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

[GB]
Morphology General Habit
Perennial; caespitose. Culms erect; 15-35 cm long. Ligule an eciliate membrane. Leaf-blades filiform; involute; 4-10 cm long; 0.5-1 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 5-15 cm long. Primary panicle branches 2 -nate. Panicle branches capillary; scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 3-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; pubescent. Floret callus pubescent.
Fertile
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 3-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; pubescent. Floret callus pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; shiny. Lower glume ovate; 0.8-1.2 mm long; 0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume elliptic; 1-1.5 mm long; 0.66-0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile florets all alike, or with the lowest dissimilar (muticous). Fertile lemma oblong; 1.5-3 mm long; hyaline; shiny; without keel; 5 -veined. Lemma apex dentate; 3-4 -fid; truncate; awned; 1 -awned. Principal lemma awn subapical, or dorsal; arising 0.9 way up back of lemma; straight; 1.5-3 mm long overall. Palea hyaline. Palea keels ciliate. Rhachilla extension 0.4-0.5 length of fertile floret; pubescent.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Australasia: New Zealand.
Reference
Aveneae. WDC.

Native to:

New Zealand North, New Zealand South

Deschampsia tenella Petrie appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 2004 Petrie, W. [1903], New Zealand K000307876 Unknown type material
s.coll. [s.n.], New Zealand K000808954
Kirk, T. [s.n.], New Zealand K000808953
Kirk, T. [s.n.], New Zealand K000808955
Colenso, W. [1553], New Zealand K000808951
Kirk, T. [s.n.], New Zealand K000808956
Petrie, D. [1848], New Zealand K000808957
Kirk, T. [s.n.], New Zealand K000808952

First published in Trans. & Proc. New Zealand Inst. 23: 402 (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