Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : setlu
Synonym(s) of Sc. name: Setaria glauca auct. non (L.) Beauv., Setaria lutescens F.T. Hubbard.
Classification: Gramineae, Monocotyledonous
Common name: yellow bristle-grass
Synonym(s) of Common name:
Name per country: DE : Niedrige Borstenhirse ; ES : almorejo blanco ; FR : sétaire glauque ; IT : pabbio rossastro ; PT : milhã-amarelada ; EN : yellow bristle-grass ; NL : zeegroene naaldaar ;
Biological type: Annual
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- Shoot folded, leaf sheath flattened.
- Leaf blade 2-5 times longer than wide, leaf more or less hairy.
- Ligule membranous, ciliate, surrounded with a ring of hairs, auricles absent.
- Height: 10-50 cm. Plant tufted, glabrescent.
- Stem erect, sometimes spreading, slender, smooth.
- Leaves bright-green, 4-7 mm broad, with long hairs in place of ligule. Red anthocyanins exist giving a dull blue-green colour. Hairs lanate, scattered, up to 5-10 mm, only at base of the blade and on its margins.
- Inflorescence in spike -like panicle, 2-5 cm long, oblong or cylindric, dense, yellowish, smooth up and down, with a scabrid rhachis; many hairs, yellow, fascicled, very prominent; spikelets ovate, obtuse. Unequal glumes, the upper just exceeding the 1/2 of the flower ; fertile floral glumes transversally wrinkled.
- Populations exist which are resistant to triazines in France, Canada, Spain, U.S.A.
- Biological type: annual.
Ecological profile (click on flags):
Present
Present
Present
Present
Present
Present
