Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon

Bayer Code : airmu

Scientific name: Aira caryophyllea subsp. multiculmis (Dumort.) Bonnier & Layens

Synonym(s) of Sc. name:Aira multiculmis Dumortier , Aira armorica Albers.

Classification: Gramineae, Monocotyledonous

Common name: silver hair grass

Synonym(s) of Common name:

Name per country: DE : Nelkenhafer ; ES : aira ; FR : canche à nombreuses tiges ; IT : nebbia maggiore ; PT : ; EN : silver hair grass ;

Biological type: Annual

Seed:

.

Seedling:

- Shoot rolled, cylindrical leaf sheath.

- Leaf blade 20-50 times longer than wide, glabrous.

- Ligule membranous dentate outflanking the leaf sheath, auricles absent

Adult plant:

- Height: 15-20 cm. Cespitose.

- Stem fibrous.

- Leaves filiform to rolled. The leaves are rolled at first and later form the shape of a gutter. Green colour.

- Inflorescence effuse(8 cm long). Branches clustered with spikelet and sharpened glumes enclose 2 hermaphrodite flowers. Inflorescence in small number(little or no tillering), lower stem of 20 cm, pedicels of spikelet divaricate at maturity.

- Plant psammophil.

- Biological type: annual.

Ecological profile (click on flags):   Present       Present    

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http://www.dijon.inra.fr/bga/hyppa/hyppa-a/airmu_ah.htm ,