Family:
Poaceae Barnhart

Ampelodesmos Link

This genus is accepted, and its native range is Medit.

[GB]

nonem

Morphology General Habit
Perennial. Rhizomes short. Culms 100-200 cm long. Ligule an eciliate membrane. Leaf-blades coriaceous; stiff.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-16 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes villous. Floret callus bearded.
Fertile
Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-16 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes villous. Floret callus bearded.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet, or reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 0.75 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex attenuate. Upper glume lanceolate; 0.8-1.2 length of adjacent fertile lemma; membranous; 1-keeled; 5 -veined. Upper glume apex attenuate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; coriaceous; keeled; 5 -veined. Lemma midvein ciliate. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus. Palea 0.75 length of lemma; coriaceous; 2 -veined. Palea keels scaberulous. Palea apex dentate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous; ciliate; acute. Anthers 3. Ovary with a fleshy appendage below style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; linear. Embryo 0.25 length of caryopsis. Hilum linear; 1 length of caryopsis.
Distribution
Europe, or Africa, or Temperate Asia, or North America.

Doubtfully present in:

Corse

Native to:

Algeria, Baleares, France, Greece, Italy, Libya, Morocco, Sardegna, Sicilia, Spain, Tunisia

Introduced into:

California, East Aegean Is., Portugal

Ampelodesmos Link appears in other Kew resources:

First published in Hort. Berol. 1: 136 (1827)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

  • 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