Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : lolmu
Synonym(s) of Sc. name: Lolium italicum A. Braun.
Classification: Gramineae, Monocotyledonous
Common name: italian rye-grass
Synonym(s) of Common name:
Name per country: DE : Italienisches Raygras ; ES : raigras italiano ; FR : ray-grass d' Italie ; IT : loiessa ; PT : azevém ; EN : italian rye-grass ; NL : italiaans raaigras ;
Biological type: Annual
.
- Shoot rolled, sheath terete.
- Leaf blade 20-50 times longer than broad, leaf glabrous.
- Ligule membranous truncate, auricles elongate and crossed.
- Height: 40-120 cm. Plant tufted, glabrous.
- Stem: stout and erect or slightly prostrate in the lower part, then ascending.
- Leaves light-green slightly rough, flat, lengthened, acute at the apex. Blade very shiny, with prominent veins above. Sheaths with red-currant anthocyanes.
- Inflorescence : spike 20-50 mm long, erect, numerous spikelets lanceolate, spreading erect during flowering. Florets 10-25 in a spikelet, lemma usually with an awn as long as itself.
- Fruit : caryopsis surrounded with its flowering-glumes and strongly adnate to the palea. The continuous rhachilla is narrowly lanceolate in section.
- Meadow plant, in Normandy or in Charolais. Used as a fodder plant. Populations exist which are resistant to diclofopmethyl in U.S.A.
- Risk of confusion with Lolium temulentum .
- Biological type: annual.
Mistake with: Lolium temulentum
Ecological profile (click on flags):
Present
Rare
Present
Present
Present
Present
Present
Present
