Koeleria praeandina A.Molina

This species is accepted, and its native range is NW. Argentina.

[GB]
Morphology General Habit
Perennial; caespitose. Rhizomes short. Culms geniculately ascending; 30-73 cm long; 2-3 -noded. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths glabrous on surface, or pubescent. Ligule a ciliolate membrane; 0.7-3 mm long; truncate, or acute. Leaf-blades 2.5-19 cm long; 1.5-2 mm wide. Leaf-blade surface glabrous, or puberulous. Leaf-blade margins ciliate. Leaf-blade apex obtuse.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; exserted, or embraced at base by subtending leaf. Peduncle pubescent above. Panicle spiciform; linear; interrupted; 3.5-17.5 cm long; 0.3-1 cm wide. Panicle axis pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels pubescent.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 4-6 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; pubescent. Floret callus sparsely hairy.
Fertile
Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 4-6 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; pubescent. Floret callus sparsely hairy.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture; shiny; gaping. Lower glume lanceolate; 5-5.5 mm long; 0.8-0.9 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scaberulous (above). Lower glume apex acuminate. Upper glume lanceolate; 5-5.5 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous (above). Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 4-4.5 mm long; membranous; shiny; keeled; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma apex acute; muticous, or mucronate. Palea gaping. Palea keels scaberulous.
Morphology Reproductive morphology Flowers
Lodicules 2; 1 mm long; membranous. Anthers 3; 1-1.8 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; laterally compressed; 2.5 mm long. Hilum elliptic. Endosperm liquid.
Distribution
South America: southern South America.
Reference
Aveneae. Molina 2005.

Native to:

Argentina Northwest

Koeleria praeandina A.Molina appears in other Kew resources:

First published in Bol. Soc. Argent. Bot. 26: 221 (1990)

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 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