Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : poain
Synonym(s) of Sc. name: Poa annua subsp. exilis (Tommasini) Murb.
Classification: Gramineae, Monocotyledonous
Common name: early meadow-grass
Synonym(s) of Common name:
Name per country: DE : Schwache Rispe ; ES : poa ; FR : pâturin grêle ; IT : fienarola minore ; PT : ; EN : early meadow-grass ;
Biological type: Annual
- Shoot folded, leaf sheath flattened.
- Leaf blade 20-50 times longer than broad, leaf glabrous.
- Ligule membranous, truncate, auricles absent.
- Height: 5-30 m. Plant tufted. Plant very variable in forms.
- Leaf with a dull, sometimes shining blade, glabrous, smooth with 2 parallel furrows near the midvein. Hooded tip. Parallel-margined blade, tapered into a beak. Sheath glabrous, flattened and keeled.
- Inflorescence with branches always erect. Spikelets 1-2 mm broad, distant, and not overlapping the rhachis,(the terminal floret is at most 1.5 times as long as its pedicel ). Floret with anthers less than 0.5 mm, lengthened and ovoid panicle.
- Rare in crops.
- Biological type: annual.
Mistake with: Poa annua , Poa trivialis
Ecological profile (click on flags):
Rare
Rare
Rare
