Poaceae
Alopecurus

Alopecurus borii Tzvelev

First published in Novosti Sist. Vyssh. Rast. 8: 21 (1971)
This species is accepted
The native range of this species is Turkmenistan. 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: threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual. Culms geniculately ascending, or decumbent; 10-30 cm long. Ligule an eciliate membrane; 1.5-4 mm long. Leaf-blades 1.2-4 mm wide. Leaf-blade surface scabrous; rough adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle spiciform; linear; 2-6 cm long; 0.2-0.45 cm wide. Primary panicle branches accrescent to a central axis; with evident branchlets on axis. Panicle axis with rounded ribs; puberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2.7-3.2 mm long; falling entire.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2.7-3.2 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes connate along margins below; 0.25-0.33 of their length connate; similar; shorter than spikelet. Lower glume elliptic; 2.5-3 mm long; 1 length of upper glume; cartilaginous; 1-keeled; winged on keel; 3 -veined. Lower glume primary vein ciliolate. Lower glume apex acute. Upper glume elliptic; 2.5-3 mm long; 0.9 length of adjacent fertile lemma; cartilaginous; 1-keeled; winged on keel; 3 -veined. Upper glume primary vein ciliolate. Upper glume hairs 0.2 mm long. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2.7-3.2 mm long; membranous; keeled; 5 -veined. Lemma margins connate below. Lemma apex truncate; muticous. Palea absent or minute.
Morphology Reproductive morphology Flowers
Lodicules absent. Anthers 3; 0.5-0.8 mm long. Stigmas terminally exserted; pubescent. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a spikelet.
Distribution
Asia-temperate: Soviet Middle Asia.
Reference
Aveneae. Mez 1996.
[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