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

Bayer Code : poatr

Scientific name: Poa trivialis L.


Synonym(s) of Sc. name:

Classification: Gramineae, Monocotyledonous

Common name: rough meadow-grass

Synonym(s) of Common name:

Name per country: DE : Gemeines Rispengras ; ES : poa ; FR : pâturin commun ; IT : fienarola comune ; PT : poa-comum ; EN : rough meadow-grass ; NL : ruw beemdgras ; DK : almindelig rapgræs

Biological type: Perennial with stolons


Seedling snapshot Seedling:

- Shoot folded, leaf sheath flattened.

- Leaf blade 20-50 times longer than broad, leaf glabrous.

- Ligule membranous, acute, auricles absent.


Adult plant snapshotAdult plant snapshotAdult plant snapshot Adult plant:

- Height: 5-30 cm. Plant tufted.

- Stem glabrous, with a fibrous root, ascending, terete.

- Leaf flat, acuminate, rough with scabrid sheath, the uppermost longer than the blade. Shining blade beneath. Sheath pink-crimson on 1-2 cm long.

- Inflorescence : big, pyramidal, spreading panicle with lower branches 4-6 together in semi-whorl. Spikelets ovate, 2-4 florets, somewhat hairy, lanate at the base. Unequal and 3-veined glumes. Lemmas lanceolate, ciliate at the base and on margins.

- Fodder plant providing an abundant and high quality hay. Rooting at the nodes. A weed in arable crops, where it acts as an autumn-germinating annual /biennial.

- Biological type: perennial with stolons.

Mistake with: Poa annua , Poa infirma , Lolium rigidum (at seedling stage).


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

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