Poaceae
Agrostis

Agrostis reuteri Boiss.

First published in Voy. Bot. Espagne 2: 645 (1844)
This species is accepted
The native range of this species is Macaronesia, W. Medit. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Culms geniculately ascending; 35-70 cm long; 3-5 -noded. Culm-internodes smooth. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane; 2.5-4.5 mm long; lacerate; obtuse. Leaf-blades flat; 5-17 cm long; 1-2.5 mm wide. Leaf-blade surface scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; elliptic, or ovate; effuse; 10-20 cm long; 2-8 cm wide. Primary panicle branches 2-6 -nate; whorled at most nodes. Panicle axis scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-7 mm long; 1.1-1.4 length of fertile spikelet.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 1.4-1.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 1.4-1.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 1.4-1.8 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 1.4-1.8 mm long; 1.4-1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 0.9-1.3 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins extending close to apex. Lemma apex erose; truncate; muticous. Palea 0.7-0.8 mm long; 0.6-0.75 length of lemma; hyaline. Palea apex erose.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 0.9-1.2 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 1 mm long. Hilum linear.
Distribution
Europe: southwestern. Africa: north and Macaronesia. South America: southern South America.
Reference
Aveneae. Gr Extremad 1993.
[GB]

Sources

  • 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

    • 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0