Poaceae
Festuca

Festuca junatovii E.B.Alexeev

First published in Novosti Sist. Vyssh. Rast. 13: 20 (1976)
This species is accepted
The native range of this species is Xinjiang (E. Tian Shan Mountains). It is a perennial and grows primarily in the subalpine or subarctic 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: threatened. Confidence: low confidence
[AERP]

Morphology General Habit
Perennial; caespitose; clumped densely. Culms 20-40 cm long. Culm-internodes smooth; distally glabrous. Leaf-sheaths tubular for much of their length; with 0.5-1 of their length closed; glabrous on surface. Ligule an eciliate membrane. Leaf-blades filiform; conduplicate; angular in section; 5-15 cm long; 0.4-0.5 mm wide. Leaf-blade venation comprising 5 vascular bundles; with 3 inner ridges; with 7 subepidermal sclerenchyma strands; without layer of subepidermal sclerenchyma masking vein striation. Leaf-blade surface smooth.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; lanceolate; 5-8 cm long; bearing few spikelets. Panicle axis smooth. Panicle branches smooth. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 0.66-0.75 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.7-0.8 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume lateral veins obscure. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 4.3-4.7 mm long; chartaceous; without keel; 5 -veined. Lemma apex muticous, or mucronate, or awned; 1 -awned. Principal lemma awn 0-0.5 mm long overall. Palea 2 -veined. Palea keels scabrous; with 0.33 of their length adorned. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 1.8-2.2 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
Asia-temperate: China.
Reference
Poeae. Alexeev 1997.
[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

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. 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 2025. 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