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This species is accepted, and its native range is Central Chile to Argentina (Mendoza).

[GB]
Morphology General Habit
Perennial; caespitose; clumped densely. Culms erect; 30-60 cm long; 1-2 -noded. Leaves mostly basal. Leaf-sheaths 3-4 cm long; smooth; glabrous on surface. Ligule an eciliate membrane; 10-15 mm long; bilobed. Leaf-blades conduplicate; 4-8 cm long; 1.5 mm wide. Leaf-blade surface smooth, or scaberulous; glabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 10 cm long. Primary panicle branches 1-2 -nate; 5 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets lanceolate, or oblong; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Rhachilla internodes definite; 1-1.4 mm long; pilose. Floret callus pilose. Floret callus hairs 1 mm long.
Fertile
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets lanceolate, or oblong; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Rhachilla internodes definite; 1-1.4 mm long; pilose. Floret callus pilose. Floret callus hairs 1 mm long.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture; shiny. Lower glume lanceolate; 4 mm long; 1 length of upper glume; membranous; dark brown; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 4 mm long; 1.3 length of adjacent fertile lemma; membranous; dark brown; 1-keeled; 3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 3-3.5 mm long; membranous; much thinner above; dark brown; shiny; without keel; 5 -veined. Lemma apex dentate; 4 -fid; with outer lobes longer; awned; 1 -awned. Principal lemma awn dorsal; arising 0.25-0.33 way up back of lemma; geniculate; 5-6 mm long overall; clearly exserted from spikelet; with a straight or slightly twisted column. Palea 1 length of lemma. Rhachilla extension 1-1.4 mm long; pilose.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 2.5 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
South America: southern South America.
Reference
Aveneae. Parodi 1997.

Native to:

Argentina Northwest, Chile Central

Deschampsia cordillerarum Hauman appears in other Kew resources:

First published in Anales Soc. Ci. Argent. 86: 231 (1918)

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.
  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.

Literature

Kew Backbone Distributions

  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/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