Genus:
Avena L.

Avena saxatilis (Lojac.) Rocha Afonso

This species is accepted, and its native range is Sicilia (Island Lipari, Marettimo, Limosa).

[GB]
Morphology General Habit
Annual; caespitose; clumped densely. Culms erect, or geniculately ascending; 7-25 cm long. Culm-nodes glabrous. Lateral branches lacking. Ligule an eciliate membrane; 0.3-1 mm long. Leaf-blades 3-6 cm long; 0.5-1.5 mm wide. Leaf-blade surface scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; elliptic; 5-10 cm long. Spikelets pendulous; solitary. Fertile spikelets pedicelled. Pedicels filiform.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 15-18 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose. Floret callus evident; bearded; obtuse.
Fertile
Spikelets comprising 2-3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 15-18 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose. Floret callus evident; bearded; obtuse.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 15-18 mm long; 1 length of upper glume; membranous; without keels; 5-7 -veined. Lower glume apex acuminate. Upper glume elliptic; 15-18 mm long; 1.7-1.8 length of adjacent fertile lemma; membranous; without keels; 5-7 -veined. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 9-10 mm long; coriaceous; much thinner above; without keel; 7 -veined. Lemma surface scabrous; rough above; pilose; hairy below. Lemma apex dentate; 2 -fid; awned; 3 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 15-30 mm long overall; with twisted column. Lateral lemma awns arising on apex of lobes; 3-4 mm long; shorter than principal. Palea keels ciliolate.
Morphology Reproductive morphology Flowers
Anthers 3. Ovary pubescent all over.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; sulcate on hilar side; hairy all over. Hilum linear.
Distribution
Europe: southeastern.
Reference
Aveneae. Fl Eur 1997.

Native to:

Sicilia

Avena saxatilis (Lojac.) Rocha Afonso appears in other Kew resources:

First published in Bot. J. Linn. Soc. 76: 359 (1978)

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.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

Literature

Kew Backbone Distributions

  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

  • 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