Family:
Poaceae Barnhart
Genus:
Deschampsia P.Beauv.

Deschampsia kingii (Hook.f.) É.Desv.

This species is accepted, and its native range is Central & S. Chile to S. Argentina.

[GB]
Morphology General Habit
Perennial; caespitose. Rhizomes absent, or short. Culms robust; 60-140 cm long; 2-3 -noded. Ligule an eciliate membrane; 10 mm long; acuminate. Leaf-blades flat, or conduplicate; 10-18 cm long; 2-5 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex muticous, or pungent.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; oblong; nodding; 15-35 cm long. Primary panicle branches whorled at lower nodes. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2(-3) fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5.5-6.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; 1.5-1.8 mm long; pilose. Floret callus pilose. Floret callus hairs 0.5 length of lemma.
Fertile
Spikelets comprising 2(-3) fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5.5-6.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; 1.5-1.8 mm long; pilose. Floret callus pilose. Floret callus hairs 0.5 length of lemma.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; similar to fertile lemma in texture; shiny. Lower glume lanceolate; 5-6 mm long; 0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex erose; truncate. Upper glume elliptic; 5.5-6.5 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex erose; truncate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 3.5-4 mm long; membranous; shiny; without keel; 5 -veined. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; straight; 1-3 mm long overall. Rhachilla extension pilose.
Morphology Reproductive morphology Flowers
Lodicules 2; 0.7-0.9 mm long; membranous. Anthers 3; 1.5-2 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 2.5 mm long. Hilum punctiform.
Distribution
South America: southern South America.
Reference
Aveneae. Fl Pat 1995.

Native to:

Argentina South, Chile Central, Chile South

Deschampsia kingii (Hook.f.) É.Desv. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
King [s.n.], Chile K000308341 paralectotype Yes
Darwin, C. [546], Tierra del Fuego (Argentina) K000308342 lectotype Yes
Lechler [1222] K000308335 Yes

First published in C.Gay, Fl. Chil. 6: 335 (1854)

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

  • 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