Family:
Poaceae Barnhart
Genus:
Poa L.

Poa pentapolitana H.Scholz

This species is accepted, and its native range is NE. Libya.

[GB]
Morphology General Habit
Annual; caespitose. Culms erect, or geniculately ascending; 8-15 cm long. Lateral branches lacking. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane; 1-1.5 mm long; acuminate. Leaf-blades flat, or conduplicate; 3-5 cm long; 1.5-3 mm wide. Leaf-blade surface glabrous. Leaf-blade margins smooth. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; pyramidal; dense; 2-3 cm long. Primary panicle branches spreading; 2-3 -nate; 0.5-1.5 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets ovate; laterally compressed; 2-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus glabrous.
Fertile
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets ovate; laterally compressed; 2-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus glabrous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 1.6-1.8 mm long; 0.9 length of upper glume; membranous; much thinner on margins; purple; 1-keeled; 3 -veined. Lower glume primary vein scabrous. Lower glume apex acute. Upper glume lanceolate; 1.7-2 mm long; 1.1 length of adjacent fertile lemma; membranous; with hyaline margins; purple; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 1.6-1.8 mm long; membranous; purple; streaked with last colour and tipped with last colour; keeled; 5 -veined. Lemma midvein scaberulous. Lemma apex obtuse, or acute. Palea 1 length of lemma. Palea keels scaberulous.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 1 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
Africa: north.
Reference
Poeae. Scholz 1994.

Native to:

Libya

Poa pentapolitana H.Scholz appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Davis [50250], Libya K000345212 isotype Yes

First published in Willdenowia 6: 292 (1971)

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.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.

Literature

Kew Backbone Distributions

  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.

  • 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