Poaceae
Agrostis

Agrostis nebulosa Boiss. & Reut.

First published in P.E.Boissier, Diagn. Pl. Orient.: 26 (1842)
This species is accepted
The native range of this species is E. & S. Spain, SE. Portugal, Morocco. It is an annual and grows primarily in the subtropical 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, or geniculately ascending; 25-50 cm long; 2-3 -noded. Culm-internodes smooth. Leaf-sheaths scaberulous; glabrous on surface. Ligule an eciliate membrane; 1.5-3.5 mm long; erose. Leaf-blades flat; 3-10 cm long; 1-3.5 mm wide. Leaf-blade surface scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 12-20 cm long; 6-10 cm wide. Primary panicle branches 10-15 -nate; whorled at most nodes. Spikelets solitary. Fertile spikelets pedicelled. Pedicels clavate; 5-12 mm long; 4-7 length of fertile spikelet.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 1.3-1.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 1.3-1.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 1.3-1.7 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume lanceolate; 1.3-1.7 mm long; 2-3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 0.4-0.8 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins extending close to apex. Lemma apex erose; truncate; muticous. Palea 0.4-0.6 mm long; 0.75-1 length of lemma; hyaline.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 1 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
Europe: southwestern. Africa: north. South America: southern South America.
Reference
Aveneae. Gr Extremad 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