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

Bayer Code : brote

Scientific name: Bromus tectorum L.

Synonym(s) of Sc. name:

Classification: Gramineae, Monocotyledonous

Common name: drooping brome

Synonym(s) of Common name:

Name per country: DE : Dach-Trespe ; ES : bromo ; FR : brome des toits ; IT : forasacco dei tetti ; PT : ; EN : drooping brome ; NL : zwenkdravik ;

Biological type: Annual

Seed:

.

Seedling:

- Shoot rolled, cylindrical leaf sheath.

- Lamina 20-50 times longer than large, leaf more or less hairy.

- Ligule membranous dentate, auricles absent.

Adult plant:

- Height: 20-60 cm. Cespitose.

- Stem lanate, hairy at fibrous root. Stem slender, finely pubescent in top.

- Leaves lanate, smooth, pubescent. Leaf sheath fused to 2/3 of it's length. Basal leaf sheath with maroon striations.

- Inflorescence : green or purplish panicle, unilateral, inclined, with short clustered branches, surrounded, flexuous, smooth, half-verticillate. Spikelets 20-3 cm, oblong inside, smooth inclined with 5-9 aristate, divergent florets. Unequal glumes 1-3 veins ; lower lanceolate, carinate with 7 weak veins, bifid, with straight awn.

- Presence of triazine resistant populations in France and in the U.S.A.

- - Risk of confusion at seedling stage with all other species of Bromus genus.

- Biological type: annual.

Mistake with: Bromus

Ecological profile (click on flags):   Present       Present       Present       Present    

Copyright © 2000-2001 INRA, all rights reserved ; J.-P. Lonchamp, Nov. 2000
http://www.dijon.inra.fr/bga/hyppa/hyppa-a/brote_ah.htm ,