Family:
Poaceae Barnhart
Genus:
Brachypodium P.Beauv.

Brachypodium kawakamii Hayata

This species is accepted, and its native range is Taiwan.

[GB]
Morphology General Habit
Perennial; caespitose; clumped densely. Culms erect, or geniculately ascending; 10-30 cm long; 0.75-1 mm diam.; 3-5 -noded. Lateral branches sparse. Leaves basal and cauline. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades involute; 3-6 cm long; 1.5 mm wide. Leaf-blade surface glabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence comprising only a few spikelets; comprising 1-2 fertile spikelets. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 8-16 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; compressed slightly; 12-27 mm long; 6-8 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long; pilose. Floret callus glabrous, or pubescent.
Fertile
Spikelets comprising 8-16 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; compressed slightly; 12-27 mm long; 6-8 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long; pilose. Floret callus glabrous, or pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume elliptic, or oblong; 5-8 mm long; 0.5-0.6 length of upper glume; chartaceous; without keels; 5-7 -veined. Lower glume surface pubescent. Lower glume apex acute. Upper glume elliptic, or oblong; 10-13 mm long; 1.1 length of adjacent fertile lemma; chartaceous; without keels; 7(-9) -veined. Upper glume surface pubescent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate, or oblong; 9-12 mm long; chartaceous; without keel; 7 -veined. Lemma surface pubescent. Lemma apex acute; awned; 1 -awned. Principal lemma awn apical; 3-6 mm long overall. Palea elliptic, or oblong; 1 length of lemma. Palea keels ciliolate. Palea apex emarginate, or truncate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 3 mm long. Ovary with a fleshy appendage below style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; hairy at apex; apex fleshy. Hilum linear.
Distribution
Asia-temperate: eastern Asia.
Reference
Triticeae. Ohwi 1996.

Native to:

Taiwan

Brachypodium kawakamii Hayata appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
s.coll. [s.n.], Taiwan K000913820 Yes

First published in Bot. Mag. (Tokyo) 21: 51 (1907)

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.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • 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