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This species is accepted, and its native range is New Zealand South Island.
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Perennial; caespitose; clumped densely. Culms 2-5 cm long. Ligule an eciliate membrane; acute. Leaf-blades curved; filiform; convolute; 1-2 cm long; 0.5 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted, or spiciform; lanceolate, or oblong; 1 cm long. Primary panicle branches bearing 1-3 fertile spikelets on each lower branch. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; glabrous. Floret callus glabrous, or pubescent.
Fertile
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; glabrous. Floret callus glabrous, or pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; reaching apex of florets; similar to fertile lemma in texture; shiny. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume elliptic; 1.2 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 2-2.5 mm long; membranous; shiny; without keel; 5 -veined. Lemma apex erose, or dentate; 4 -fid; mucronate. Principal lemma awn (mucro) subapical. Rhachilla extension glabrous.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
Australasia: New Zealand.
Reference
Aveneae. Cheeseman 1995.

Native to:

New Zealand South

Deschampsia pusilla Petrie appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 2004 Petrie, W. [1901], New Zealand K000307877 isotype

First published in Trans. & Proc. New Zealand Inst. 23: 403 (1891)

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.
  • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.

Literature

Kew Backbone Distributions

  • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.

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