Genus:
Hordeum L.

Hordeum cordobense Bothmer, N.Jacobsen & Nicora

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

[GB]
Morphology General Habit
Perennial; caespitose. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Culms erect; 70-80 cm long; 3-6 -noded. Culm-nodes glabrous. Leaf-sheath auricles absent. Ligule an eciliate membrane; 0.4-1.5 mm long. Leaf-blades 5-13 cm long; 1.7-4.4 mm wide. Leaf-blade surface scabrous; glabrous, or pubescent; hairy adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes; exserted, or embraced at base by subtending leaf. Racemes 1; single; linear; bilateral; 5-10 cm long; 3-4 mm wide. Rhachis fragile at the nodes; narrowly winged; flattened; scabrous on surface; ciliate on margins. Spikelet packing broadside to rhachis. Rhachis internodes oblong; 1.2-1.8 mm long; falling with spikelet above. Spikelets in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 2 in the cluster. Pedicels oblong; 1-2.5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Companion sterile spikelets well-developed; containing empty lemmas, or male (rarely); lanceolate; dorsally compressed; 3.7-7 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet glumes subulate. Companion sterile spikelet lemmas 1; 4 mm long; muticous (mucronate). Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5-8 mm long; falling entire; deciduous with accessory branch structures.
Sterile
Companion sterile spikelets well-developed; containing empty lemmas, or male (rarely); lanceolate; dorsally compressed; 3.7-7 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet glumes subulate. Companion sterile spikelet lemmas 1; 4 mm long; muticous (mucronate).
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5-8 mm long; falling entire; deciduous with accessory branch structures.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes collateral; similar. Lower glume linear; 4-6.5 mm long; 1 length of upper glume. Lower glume surface scabrous. Upper glume linear; 4-6.5 mm long. Upper glume surface scabrous.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 5-8 mm long; coriaceous; without keel; 7-9 -veined. Lemma lateral veins prominent. Lemma apex acuminate; muticous, or awned; 1 -awned. Principal lemma awn 1.5-5 mm long overall; limb scabrous.
Morphology Reproductive morphology Flowers
Anthers 3; 1.8-3 mm long. Ovary pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; sulcate on hilar side; hairy at apex. Hilum linear.
Distribution
South America: southern South America.
Reference
Triticeae. Bothmer 1993.

Native to:

Argentina Northeast, Argentina Northwest

Hordeum cordobense Bothmer, N.Jacobsen & Nicora appears in other Kew resources:

First published in Bot. Not. 133: 544 (1980)

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