Poaceae
Agrostis

Agrostis dshungarica (Tzvelev) Tzvelev

First published in Pl. Central Asia 4: 292 (2001)
This species is accepted
The native range of this species is Xinjiang to W. Central Himalaya. It is an annual or perennial and grows primarily in the subalpine or subarctic biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Culms 20-40 cm long. Culm-internodes smooth; distally glabrous. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane; 1.5-2.5 mm long; scaberulous on abaxial surface. Leaf-blades 5-10 mm wide. Leaf-blade surface scaberulous; rough adaxially; glabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; lanceolate; (5-)10-30 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.33 length of lemma.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.33 length of lemma.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 3-4 mm long; 1 length of upper glume; membranous; 1-keeled; 1-3 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent, or obscure. Lower glume apex acute. Upper glume lanceolate; 3-4 mm long; 1.5-1.6 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent, or obscure. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 2-2.5 mm long; hyaline; without keel; 5 -veined. Lemma surface pilose. Lemma apex erose; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.3-0.4 way up back of lemma; straight, or geniculate; 3-4.3 mm long overall; without a column, or with twisted column. Palea 0.5 length of lemma; hyaline.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 0.7-0.9 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
Asia-temperate: Soviet Middle Asia and China.
Reference
Aveneae. Pl Cent Asia 1996.
[GB]

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]

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 2026. 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 2026. 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