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

Bayer Code : apesv

Scientific name: Apera spica-venti (L.) P. Beauvois

Synonym(s) of Sc. name:

Classification: Gramineae, Monocotyledonous

Common name: loose silky-bent

Synonym(s) of Common name:

Name per country: DE : Gemeiner Windhalm ; ES : hierba fina ; FR : jouet du vent ; IT : cappellini dei campi ; EN : loose silky-bent ; NL : grote windhalm ; pluimgras ; DK : vindaks

Biological type: Annual

Seed snapshot Seed:

.

Seedling snapshot Seedling:

- Shoot rolled, leaf sheath cylindrical.

- Lamina 20-50 time longer than large more or less hairy.

- Ligule membranous dentate. Auricles absent.

Adult plant snapshot Adult plant snapshot Adult plant snapshot Adult plant:

- Height: 40-100 cm. Cespitose.

- Stem robust, erect and glabrous.

- Leaves flat, glabrous, scabrid, 3-6 mm wide. Lower face flat slightly shiny. Base of leaf sheath coloured dark red .

- Inflorescence: Panicle of 15-30 cm purplish or greenish, pyramidal and spread at flowering, very diffuse. Unequal glumes, lower glumella fitted under the top of awn 4-6 times longer than spikelet.

- Biological type: annual.

Mistake with: Alopecurus myosuroides

Ecological profile (click on flags): BeneLux   Present     Germany  Present     Denmark  Present     Spain  Rare     France  Present     Great Britain  Rare     Italy  Rare    

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