, and its native range is Iran to Pakistan and Xinjiang.

[GB]
Morphology General Habit
Perennial; caespitose. Rhizomes elongated. Culms erect, or geniculately ascending; 30-75 cm long. Culm-internodes distally glabrous. Leaf-sheaths pubescent, or hispid. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades 10-20 cm long; 1.5-2.5 mm wide; dark green. Leaf-blade surface hispid; hairy abaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; linear; 11-18 cm long. Primary panicle branches indistinct the panicle almost racemose; bearing 1 fertile spikelets on each lower branch. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 7-9 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 7-9 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 20-30 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; 6.5-9 mm long; 0.8-0.9 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 7.5-10 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile florets divergent. Fertile lemma lanceolate; 10-12 mm long; chartaceous; shiny; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; 2.5-3.5 mm long overall. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 4-5 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
Asia-temperate: western Asia and China. Asia-tropical: India.
Reference
Bromeae. Fl Pak 1993.

Native to:

Afghanistan, Iran, Pakistan, Xinjiang

Bromus stenostachyus Boiss. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Aitchison, J.E.T. [1255], Afghanistan K000913715 syntype Yes
Aitchison, J.E.T. [814], Afghanistan K000913714 syntype Yes
Aitchison, J.E.T. [1254], Afghanistan K000913713 syntype Yes

First published in Fl. Orient. 5: 643 (1884)

Accepted by

  • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae. Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
  • 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 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