Weed Science & Agronomy
INRA-Dijon
|
Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : phrco
Synonym(s) of Sc. name: Phragmites communis Trin., Arundo phragmites L.
Classification: Gramineae, Monocotyledonous
Common name: common reed
Synonym(s) of Common name:
Name per country: DE : Schilf ; ES : carrizo ; FR : roseau commun ; IT : cannuccia di palude ; PT : caniço ; EN : common reed ; NL : riet ;
Biological type: Perennial with rhizomes, Perennial with stolons
.
- Plant propagates overall vegetatively (rhizomes and stolons...); establishment from seedling is rare.
- Shoot rolled, leaf sheath terete.
- Leaf blade 20-50 times longer than wide, leaf more or less hairy.
- Ligule replaced by a ring of hairs, auricle absent.
- Height: 100-400 cm.
- Stem: slender, not woody.
- Leaves green, glaucous, 1-4 cm broad, margins hispid, tapered at base, very longitudinally tapered and acute at the apex. Leaf blade flat and glabrous. Leaf sheath smooth and glabrous enclosing the nodes.
- Inflorescence : spikelets 10-12 mm long, small groups in long erect panicle. Florets with very unequal floral glumes and scattered groups of long white hairs. Inflorescence 15-30 cm long, mostly purplish. Glumes entire, lengthened, acute, the lower circa 1/2 shorter than the upper.
- Fruit : caryopsis. Minute rachilla. Seed lengthening at base into a pedicelled part from which arise silky hairs.
- Plant of which underground parts are diuretic. Rare in crops but occasionally invades edges of arable fields from ditches.
- Biological type: perennial with rhizomes and stolons.
Ecological profile (click on flags):
Rare
Rare
Rare
Rare
Present
Present
