Poaceae
Deschampsia

Deschampsia koelerioides Regel

First published in Bull. Soc. Imp. Naturalistes Moscou 41(II): 299 (1869)
This species is accepted
The native range of this species is Afghanistan to Siberia and W. Himalaya. It is a perennial 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
Perennial; caespitose. Culms erect; 10-40 cm long. Leaves mostly basal. Ligule an eciliate membrane; 4-8 mm long; scarious. Leaf-blades 2-20 cm long; 2-3 mm wide. Leaf-blade surface ribbed; scaberulous; rough adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted, or spiciform; oblong, or ovate; 2-5 cm long; 1-1.5 cm wide. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; pilose. Floret callus pilose. Floret callus hairs 0.33 length of lemma.
Fertile
Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; pilose. Floret callus pilose. Floret callus hairs 0.33 length of lemma.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets, or reaching apex of florets; similar to fertile lemma in texture; shiny. Lower glume oblong; 3-3.6 mm long; 0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex entire, or erose; obtuse, or acute. Upper glume elliptic; 3.6-4.2 mm long; 1-1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex entire, or erose; obtuse, or acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic, or oblong; 3.3-4.3 mm long; membranous; shiny; without keel; 5 -veined. Lemma apex dentate; 2 -fid; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.1-0.3 way up back of lemma; straight; 2.5-4 mm long overall; clearly exserted from spikelet.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
Asia-temperate: Siberia, Soviet Middle Asia, western Asia, China, and Mongolia. Asia-tropical: India.
Reference
Aveneae. Fl Pak 1993.
[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

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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 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