Descriptions
- Morphology General Habit
- Perennial; caespitose. Culms erect; 6-60 cm long. Culm-internodes antrorsely scabrous. Leaf-sheaths without keel; smooth, or scaberulous; glabrous on surface. Ligule an eciliate membrane; 4-6 mm long; entire, or lacerate. Leaf-blades filiform; 5-15 cm long; 0.5-0.8 mm wide. Leaf-blade surface scabrous; rough on both sides. Leaf-blade apex obtuse, or abruptly acute.
- Morphology Reproductive morphology Inflorescences
- Inflorescence a panicle. Panicle open; ovate; 5-10 cm long. Primary panicle branches ascending, or spreading; whorled at most nodes. Panicle axis scabrous. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous; tip rectangular.
- Morphology Reproductive morphology Inflorescences Spikelets
- Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.4 mm long.
- Fertile
- Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.4 mm long.
- Morphology Reproductive morphology Inflorescences Bracts Glume
- Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 2-2.5 mm long; 1 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2-2.5 mm long; 1.2 length of adjacent fertile lemma; membranous; purple; 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 oblong; 1.8 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins extending close to apex. Lemma apex erose; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.25 way up back of lemma; geniculate; 3-3.5 mm long overall; with twisted column. Palea absent or minute.
- Morphology Reproductive morphology Flowers
- Lodicules 2; membranous. Anthers 3; 1.2 mm long; yellow.
- Morphology Reproductive morphology Fruits
- Caryopsis with adherent pericarp; oblong; sulcate on hilar side; 1.4-1.5 mm long; light brown. Embryo 0.25-0.33 length of caryopsis. Hilum elliptic.
- Distribution
- Europe: southwestern. Africa: north.
- Reference
- Aveneae. Fl Afr N 1994.
IUCN Red List of Threatened Species https://www.iucnredlist.org/species/13164478/18614490
- Conservation
- LC - least concern
Sources
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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
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Herbarium Catalogue Specimens
- Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
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IUCN Categories
- IUCN Red List of Threatened Species
- http://creativecommons.org/licenses/by-nc-sa/3.0
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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
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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