Poaceae
Festuca

Festuca orientalis (Boiss.) B.Fedtsch.

First published in Izv. Imp. Bot. Sada Petra Velikago 14(Suppl. 2): 87 (1915)
This species is accepted
The native range of this species is Morocco, W. & Central Asia to Pakistan. It is an annual and grows primarily in the temperate biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual. Culms erect; 10-20 cm long. Leaf-sheaths inflated. Ligule an eciliate membrane; 0.5-1 mm long; lacerate; truncate. Leaf-blades convolute; 1-3 cm long; 0.5 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 1; single; unilateral; 1.5-6 cm long. Rhachis angular. Spikelet packing broadside to rhachis. Spikelets appressed; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3-6.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3-6.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes lateral (lower glume); persistent; similar; exceeding apex of florets. Lower glume lanceolate; 2.6-5.1 mm long; 0.8 length of upper glume; coriaceous; without keels; 1-3 -veined. Lower glume apex attenuate; mucronate. Upper glume lanceolate; 3-6.2 mm long; 1.5-2 length of adjacent fertile lemma; coriaceous; without keels; 1-3 -veined. Upper glume apex attenuate; mucronate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 2-3 mm long; coriaceous; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface smooth, or scabrous. Lemma apex emarginate to acute; muticous, or awned; 1 -awned. Principal lemma awn 0-1.5 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 0.5-1 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; 1.5-2 mm long. Hilum linear; 0.33-0.5 length of caryopsis.
Distribution
Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia. Asia-tropical: India.
Reference
Poeae. Fl Turk.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). 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 Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Science Photographs

    • Copyright applied to individual images