Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : lolpe
Synonym(s) of Sc. name:
Classification: Gramineae, Monocotyledonous
Common name: perennial rye-grass
Synonym(s) of Common name:
Name per country: DE : Englisches Raygras ; ES : vallico ; FR : ray-grass Anglais ; IT : loglio comune ; PT : gazao ; EN : perennial rye-grass ; NL : engels raaigras ;
Biological type: Perennial
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- Shoot folded, sheath flattened.
- Leaf blade 20-50 times longer than broad, leaf glabrous.
- Ligule membranous truncate, auricles elongate and crossed.
- Height: 10-70 cm. Plant tufted, glabrous, (culms always present).
- Stem: smooth even below the spike. Auricles present glabrous but very short, with marked veins, and sheaths red-crimson at the base.
- Leaves dark-green, shiny and glabrous beneath, furrowed above.
- Inflorescence : spike flexuous-peduncled, axis smooth. Spikelet in distichous order, its narrow part edgeways on to the axis.
- Fruit : caryopsis enclosed in flowering glumes, with a straight rachilla adnate to the palea.
- Plant very cultivated in meadows and lawns. Populations exist which are resistant to paraquat in Great-Britain.
- Risk of confusion with Lolium rigidum Gaud.
- Biological type: Perennial.
Mistake with: Lolium rigidum
Ecological profile (click on flags):
Present
Rare
Present
Present
Present
Rare
Present
Present
